●

10x402

Verification PAYMENT-READY

payment-ready until 2026-10-11

x402 conformance lint: 75 checks against your live 402 with a specific fix for each finding, plus a separate Bazaar-indexability verdict. Every check cites its source (spec, client code, or CDP validator). The service lints its own 402s in CI and pays over x402 itself (v1+v2 dual-stack). Open source: github.com/chronick/10x402

Pay from $0.004 to $0.10 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

measured since 2026-08-20 (start of our harvest window) · $2.55 all-time · settled via coinbase

BASE URL https://10x402.com │ WEBSITE https://10x402.com │ ENDPOINTS 4 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-08-20 │ MONITORED SINCE 2026-08-20

VERDICT

ranking generation 3

solid 88/100 #10 of 110 in Verification by measured score

What the score read on this service: status online, 100% uptime 30d, 477ms response p95, x402 compliance 14 of 14, $0.004 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 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 110 listings, this one among them. That set is wider than the 110 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
scvd.store — evidence observatory for the x402 economy	strong	94	100%	$1.1k
Rubric Protocol — Post-Quantum AI Attestation	solid	93	99.8%	$34.28
PHION Agent Services	solid	89	99.9%	$1.50
KushBitx AgentProof	solid	89	100%	$1.52
LION — Verified Company & Compliance Data	solid	89	100%	$5.72

5 of 109 other ranked services in Verification

ASSESSMENT

updated 51m 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: 100%
uptime 7d: 100%
uptime 30d: 100%
uptime 90d: 100%
response p95: 477ms
avg response: 302ms
total checks: 2,741

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 $0.004 to $0.10 (p20 in Verification)

price (min): $0.004
price (max): $0.10
category percentile (min): p20 in Verification
category percentile (max): p57 in Verification
endpoints / prices: 4 / 4
model: tiered
stability: 83%

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: 43d
registrar: Cloudflare, Inc.
hosting: custom
domain created: 2026-08-19

Identity facts, not a risk score.

traction $0.04 30d · 1 buyers · top buyer 100% (address, not entity)

volume 30d: $0.04
buyers 30d: 1
settlements 30d: 1
measured since: 2026-08-20 (start of our harvest window)
last settlement: 2026-09-20
top buyer share: 100% of 30d volume (address, not entity)
trend 7d vs 30d: 0.00x the 30d daily rate
networks: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time: $2.55
settlements all-time: 38
median settlement 30d: $0.04
max settlement 30d: $0.04
settled via: coinbase ($0.04, 1 tx)

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	PRICE	NETWORK	ASSET	402 CHANNEL
POST	/lint	$0.10	Base/Solana	USDC	header
POST	/lint/envelope	$0.04	Base/Solana	USDC	header
POST	/lint/envelope/one	$0.004	Base/Solana	USDC	header
POST	/lint/one	$0.015	Base/Solana	USDC	header

4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /lint 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://10x402.com/lint'

