x402 List

x402 Protocol Service Directory

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Data Quality Gate

Verification PAYMENT-READY

payment-ready until 2026-09-13

Clean scraped data and assess data quality before an agent acts on it. Three POST endpoints, all deterministic and LLM-free: identical input always returns byte-identical output, so results are cacheable and replayable. POST /api ($0.01) - dataset quality verdict. Send a JSON array of rows; get a 0-100 score, a RELIABLE / USABLE_WITH_CLEANING / UNRELIABLE judgement, and exact per-check facts: completeness, nulls, type consistency, impossible values, exact and near duplicates, statistical outliers, cardinality. On financial data it also reports cross-source price divergence for the same asset. POST /api/clean ($0.04) - deterministic data cleaning. The response body IS the clean data: post a JSON array of row objects and the same array comes back repaired; post one object and one object comes back; post plain text and text comes back. CSV is accepted and returns parsed rows. Fixes broken encoding and mojibake ("Café" becomes "Café"), strips leftover HTML tags and entities, removes zero-width and invisible characters and non-breaking spaces, normalises whitespace. Repairs how data was encoded, never what it says: a negative price is reported, not rewritten. Flags failed extractions such as captcha walls and error pages instead of passing them off as content. POST /api/clean/audit ($0.12) - the same repaired data plus a reversible ledger of every transformation. Replaying it backwards reconstructs the exact input, byte for byte. Use it to clean scraped data, fix encoding, remove HTML from text, deduplicate rows, validate dataset contents, assess data quality, and decide whether to trust data before ingesting, indexing or trading on it. Never destroys a legitimate value: "None" stays a surname, "NA" stays Namibia, a Persian ZWNJ and an emoji joiner survive untouched. The full ruleset is published at GET /api/clean, readable before paying. Also a free Python library: pip install scrubkit.

Pay from $0.01 to $0.12 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

BASE URL https://www.aidatatools.dev/api │ WEBSITE https://www.aidatatools.dev │ ENDPOINTS 3 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-08-11 │ MONITORED SINCE 2026-08-11

VERDICT

ranking generation 3

solid 91/100 #16 of 64 in Verification by measured score

What the score read on this service: status online, 100% uptime 30d, 2822ms response p95, x402 compliance 14 of 14, $0.01 price against the category. 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 Verification, 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 64 listings, this one among them. That set is wider than the 64 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 VERIFICATION

Other Verification 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
Rubric Protocol — Post-Quantum AI Attestation strong 99 100% ---
HostDeFi Token Risk API strong 97 100% ---
scvd.store — evidence observatory for the x402 economy strong 97 100% ---
probe402 strong 96 100% ---
Hermes Plant strong 95 100% ---
5 of 63 other ranked services in Verification

ASSESSMENT

updated 6h 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 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
2822ms
avg response
1675ms
total checks
2,309

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 $0.01 to $0.12 (p45 in Verification)
price (min)
$0.01
price (max)
$0.12
category percentile (min)
p45 in Verification
category percentile (max)
p58 in Verification
endpoints / prices
3 / 3
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
24d
registrar
Name.com, Inc.
hosting
custom
domain created
2026-08-08

Identity facts, not a risk score.

traction ---

This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.

CHANGES

10 in 30d

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 3h ago (10 in 30d)

schema changed · 3h ago

schema removed POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

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schema added POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /api/clean exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

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schema changed · 12h ago

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schema removed POST /api/clean/audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

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schema changed · 31h ago

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schema added POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added POST /api/clean exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

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schema changed · 46h ago

schema removed POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

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schema added POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /api/clean exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /api/clean/audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema changed · 2d ago

schema removed POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema removed POST /api/clean exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

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schema added POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

