x402 List

x402 Protocol Service Directory

●

Mekler AI

Data PAYMENT-READY

payment-ready until 2026-10-12

Pay-per-call services for agents over x402 (USDC on Base or Solana, no API key): annual SEC financial facts by CIK with filing links, CSV validation against typed column rules, citation source-overlap checks, and static web page text extraction. OpenAPI with schemas and examples at /openapi.json; llms.txt and pricing at the root.

Pay from $0.005 to $0.05 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-10-05 · no on-chain settlement recorded yet

BASE URL https://api.mekler.ai │ WEBSITE https://api.mekler.ai/ │ ENDPOINTS 5 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-10-05 │ MONITORED SINCE 2026-10-05

VERDICT

ranking generation 3

solid 87/100 #69 of 350 in Data by measured score

What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 82ms response p95, x402 compliance 14 of 14, $0.005 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 350 listings, this one among them. That set is wider than the 350 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
SniperX•x402 strong 96 99.9% $323.16
glim.sh strong 94 100% $20.31
cn402 solid 93 100% $36.60
x402node solid 92 100% $36.60
twit.sh solid 92 100% $32.64
5 of 349 other ranked services in Data · see the whole category

ASSESSMENT

updated 44m ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime · latest daily rollup
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
82ms
avg response
82ms
total checks
1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.005 to $0.05 (p43 in Data)
price (min)
$0.005
price (max)
$0.05
category percentile (min)
p43 in Data
category percentile (max)
p59 in Data
endpoints / prices
5 / 2
model
tiered
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
8d
registrar
NameCheap, Inc.
hosting
custom
domain created
2026-09-26