// 402 response (captured by monitor) · 4 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "payTo": "6Cg4g7rXQApimMc9wVJGLLZfHsvbwGpGrUpGDgyJ2RaP",
        "amount": "40000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://10x402.com/lint/envelope",
      "tags": [
        "x402",
        "lint",
        "conformance",
        "developer-tools"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Check a captured x402 402 for indexing and payment blockers — no fetch",
      "serviceName": "10x402"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": "{\"status\":402,\"headers\":{\"content-type\":\"application/json\"},\"body\":\"{\\\"x402Version\\\":1,\\\"accepts\\\":[{\\\"scheme\\\":\\\"exact\\\",\\\"network\\\":\\\"base\\\",\\\"maxAmountRequired\\\":\\\"1000\\\",\\\"resource\\\":\\\"https://example.com/api/thing\\\",\\\"description\\\":\\\"an example paid endpoint\\\",\\\"mimeType\\\":\\\"application/json\\\",\\\"payTo\\\":\\\"0x0000000000000000000000000000000000000001\\\",\\\"maxTimeoutSeconds\\\":60,\\\"asset\\\":\\\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\\\",\\\"extra\\\":{\\\"name\\\":\\\"USD Coin\\\",\\\"version\\\":\\\"2\\\"},\\\"outputSchema\\\":{\\\"input\\\":{\\\"type\\\":\\\"http\\\",\\\"method\\\":\\\"POST\\\",\\\"discoverable\\\":true,\\\"bodyType\\\":\\\"text\\\",\\\"description\\\":\\\"the request body\\\"},\\\"output\\\":{\\\"type\\\":\\\"string\\\",\\\"description\\\":\\\"the response body\\\"}}}]}\"}",
            "type": "http",
            "method": "POST",
            "bodyType": "text"
          },
          "output": {
            "type": "text",
            "format": "application/json",
            "example": "{\"grade\":\"A\",\"summary\":{\"versions_detected\":[1],\"payTo\":\"0x0000000000000000000000000000000000000001\",\"network\":\"base\",\"price\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":\"n/a\",\"blockers\":[\"V2_HEADER_PRESENT\"]},\"findings\":[{\"severity\":\"error\",\"code\":\"V2_HEADER_PRESENT\",\"message\":\"no PAYMENT-REQUIRED response header — this endpoint publishes no x402 v2 envelope.\",\"fix\":\"Add a PAYMENT-REQUIRED response header to the 402 carrying the standard-base64 JSON v2 envelope. This costs you DISCOVERY rather than payment, and the distinction is worth being precise about: @x402/core reads the header first but DOES fall back to a v1 body when there is none, so the current client generation can still pay you. What it cannot do is find you — CDP marks the PAYMENT-REQUIRED header a required indexing check, so a v1-only 402 is not catalogued at all, and a strictly-v2 client cannot pay it either. Keep the v1 body exactly as it is; the two versions share a 402 without either noticing the other.\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — [email protected] is still a live buyer population\"}]},{\"severity\":\"info\",\"code\":\"BILLING_TERMS_DISCLOSED\",\"message\":\"no machine-readable billing-terms object was found. Consulted: the 402 (accepts[].extra.billing_terms); /.well-known/x402 resources[].billing_terms (not supplied); OpenAPI x-billing-terms (not supplied). Prose in `description` was not parsed.\",\"fix\":\"Publish a billing-terms object with all four keys, in any ONE of: `accepts[].extra.billing_terms` in the 402 (always read), `resources[].billing_terms` in /.well-known/x402, or `x-billing-terms` on the OpenAPI operation (both read only when the caller supplies them). e.g. {\\\"billable_unit\\\":\\\"1 second\\\",\\\"hold\\\":\\\"the quote, released in 24h\\\",\\\"acceptance_observer\\\":\\\"the buyer\\\",\\\"silence_window\\\":\\\"72h\\\"}. Any JSON value counts; prose in `description` is not parsed. algonormative/10x402#10's block gives billable_unit and hold only: add acceptance_observer and silence_window. NOTHING REQUIRES THIS (no spec, client or registry): informational, moves neither verdict.\",\"core\":false,\"sources\":[{\"kind\":\"field-report\",\"ref\":\"Moltbook 92cd240a… (bitroadai), \\\"transport success is not billable completion\\\" — buyers asked for the minimum billable unit and what a hold covers\"},{\"kind\":\"field-report\",\"ref\":\"Moltbook 6868a451… / 2d2df453… (relayzero, @miacollective) — who observes acceptance, and how long silence counts as acceptance, as terms a buyer needs before paying\"},{\"kind\":\"house-opinion\",\"ref\":\"no spec requires these four, no client parses them, no registry demands them — this check can only REPORT. Key names from house PR algonormative/10x402#10\"},{\"kind\":\"spec\",\"ref\":\"specs/x402-specification-v2.md § 6.1 (Payment Flow Models), read 2026-09-09 — SILENT on all four\",\"context\":true}]}],\"checks_run\":29}"
          }
        },
        "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": "string",
                  "maxLength": 262144,
                  "description": "a JSON object: { \"status\": 402, \"headers\": { \"payment-required\": \"…\", … }, \"body\": \"…\" }, up to 256 KB"
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "type": "string",
                  "const": "POST"
                },
                "bodyType": {
                  "type": "string",
                  "const": "text"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type",
                "format"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "text"
                },
                "format": {
                  "type": "string",
                  "const": "application/json",
                  "description": "a JSON lint report: grade, summary, findings[] and checks_run"
                },
                "example": {
                  "type": "string",
                  "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full"
                }
              },
              "additionalProperties": false
            }
          }
        }
      },
      "origin_marker": {
        "header": "x-origin-marker"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "15000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "6Cg4g7rXQApimMc9wVJGLLZfHsvbwGpGrUpGDgyJ2RaP",