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schema changed · 3d ago

schema removed POST /api exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

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schema changed · 3d ago

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schema added POST /api/clean/audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

see all changes for this service

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 /api $0.01 Base/Solana USDC header
POST /api/clean $0.04 Base/Solana USDC header
POST /api/clean/audit $0.12 Base/Solana USDC header
3 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /api 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://www.aidatatools.dev/api/api'
// 402 response (captured by monitor) · 3 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
        "amount": "40000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.aidatatools.dev/api/clean",
      "tags": [
        "data-quality",
        "scraping",
        "cleaning",
        "deterministic",
        "json"
      ],
      "mimeType": "application/json",
      "description": "Data Quality Gate: deterministic repair of scraped data",
      "serviceName": "AI Data Tools"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "sku": "B0C1",
              "price": "12,99",
              "title": "Café Table Lamp & Shade"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "sku": "B0C1",
              "price": "12,99",
              "title": "Café Table Lamp & Shade"
            }
          }
        },
        "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",
                  "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
                },
                "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"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
        "amount": "120000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
        "amount": "120000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.aidatatools.dev/api/clean/audit",
      "tags": [
        "data-quality",
        "scraping",
        "cleaning",
        "deterministic",
        "json"
      ],
      "mimeType": "application/json",
      "description": "Data Quality Gate: deterministic repair + replayable audit trail",
      "serviceName": "AI Data Tools"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": [
              {
                "sku": "B0C1",
                "price": "12,99",
                "title": "Café Table Lamp & Shade"
              },
              {
                "sku": "B0C2",
                "price": null,
                "title": "N/A"
              }
            ],
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "data": [
                {
                  "sku": "B0C1",
                  "price": "12,99",
                  "title": "Café Table Lamp & Shade"
                }
              ],
              "audit": {
                "ledger": [
                  {
                    "path": "[0].title",
                    "rule": "mojibake.repair",
                    "after": "Café",
                    "before": "Café"
                  }
                ],
                "replay_id": "sha256:..."
              }
            }
          }
        },
        "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": "array",
                  "items": {
                    "type": "object"
                  },
                  "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
                },
                "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"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "8tosK4UvkrkhBq1fFquS4ecZKvHpeYtjCoMRMgMvcsQz",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x30Eab9013826eD708ec072AF66AE08f4B379FE07",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.aidatatools.dev/api",
      "tags": [
        "data-quality",
        "scraping",
        "cleaning",
        "deterministic",
        "json"
      ],
      "mimeType": "application/json",
      "description": "Data Quality Gate: deterministic dataset quality verdict",
      "serviceName": "AI Data Tools"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": [
              {
                "sku": "B0C1",
                "price": "12,99",
                "title": "Café Table Lamp & Shade"
              },
              {
                "sku": "B0C2",
                "price": null,
                "title": "N/A"
              }
            ],
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "score": 83.75,
              "checks": [
                {
                  "name": "text_cleanliness",
                  "detail": "2 of 30 values carry mojibake",
                  "status": "warn"
                }
              ],
              "verdict": "RELIABLE"
            }
          }
        },
        "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": "array",
                  "items": {
                    "type": "object"
                  },
                  "description": "The scraped data to process. A JSON array of objects, a single object, a CSV string or raw text are all accepted -- the endpoint detects the shape and gives the same shape back."
                },
                "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"
                }
              }
            }
          }
        }
      }
    },
    "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/data-quality-gate/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
08-11 · uptime 100.0% · 1574ms avg08-12 · uptime 100.0% · 1846ms avg08-13 · uptime 100.0% · 1846ms avg08-14 · uptime 100.0% · 2150ms avg08-15 · uptime 100.0% · 1801ms avg08-16 · uptime 100.0% · 1618ms avg08-17 · uptime 100.0% · 2162ms avg08-18 · uptime 100.0% · 2392ms avg08-19 · uptime 100.0% · 2432ms avg08-20 · uptime 100.0% · 2035ms avg08-21 · uptime 100.0% · 1675ms avg08-22 · uptime 100.0% · 1857ms avg08-23 · uptime 100.0% · 1870ms avg08-24 · uptime 100.0% · 1962ms avg08-25 · uptime 100.0% · 2067ms avg08-26 · uptime 100.0% · 2289ms avg08-27 · uptime 100.0% · 2437ms avg08-28 · uptime 100.0% · 940ms avg08-29 · uptime 100.0% · 1230ms avg08-30 · uptime 100.0% · 1170ms avg08-31 · uptime 100.0% · 1166ms avg09-01 · uptime 100.0% · 1136ms avg09-02 · uptime 100.0% · 1076ms avg09-03 · uptime 100.0% · 997ms avg09-04 · uptime 100.0% · 972ms avg09-05 · uptime 100.0% · 929ms avg09-06 · uptime 100.0% · 1050ms avg08-1109-06
30d UPTIME 100%
RESPONSE TIME
08-11 · 1574ms avg08-11 · 1574ms avg08-12 · 1846ms avg08-12 · 1846ms avg08-13 · 1846ms avg08-13 · 1846ms avg08-14 · 2150ms avg08-14 · 2150ms avg08-15 · 1801ms avg08-15 · 1801ms avg08-16 · 1618ms avg08-16 · 1618ms avg08-17 · 2162ms avg08-17 · 2162ms avg08-18 · 2392ms avg08-18 · 2392ms avg08-19 · 2432ms avg08-19 · 2432ms avg08-20 · 2035ms avg08-20 · 2035ms avg08-21 · 1675ms avg08-21 · 1675ms avg08-22 · 1857ms avg08-22 · 1857ms avg08-23 · 1870ms avg08-23 · 1870ms avg08-24 · 1962ms avg08-24 · 1962ms avg08-25 · 2067ms avg08-25 · 2067ms avg08-26 · 2289ms avg08-26 · 2289ms avg08-27 · 2437ms avg08-27 · 2437ms avg08-28 · 940ms avg08-28 · 940ms avg08-29 · 1230ms avg08-29 · 1230ms avg08-30 · 1170ms avg08-30 · 1170ms avg08-31 · 1166ms avg08-31 · 1166ms avg09-01 · 1136ms avg09-01 · 1136ms avg09-02 · 1076ms avg09-02 · 1076ms avg09-03 · 997ms avg09-03 · 997ms avg09-04 · 972ms avg09-04 · 972ms avg09-05 · 929ms avg09-05 · 929ms avg09-06 · 1050ms avg09-06 · 1050ms avg08-1109-06
AVG RESP 1669ms
PRICE (captured 402, USD)
08-11 · $0.0108-27 · $0.0409-06 · $0.04$0.0408-1109-06