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
measured since
--- (start of our harvest window)
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /v1/data/csv/validate-column-spec $0.05 Base/Solana USDC header
POST /v1/data/csv/validate-data $0.05 Base/Solana USDC header
POST /v1/finance/companies/retrieve-annual-facts $0.05 Base/Solana USDC header
POST /v1/research/citations/check-source-overlap $0.05 Base/Solana USDC header
POST /v1/web/pages/extract-static-content $0.005 Base/Solana USDC header
5 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /v1/data/csv/validate-column-spec returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://api.mekler.ai/v1/data/csv/validate-column-spec'
// 402 response (captured by monitor) · 5 payloads · click to expand
[
  {
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.mekler.ai/v1/finance/companies/retrieve-annual-facts",
      "tags": [
        "finance",
        "financial-statements",
        "company-fundamentals",
        "annual-reports",
        "SEC"
      ],
      "mimeType": "application/json",
      "description": "Prepare six annual US-GAAP USD fields by CIK with SEC sources, same-filing growth checks and optional observed revisions. Free SEC data; paid selection and checks. Inspect coverage before paying. Mechanical checks do not establish accounting comparability or explain restatements.",
      "serviceName": "Mekler AI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "cik": "1",
              "years": 1
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "cik": "0000000001",
              "years": [
                {
                  "fields": {
                    "cash": {
                      "value": null,
                      "status": "missing"
                    },
                    "assets": {
                      "tag": "Assets",
                      "form": "10-K",
                      "unit": "USD",
                      "filed": "2025-02-01",
                      "value": 100,
                      "status": "reported",
                      "taxonomy": "us-gaap",
                      "accession": "0000000001-25-000001",
                      "filing_url": "https://www.sec.gov/Archives/edgar/data/1/000000000125000001/0000000001-25-000001-index.html",
                      "period_end": "2024-12-31",
                      "period_start": null
                    },
                    "revenue": {
                      "value": null,
                      "status": "missing"
                    },
                    "net_income": {
                      "value": null,
                      "status": "missing"
                    },
                    "liabilities": {
                      "value": null,
                      "status": "missing"
                    },
                    "operating_cash_flow": {
                      "value": null,
                      "status": "missing"
                    }
                  },
                  "period_end": "2024-12-31",
                  "fiscal_year": 2024
                }
              ],
              "status": "ok",
              "sources": {
                "submissions": "https://data.sec.gov/submissions/CIK0000000001.json",
                "companyfacts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000000001.json"
              },
              "coverage": {
                "complete": false,
                "returned_years": 1,
                "reported_fields": 1,
                "requested_years": 1,
                "requested_fields": 6
              },
              "comparisons": [],
              "limitations": [
                "US-GAAP standard whole-entity USD facts in annual 10-K/10-K/A only."
              ],
              "retrieved_at": "2026-10-04T00:00:00Z",
              "selection_policy": "latest-annual-filed-per-field-v1"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "cik"
                  ],
                  "properties": {
                    "cik": {
                      "type": "string",
                      "pattern": "^[0-9]{1,10}$"
                    },
                    "years": {
                      "type": "integer",
                      "default": 3,
                      "maximum": 3,
                      "minimum": 1
                    },
                    "snapshot": {
                      "type": "string",
                      "maxLength": 65536,
                      "minLength": 1
                    },
                    "include_revisions": {
                      "type": "boolean",
                      "default": false
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "cik",
                    "selection_policy",
                    "retrieved_at",
                    "years",
                    "coverage",
                    "sources",
                    "limitations",
                    "comparisons"
                  ],
                  "properties": {
                    "cik": {
                      "type": "string"
                    },
                    "years": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "fiscal_year",
                          "period_end",
                          "fields"
                        ],
                        "properties": {
                          "fields": {
                            "type": "object",
                            "required": [
                              "revenue",
                              "net_income",
                              "assets",
                              "liabilities",
                              "cash",
                              "operating_cash_flow"
                            ],
                            "maxProperties": 6,
                            "minProperties": 6,
                            "additionalProperties": {
                              "type": "object",
                              "required": [
                                "status",
                                "value"
                              ],
                              "properties": {
                                "tag": {
                                  "type": "string"
                                },
                                "form": {
                                  "enum": [
                                    "10-K",
                                    "10-K/A"
                                  ],
                                  "type": "string"
                                },
                                "unit": {
                                  "enum": [
                                    "USD"
                                  ],
                                  "type": "string"
                                },
                                "filed": {
                                  "type": "string"
                                },
                                "value": {
                                  "type": [
                                    "number",
                                    "null"
                                  ]
                                },
                                "reason": {
                                  "type": "string"
                                },
                                "status": {
                                  "enum": [
                                    "reported",
                                    "missing",
                                    "ambiguous",
                                    "unsupported"
                                  ],
                                  "type": "string"
                                },
                                "taxonomy": {
                                  "enum": [
                                    "us-gaap"
                                  ],
                                  "type": "string"
                                },
                                "accession": {
                                  "type": "string"
                                },
                                "filing_url": {