        "amount": "15000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://10x402.com/lint/one",
      "tags": [
        "x402",
        "lint",
        "conformance",
        "developer-tools"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Run ONE named check against a live endpoint",
      "serviceName": "10x402"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": "{\"url\":\"https://toolshed.lemon-agent.dev/convert/md-html\",\"method\":\"POST\",\"check\":\"V2_B64_URLSAFE\"}",
            "type": "http",
            "method": "POST",
            "bodyType": "text"
          },
          "output": {
            "type": "text",
            "format": "application/json",
            "example": "{\"check\":\"V2_B64_URLSAFE\",\"applied\":true,\"passed\":true,\"finding\":null,\"regime\":\"payment\",\"severity\":\"error\",\"core\":true,\"sources\":[{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/utils/index.js:133 — Base64EncodedRegex = /^[A-Za-z0-9+/]*={0,2}$/\"},{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/http/index.js:1778-1781 — the regex is tested on the RAW header, then it throws, before any decode\"},{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling — \\\"Base64-encoded\\\", SILENT on the alphabet\",\"context\":true}],\"summary\":{\"versions_detected\":[1,2],\"payTo\":\"0x0adc7adac7bbaffffbd73505711e42378c4f9f9e\",\"network\":\"eip155:8453\",\"price\":\"$0.001 (1000 atomic)\"},\"checks_run\":1}"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "string",
                  "maxLength": 262144,
                  "description": "a JSON object: { \"url\": \"https://…\", \"check\": \"V2_B64_URLSAFE\" } — exactly one check id from GET /check, plus optionally { \"method\": \"POST\" | \"GET\" }, up to 256 KB"
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "type": "string",
                  "const": "POST"
                },
                "bodyType": {
                  "type": "string",
                  "const": "text"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type",
                "format"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "text"
                },
                "format": {
                  "type": "string",
                  "const": "application/json",
                  "description": "a JSON single-check report: check, applied, passed, the finding with its fix (or null), regime, sources and the envelope summary"
                },
                "example": {
                  "type": "string",
                  "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full"
                }
              },
              "additionalProperties": false
            }
          }
        }
      },
      "origin_marker": {
        "header": "x-origin-marker"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "6Cg4g7rXQApimMc9wVJGLLZfHsvbwGpGrUpGDgyJ2RaP",
        "amount": "100000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://10x402.com/lint",
      "tags": [
        "x402",
        "lint",
        "conformance",
        "developer-tools"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Find conformance blockers to x402 indexing and payment on a live endpoint",
      "serviceName": "10x402"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": "{\"url\":\"https://toolshed.lemon-agent.dev/convert/md-html\",\"method\":\"POST\"}",
            "type": "http",
            "method": "POST",
            "bodyType": "text"
          },
          "output": {
            "type": "text",
            "format": "application/json",
            "example": "{\"grade\":\"A\",\"summary\":{\"versions_detected\":[1,2],\"payTo\":\"0x0adc7adac7bbaffffbd73505711e42378c4f9f9e\",\"network\":\"eip155:8453\",\"price\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":true,\"blockers\":[]},\"findings\":[{\"severity\":\"info\",\"code\":\"BILLING_TERMS_DISCLOSED\",\"message\":\"no machine-readable billing-terms object was found. Consulted: the 402 (accepts[].extra.billing_terms); /.well-known/x402 resources[].billing_terms (not supplied); OpenAPI x-billing-terms (not supplied). Prose in `description` was not parsed.\",\"fix\":\"Publish a billing-terms object with all four keys, in any ONE of: `accepts[].extra.billing_terms` in the 402 (always read), `resources[].billing_terms` in /.well-known/x402, or `x-billing-terms` on the OpenAPI operation (both read only when the caller supplies them). e.g. {\\\"billable_unit\\\":\\\"1 second\\\",\\\"hold\\\":\\\"the quote, released in 24h\\\",\\\"acceptance_observer\\\":\\\"the buyer\\\",\\\"silence_window\\\":\\\"72h\\\"}. Any JSON value counts; prose in `description` is not parsed. algonormative/10x402#10's block gives billable_unit and hold only: add acceptance_observer and silence_window. NOTHING REQUIRES THIS (no spec, client or registry): informational, moves neither verdict.\",\"core\":false,\"sources\":[{\"kind\":\"field-report\",\"ref\":\"Moltbook 92cd240a… (bitroadai), \\\"transport success is not billable completion\\\" — buyers asked for the minimum billable unit and what a hold covers\"},{\"kind\":\"field-report\",\"ref\":\"Moltbook 6868a451… / 2d2df453… (relayzero, @miacollective) — who observes acceptance, and how long silence counts as acceptance, as terms a buyer needs before paying\"},{\"kind\":\"house-opinion\",\"ref\":\"no spec requires these four, no client parses them, no registry demands them — this check can only REPORT. Key names from house PR algonormative/10x402#10\"},{\"kind\":\"spec\",\"ref\":\"specs/x402-specification-v2.md § 6.1 (Payment Flow Models), read 2026-09-09 — SILENT on all four\",\"context\":true}]}],\"checks_run\":78}"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "string",
                  "maxLength": 262144,
                  "description": "a JSON object: { \"url\": \"https://…\" } and optionally { \"method\": \"POST\" | \"GET\" }, default POST, up to 256 KB"
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "type": "string",