Median across 3 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checks08-14 uptime: 100.0% compliance: 100% checks08-15 uptime: 100.0% compliance: 100% checks08-16 uptime: 100.0% compliance: 100% checks08-17 uptime: 100.0% compliance: 100% checks08-18 uptime: 100.0% compliance: 100% checks08-19 uptime: 100.0% compliance: 100% checks08-20 uptime: 100.0% compliance: 100% checks08-21 uptime: 100.0% compliance: 100% checks08-22 uptime: 100.0% compliance: 100% checks08-23 uptime: 100.0% compliance: 100% checks08-24 uptime: 100.0% compliance: 100% checks08-25 uptime: 100.0% compliance: 100% checks08-26 uptime: 100.0% compliance: 100% checks08-27 uptime: 100.0% compliance: 100% checks08-28 uptime: 100.0% compliance: 100% checks08-29 uptime: 100.0% compliance: 100% checks08-30 uptime: 100.0% compliance: 100% checks08-31 uptime: 100.0% compliance: 100% checks09-01 uptime: 100.0% compliance: 100% checks09-02 uptime: 100.0% compliance: 100% checks09-03 uptime: 100.0% compliance: 100% checks09-04 uptime: 100.0% compliance: 100% checks09-05 uptime: 100.0% compliance: 100% checks09-06 uptime: 100.0% compliance: 100% checksuptimecompliance08-1109-06

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

PILLARS OVER TIME (measured)
price percentile in Verification
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.
DISTINCT BUYERS
This service settles on a network x402-list does not measure yet, so distinct on-chain buyers are not counted here. Shown as unmeasured, not zero.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-06 · last up 2026-09-06

  • 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 (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 2243ms
● OK 382ms
● OK 302ms
● OK 453ms
● OK 2208ms
● OK 290ms
● OK 291ms
● OK 379ms
● OK 397ms
● OK 2447ms
● OK 370ms
● OK 251ms
● OK 263ms
● SLOW 2950ms
● OK 269ms
● OK 1925ms
● OK 166ms
● OK 241ms
18 of 2,330 checks · live count

EMBED THIS BADGE

Show that Data Quality Gate is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

Data Quality Gate listed on x402-list
status
Data Quality Gate uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/data-quality-gate?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/data-quality-gate.svg" alt="Data Quality Gate listed on x402-list" height="28">
</a>
// Markdown
[![Data Quality Gate on x402-list](https://x402-list.com/badge/data-quality-gate.svg)](https://x402-list.com/services/data-quality-gate?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/data-quality-gate?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/data-quality-gate.svg?data=uptime" alt="Data Quality Gate uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/data-quality-gate/update.