                                  "type": "string"
                                },
                                "period_end": {
                                  "type": "string"
                                },
                                "period_start": {
                                  "type": [
                                    "string",
                                    "null"
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "period_end": {
                            "type": "string"
                          },
                          "fiscal_year": {
                            "type": [
                              "integer",
                              "null"
                            ]
                          }
                        },
                        "additionalProperties": false
                      },
                      "maxItems": 3,
                      "minItems": 1
                    },
                    "status": {
                      "enum": [
                        "ok"
                      ],
                      "type": "string"
                    },
                    "sources": {
                      "type": "object",
                      "required": [
                        "companyfacts",
                        "submissions"
                      ],
                      "properties": {
                        "submissions": {
                          "type": "string"
                        },
                        "companyfacts": {
                          "type": "string"
                        }
                      },
                      "additionalProperties": false
                    },
                    "coverage": {
                      "type": "object",
                      "required": [
                        "requested_years",
                        "returned_years",
                        "reported_fields",
                        "requested_fields",
                        "complete"
                      ],
                      "properties": {
                        "complete": {
                          "type": "boolean"
                        },
                        "returned_years": {
                          "type": "integer",
                          "minimum": 0
                        },
                        "reported_fields": {
                          "type": "integer",
                          "minimum": 0
                        },
                        "requested_years": {
                          "type": "integer",
                          "minimum": 0
                        },
                        "requested_fields": {
                          "type": "integer",
                          "minimum": 0
                        }
                      },
                      "additionalProperties": false
                    },
                    "revisions": {
                      "type": "object"
                    },
                    "comparisons": {
                      "type": "array",
                      "items": {
                        "type": "object"
                      },
                      "maxItems": 12
                    },
                    "limitations": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "retrieved_at": {
                      "type": "string"
                    },
                    "selection_policy": {
                      "type": "string"
                    },
                    "source_retrieved_at": {
                      "type": "object",
                      "properties": {
                        "submissions": {
                          "type": "string"
                        },
                        "companyfacts": {
                          "type": "string"
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "additionalProperties": false
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "memo": "m:A6gc8SjvC0e0VDlj9jXRJg",
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "meklerQuote": "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.03a81cf128ef0b47b4543963f635d12638426a4281d1cc827fec2e4f9a53e1a9"
        },
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "meklerQuote": "eyJhbW91bnQiOiI1MDAwMCIsImFzc2V0IjoiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwiZGlnZXN0IjoiZWU0ZTM1MDQxMzE3OTE4NThlYWUyMmMzNjIyOTgxZmEyNjFhYmNmMjBiM2JiMjdlMmU3ZmM1ZGNiZTJjODU0NyIsImV4cGlyZXMiOjE3OTExODcwMjAsImZlZVBheWVyIjoiIiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwib3JpZ2luIjoiaHR0cHM6Ly9hcGkubWVrbGVyLmFpIiwicGF0aCI6Ii92MS9kYXRhL2Nzdi92YWxpZGF0ZS1kYXRhIiwicGF5VG8iOiIweEY2YzZFMmU1MzBiYjMxMWMxNGE0OUMxYTA3QzcyMGZjMjMyYzA3YzUiLCJwcm92aWRlciI6ImNkcCIsInZlcnNpb24iOiJjc3YtdmFsaWRhdG9yLXYxIn0=.86f95c83c0a06a903628553c799284a738573fa1ae0d2205213113fe99d7feae",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.mekler.ai/v1/data/csv/validate-data",
      "tags": [
        "csv",
        "data-validation",
        "data-quality"
      ],
      "mimeType": "application/json",
      "description": "Validate CSV before import using a fixed JSON column specification. Checks missing/extra columns, required cells, string/integer/decimal/boolean/date types, uniqueness, allowed values and numeric/row-count bounds. Returns pass/fail with row/column error codes. POST JSON with csv and spec.columns; schemas/examples attached. Full contract: /openapi.json. Max 2,000 rows, 50 columns, 256 KiB; first 50 failures. No formulas, cross-column rules, fact checking or data repair.",
      "serviceName": "Mekler AI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "csv": "id,amount\na,12.50\na,-2.00\n",
              "spec": {
                "columns": [
                  {
                    "name": "id",
                    "type": "string",
                    "unique": true,
                    "required": true
                  },
                  {
                    "max": "100",
                    "min": "0",
                    "name": "amount",
                    "type": "decimal",
                    "required": true
                  }
                ],
                "min_rows": 1
              }
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "verdict": "fail",
              "boundary": "Only supplied explicit criteria checked; no certification of truth or subjective quality.",
              "failures": [
                {
                  "row": 2,
                  "code": "unique",
                  "column": "id"
                },
                {
                  "row": 2,
                  "code": "min",
                  "column": "amount"
                }
              ],
              "rows_checked": 2,
              "failure_count": 2,
              "receipt_sha256": "32265ae46050fa0067b9adb0df085a5cf3d9fa3d47d91e9ea2f61135a382d8ac",
              "schema_version": 1,
              "failures_truncated": false
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "csv",
                    "spec"
                  ],
                  "properties": {
                    "csv": {
                      "type": "string",
                      "description": "UTF-8 comma-delimited CSV with header. No trimming. Data record numbers start at 1; quoted newlines are one record."
                    },
                    "spec": {
                      "type": "object",
                      "required": [
                        "columns"
                      ],
                      "properties": {
                        "columns": {
                          "type": "array",
                          "items": {
                            "type": "object",
                            "required": [
                              "name",
                              "type"
                            ],
                            "properties": {
                              "max": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ],
                                "description": "Inclusive numeric bound; allowed only for integer or decimal columns."
                              },
                              "min": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ],
                                "description": "Inclusive numeric bound; allowed only for integer or decimal columns."
                              },
                              "enum": {
                                "type": "array",
                                "items": {
                                  "type": "string",
                                  "maxLength": 1000
                                },
                                "maxItems": 100,
                                "minItems": 1,
                                "description": "Exact allowed cell strings, compared without trimming or normalization."
                              },
                              "name": {
                                "type": "string",
                                "maxLength": 100,
                                "minLength": 1
                              },
                              "type": {
                                "enum": [
                                  "string",
                                  "integer",
                                  "decimal",
                                  "boolean",
                                  "date"
                                ],
                                "type": "string",
                                "description": "string: literal text; integer: base-10, no plus sign or leading zeros; decimal: plain decimal, no exponent; boolean: lowercase true/false; date: valid YYYY-MM-DD."
                              },
                              "unique": {
                                "type": "boolean",
                                "default": false,
                                "description": "Reject repeated nonempty values within this column; numeric values compare numerically."
                              },
                              "required": {
                                "type": "boolean",
                                "default": false,
                                "description": "Reject empty cells. Whitespace is not trimmed."
                              }
                            },
                            "additionalProperties": false
                          },
                          "maxItems": 50,
                          "minItems": 1,
                          "description": "Fixed built-in checks. Every named column must exist, even when required is false."
                        },
                        "max_rows": {
                          "type": "integer",
                          "default": 2000,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "min_rows": {
                          "type": "integer",
                          "default": 0,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "allow_extra_columns": {
                          "type": "boolean",
                          "default": false,
                          "description": "If false, reject CSV headers not named in columns."
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "schema_version",
                    "verdict",
                    "rows_checked",
                    "failure_count",
                    "failures",
                    "failures_truncated",
                    "receipt_sha256",
                    "boundary"
                  ],
                  "properties": {
                    "verdict": {
                      "enum": [
                        "pass",
                        "fail"
                      ],
                      "type": "string"
                    },
                    "boundary": {
                      "type": "string"
                    },
                    "failures": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "code",
                          "row",
                          "column"
                        ],
                        "properties": {
                          "row": {
                            "type": [
                              "integer",
                              "null"
                            ],
                            "description": "One-based data record, excluding header; null for file/header errors."
                          },
                          "code": {
                            "enum": [
                              "missing_column",
                              "extra_columns",
                              "row_width",
                              "required",
                              "type",
                              "min",
                              "max",
                              "enum",
                              "unique",
                              "min_rows",
                              "max_rows"
                            ],
                            "type": "string"
                          },
                          "column": {
                            "type": [
                              "string",
                              "null"
                            ],
                            "description": "Column name, or null when the error applies to the row or file."
                          }
                        }
                      },
                      "maxItems": 50
                    },
                    "rows_checked": {
                      "type": "integer",
                      "minimum": 0
                    },
                    "failure_count": {
                      "type": "integer",
                      "minimum": 0
                    },
                    "receipt_sha256": {
                      "type": "string",
                      "pattern": "^[0-9a-f]{64}$"
                    },
                    "schema_version": {
                      "enum": [
                        1
                      ],
                      "type": "integer"
                    },
                    "failures_truncated": {
                      "type": "boolean"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "memo": "m:NATDRMfSIL0rxdXlmoj0Rw",
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "meklerQuote": "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.3404c344c7d220bd2bc5d5e59a88f447e9328ca714f90711a475a7653212b3b7"
        },
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "meklerQuote": "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.74ed4801c373eab8a591522c25632d66ba9909eb8382b202617160abbf8f8f42",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.mekler.ai/v1/data/csv/validate-column-spec",
      "tags": [
        "csv",
        "schema-validation",
        "data-contracts"
      ],
      "mimeType": "application/json",
      "description": "Validate a fixed JSON CSV column specification before assigning extraction or checking deliveries. Send typed column settings in requirements; returns the validated spec for /v1/data/csv/validate-data. Rejects unknown fields and unsupported settings. This checks the specification itself, not CSV data. No custom expressions, cross-column rules or prose-to-rule conversion. Schemas/examples attached; full contract: /openapi.json.",
      "serviceName": "Mekler AI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "requirements": {
                "columns": [
                  {
                    "name": "id",
                    "type": "string",
                    "unique": true,
                    "required": true
                  },
                  {
                    "max": "100",
                    "min": "0",
                    "name": "amount",
                    "type": "decimal",
                    "required": true
                  }
                ],
                "min_rows": 1
              }
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "spec": {
                "columns": [
                  {
                    "name": "id",
                    "type": "string",
                    "unique": true,
                    "required": true
                  },
                  {
                    "max": "100",
                    "min": "0",
                    "name": "amount",
                    "type": "decimal",
                    "required": true
                  }
                ],
                "min_rows": 1
              },
              "boundary": "Typed requirements only; no natural-language interpretation.",
              "unsupported": [],
              "schema_version": 1
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "requirements"
                  ],
                  "properties": {
                    "requirements": {
                      "type": "object",
                      "required": [
                        "columns"
                      ],
                      "properties": {
                        "columns": {
                          "type": "array",
                          "items": {
                            "type": "object",
                            "required": [
                              "name",
                              "type"
                            ],
                            "properties": {
                              "max": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ],
                                "description": "Inclusive numeric bound; allowed only for integer or decimal columns."
                              },
                              "min": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ],
                                "description": "Inclusive numeric bound; allowed only for integer or decimal columns."
                              },
                              "enum": {
                                "type": "array",
                                "items": {
                                  "type": "string",
                                  "maxLength": 1000
                                },
                                "maxItems": 100,
                                "minItems": 1,
                                "description": "Exact allowed cell strings, compared without trimming or normalization."
                              },
                              "name": {
                                "type": "string",
                                "maxLength": 100,
                                "minLength": 1
                              },
                              "type": {
                                "enum": [
                                  "string",
                                  "integer",
                                  "decimal",
                                  "boolean",
                                  "date"
                                ],
                                "type": "string",
                                "description": "string: literal text; integer: base-10, no plus sign or leading zeros; decimal: plain decimal, no exponent; boolean: lowercase true/false; date: valid YYYY-MM-DD."
                              },
                              "unique": {
                                "type": "boolean",
                                "default": false,
                                "description": "Reject repeated nonempty values within this column; numeric values compare numerically."
                              },
                              "required": {
                                "type": "boolean",
                                "default": false,
                                "description": "Reject empty cells. Whitespace is not trimmed."
                              }
                            },
                            "additionalProperties": false
                          },
                          "maxItems": 50,
                          "minItems": 1,
                          "description": "Fixed built-in checks. Every named column must exist, even when required is false."
                        },
                        "max_rows": {
                          "type": "integer",
                          "default": 2000,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "min_rows": {
                          "type": "integer",
                          "default": 0,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "allow_extra_columns": {
                          "type": "boolean",
                          "default": false,
                          "description": "If false, reject CSV headers not named in columns."
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "schema_version",
                    "spec",
                    "unsupported",
                    "boundary"
                  ],
                  "properties": {
                    "spec": {
                      "type": "object",
                      "required": [
                        "columns"
                      ],
                      "properties": {
                        "columns": {
                          "type": "array",
                          "items": {
                            "type": "object",
                            "required": [
                              "name",
                              "type"
                            ],
                            "properties": {
                              "max": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ]
                              },
                              "min": {
                                "oneOf": [
                                  {
                                    "type": "number"
                                  },
                                  {
                                    "type": "string"
                                  }
                                ]
                              },
                              "enum": {
                                "type": "array",
                                "items": {
                                  "type": "string",
                                  "maxLength": 1000
                                },
                                "maxItems": 100,
                                "minItems": 1
                              },
                              "name": {
                                "type": "string",
                                "maxLength": 100,
                                "minLength": 1
                              },
                              "type": {
                                "enum": [
                                  "string",
                                  "integer",
                                  "decimal",
                                  "boolean",
                                  "date"
                                ],
                                "type": "string"
                              },
                              "unique": {
                                "type": "boolean",
                                "default": false
                              },
                              "required": {
                                "type": "boolean",
                                "default": false
                              }
                            },
                            "additionalProperties": false
                          },
                          "maxItems": 50,
                          "minItems": 1
                        },
                        "max_rows": {
                          "type": "integer",
                          "default": 2000,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "min_rows": {
                          "type": "integer",
                          "default": 0,
                          "maximum": 2000,
                          "minimum": 0
                        },
                        "allow_extra_columns": {
                          "type": "boolean",
                          "default": false
                        }
                      },
                      "additionalProperties": false
                    },
                    "boundary": {
                      "type": "string"
                    },
                    "unsupported": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 0
                    },
                    "schema_version": {
                      "enum": [
                        1
                      ],
                      "type": "integer"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "memo": "m:pMi3T_Azmya0Rzd0uyu9Jw",
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "meklerQuote": "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.a4c8b74ff0339b26b4473774bb2bbd2778ceea6bab7afd3842c7ddd8aeee7393"
        },
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "meklerQuote": "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.00c73d82495b59255983c220d1526e44a0b3e4ce4abe25a81155c88a82fabf3c",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.mekler.ai/v1/research/citations/check-source-overlap",
      "tags": [
        "research",
        "citations",
        "source-overlap",
        "due-diligence"
      ],
      "mimeType": "application/json",
      "description": "Check source overlap before counting corroboration. Supply 2-10 URLs, optional article HTML and citation chains. Returns duplicate URLs, shared links and supplied-source groups with locations. No fetching, truth or independence verdict. Schemas: /openapi.json.",
      "serviceName": "Mekler AI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "claim": "Reported benefit",
              "citations": [
                {
                  "id": "a",
                  "url": "https://a.test",
                  "html": "<a href=\"https://b.test\">Source</a>"
                },
                {
                  "id": "b",
                  "url": "https://b.test"
                }
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "service": "citation-overlap-checker",
              "coverage": {
                "citation_count": 2,
                "html_document_count": 1
              },
              "limitations": [
                "Citation overlap is a candidate, not proof of dependence."
              ],
              "independence": "unknown",
              "schema_version": "1",
              "shared_origin_groups": [],
              "shared_link_candidates": [],
              "supplied_lineage_links": [],
              "unresolved_citation_ids": [
                "a",
                "b"
              ],
              "citation_link_candidates": [
                {
                  "to_id": "b",
                  "status": "citation_link_candidate",
                  "from_id": "a",
                  "locations": [
                    {
                      "line": 1,
                      "column": 0,
                      "target_url": "https://b.test/",
                      "anchor_text": "Source"
                    }
                  ]
                }
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "claim",
                    "citations"
                  ],
                  "properties": {
                    "claim": {
                      "type": "string",
                      "maxLength": 4000,
                      "minLength": 1
                    },
                    "citations": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "id",
                          "url"
                        ],
                        "properties": {
                          "id": {
                            "type": "string",
                            "pattern": "^[A-Za-z0-9_.-]{1,64}$"
                          },
                          "url": {
                            "type": "string",
                            "format": "uri",
                            "pattern": "^https://",
                            "maxLength": 2048
                          },
                          "html": {
                            "type": "string",
                            "maxLength": 131072
                          },
                          "derives_from": {
                            "type": "string",
                            "maxLength": 64
                          },
                          "evidence_locator": {
                            "type": "string",
                            "maxLength": 256,
                            "minLength": 1
                          }
                        },
                        "dependentRequired": {
                          "derives_from": [
                            "evidence_locator"
                          ],
                          "evidence_locator": [
                            "derives_from"
                          ]
                        },
                        "additionalProperties": false
                      },
                      "maxItems": 10,
                      "minItems": 2
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "service",
                    "schema_version",
                    "shared_origin_groups",
                    "supplied_lineage_links",
                    "shared_link_candidates",
                    "citation_link_candidates",
                    "unresolved_citation_ids",
                    "independence",
                    "coverage",
                    "limitations"
                  ],
                  "properties": {
                    "service": {
                      "const": "citation-overlap-checker"
                    },
                    "coverage": {
                      "type": "object",
                      "required": [
                        "citation_count",
                        "html_document_count"
                      ],
                      "properties": {
                        "citation_count": {
                          "type": "integer"
                        },
                        "html_document_count": {
                          "type": "integer"
                        }
                      }
                    },
                    "limitations": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "independence": {
                      "const": "unknown"
                    },
                    "schema_version": {
                      "const": "1"
                    },
                    "shared_origin_groups": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "origin_url",
                          "citation_ids",
                          "basis"
                        ],
                        "properties": {
                          "basis": {
                            "const": "supplied_lineage_or_identical_url"
                          },
                          "origin_url": {
                            "type": "string"
                          },
                          "citation_ids": {
                            "type": "array",
                            "items": {
                              "type": "string"
                            }
                          }
                        }
                      }
                    },
                    "shared_link_candidates": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "linked_url",
                          "documents",
                          "status"
                        ],
                        "properties": {
                          "status": {
                            "const": "shared_link_candidate"
                          },
                          "documents": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "id",
                                "locations"
                              ],
                              "properties": {
                                "id": {
                                  "type": "string"
                                },
                                "locations": {
                                  "type": "array",
                                  "items": {
                                    "type": "object",
                                    "required": [
                                      "target_url",
                                      "line",
                                      "column",
                                      "anchor_text"
                                    ],
                                    "properties": {
                                      "line": {
                                        "type": "integer"
                                      },
                                      "column": {
                                        "type": "integer"
                                      },
                                      "target_url": {
                                        "type": "string"
                                      },
                                      "anchor_text": {
                                        "type": "string"
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          },
                          "linked_url": {
                            "type": "string"
                          }
                        }
                      }
                    },
                    "supplied_lineage_links": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "from_id",
                          "to_id",
                          "evidence_locator"
                        ],
                        "properties": {
                          "to_id": {
                            "type": "string"
                          },
                          "from_id": {
                            "type": "string"
                          },
                          "evidence_locator": {
                            "type": "string"
                          }
                        }
                      }
                    },
                    "unresolved_citation_ids": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "citation_link_candidates": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "from_id",
                          "to_id",
                          "locations",
                          "status"
                        ],
                        "properties": {
                          "to_id": {
                            "type": "string"
                          },
                          "status": {
                            "const": "citation_link_candidate"
                          },
                          "from_id": {
                            "type": "string"
                          },
                          "locations": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "target_url",
                                "line",
                                "column",
                                "anchor_text"
                              ],
                              "properties": {
                                "line": {
                                  "type": "integer"
                                },
                                "column": {
                                  "type": "integer"
                                },
                                "target_url": {
                                  "type": "string"
                                },
                                "anchor_text": {
                                  "type": "string"
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "memo": "m:yuHkFzzTrOw0PI_82AZC6Q",
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "meklerQuote": "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.cae1e4173cd3acec343c8ffcd80642e924cbaeab498c130e6027241414626ed4"
        },
        "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
        "amount": "5000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "meklerQuote": "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.caca70c599e3be9ff89f9c0d5455ab79c67c13bee433d4f57888acbf92d89ecd",
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.mekler.ai/v1/web/pages/extract-static-content",
      "tags": [
        "research",
        "web-extraction",
        "static-html",
        "RAG"
      ],
      "mimeType": "application/json",
      "description": "Fetch one public static HTML page after robots and public-address checks, then return bounded readable text, title, final URL and source links. Standard x402: POST the URL, sign the 402 and resend the same body. The 402 also returns an encrypted payment_request that pays for exactly the quoted fetch. No browser, login, summary or full-site crawl.",
      "serviceName": "Mekler AI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.org/"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "text": "This domain is for use in documentation examples without needing permission. This is not a service, avoid relying on it for testing and monitoring purposes.\nLearn more",
              "title": "Example Domain",
              "status": "ok",
              "coverage": "static_html_only",
              "final_url": "https://example.org/",
              "redirects": 0,
              "truncated": false,
              "elapsed_ms": 12,
              "fetched_at": "2026-09-29T00:00:00Z",
              "source_links": [
                "https://iana.org/help/example-domains"
              ],
              "bytes_fetched": 274
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "format": "uri",
                      "maxLength": 2048,
                      "minLength": 1
                    },
                    "snapshot": {
                      "type": "string",
                      "maxLength": 65536,
                      "minLength": 1
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "final_url",
                    "title",
                    "text",
                    "source_links",
                    "fetched_at",
                    "truncated",
                    "coverage",
                    "bytes_fetched",
                    "redirects",
                    "elapsed_ms"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "maxLength": 20000
                    },
                    "title": {
                      "type": "string",
                      "maxLength": 300
                    },
                    "status": {
                      "enum": [
                        "ok"
                      ],
                      "type": "string"
                    },
                    "coverage": {
                      "enum": [
                        "static_html_only"
                      ],
                      "type": "string"
                    },
                    "final_url": {
                      "type": "string",
                      "format": "uri"
                    },
                    "redirects": {
                      "type": "integer",
                      "maximum": 3,
                      "minimum": 0
                    },
                    "truncated": {
                      "type": "boolean"
                    },
                    "elapsed_ms": {
                      "type": "number",
                      "minimum": 0
                    },
                    "fetched_at": {
                      "type": "string",
                      "format": "date-time"
                    },
                    "source_links": {
                      "type": "array",
                      "items": {
                        "type": "string",
                        "format": "uri"
                      },
                      "maxItems": 100
                    },
                    "bytes_fetched": {
                      "type": "integer",
                      "minimum": 0
                    }
                  },
                  "additionalProperties": false
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/mekler-ai/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
10-05 · uptime 100.0% · 82ms avg10-0510-05
30D UPTIME 100%
RESPONSE TIME
10-05 · 82ms avg10-05 · 82ms avg10-0510-05
AVG RESP 278ms
PRICE (captured 402, USD)
building price history ($0.05)

Median across 5 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-10-05 · last up 2026-10-05

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (4) live · click to expand
TIME STATUS RESP CAUSE
● OK 327ms
● OK 396ms
● OK 307ms
● OK 82ms

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