                  "const": "POST"
                },
                "bodyType": {
                  "type": "string",
                  "const": "text"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type",
                "format"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "text"
                },
                "format": {
                  "type": "string",
                  "const": "application/json",
                  "description": "a JSON lint report: grade, summary, findings[] and checks_run"
                },
                "example": {
                  "type": "string",
                  "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full"
                }
              },
              "additionalProperties": false
            }
          }
        }
      },
      "origin_marker": {
        "header": "x-origin-marker"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "4000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "6Cg4g7rXQApimMc9wVJGLLZfHsvbwGpGrUpGDgyJ2RaP",
        "amount": "4000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://10x402.com/lint/envelope/one",
      "tags": [
        "x402",
        "lint",
        "conformance",
        "developer-tools"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Run ONE named check against a response you paste",
      "serviceName": "10x402"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": "{\"status\":402,\"headers\":{\"content-type\":\"application/json\"},\"body\":\"{\\\"x402Version\\\":1,\\\"accepts\\\":[{\\\"scheme\\\":\\\"exact\\\",\\\"network\\\":\\\"base\\\",\\\"maxAmountRequired\\\":\\\"1000\\\",\\\"resource\\\":\\\"https://example.com/api/thing\\\",\\\"description\\\":\\\"an example paid endpoint\\\",\\\"mimeType\\\":\\\"application/json\\\",\\\"payTo\\\":\\\"0x0000000000000000000000000000000000000001\\\",\\\"maxTimeoutSeconds\\\":60,\\\"asset\\\":\\\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\\\",\\\"extra\\\":{\\\"name\\\":\\\"USD Coin\\\",\\\"version\\\":\\\"2\\\"},\\\"outputSchema\\\":{\\\"input\\\":{\\\"type\\\":\\\"http\\\",\\\"method\\\":\\\"POST\\\",\\\"discoverable\\\":true,\\\"bodyType\\\":\\\"text\\\",\\\"description\\\":\\\"the request body\\\"},\\\"output\\\":{\\\"type\\\":\\\"string\\\",\\\"description\\\":\\\"the response body\\\"}}}]}\",\"check\":\"V2_HEADER_PRESENT\"}",
            "type": "http",
            "method": "POST",
            "bodyType": "text"
          },
          "output": {
            "type": "text",
            "format": "application/json",
            "example": "{\"check\":\"V2_HEADER_PRESENT\",\"applied\":true,\"passed\":false,\"finding\":{\"severity\":\"error\",\"code\":\"V2_HEADER_PRESENT\",\"message\":\"no PAYMENT-REQUIRED response header — this endpoint publishes no x402 v2 envelope.\",\"fix\":\"Add a PAYMENT-REQUIRED response header to the 402 carrying the standard-base64 JSON v2 envelope. This costs you DISCOVERY rather than payment, and the distinction is worth being precise about: @x402/core reads the header first but DOES fall back to a v1 body when there is none, so the current client generation can still pay you. What it cannot do is find you — CDP marks the PAYMENT-REQUIRED header a required indexing check, so a v1-only 402 is not catalogued at all, and a strictly-v2 client cannot pay it either. Keep the v1 body exactly as it is; the two versions share a 402 without either noticing the other.\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — [email protected] is still a live buyer population\"}]},\"regime\":\"bazaar\",\"severity\":\"error\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — [email protected] is still a live buyer population\"}],\"summary\":{\"versions_detected\":[1],\"payTo\":\"0x0000000000000000000000000000000000000001\",\"network\":\"base\",\"price\":\"$0.001 (1000 atomic)\"},\"checks_run\":1}"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "string",
                  "maxLength": 262144,
                  "description": "a JSON object: { \"status\": 402, \"headers\": { … }, \"body\": \"…\", \"check\": \"V2_B64_URLSAFE\" } — exactly one check id from GET /check, up to 256 KB"
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "type": "string",
                  "const": "POST"
                },
                "bodyType": {
                  "type": "string",
                  "const": "text"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type",
                "format"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "text"
                },
                "format": {
                  "type": "string",
                  "const": "application/json",
                  "description": "a JSON single-check report: check, applied, passed, the finding with its fix (or null), regime, sources and the envelope summary"
                },
                "example": {
                  "type": "string",
                  "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full"
                }
              },
              "additionalProperties": false
            }
          }
        }
      },
      "origin_marker": {
        "header": "x-origin-marker"
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the today (UTC) selector: uptime, response time, volume and buyers show the current UTC day so far, price and sub-scores the last 24 hours; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/10x402/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

TODAY (UTC) UPTIME 100%

RESPONSE TIME

AVG RESP 302ms

PRICE (captured 402, USD)

Median across 4 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)

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)

DISTINCT BUYERS

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-23 · last up 2026-10-04

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

15:50:21 UTC ● OK 141ms

15:34:21 UTC ● OK 113ms

15:18:17 UTC ● OK 177ms

15:02:19 UTC ● OK 141ms

14:46:21 UTC ● OK 138ms

14:30:20 UTC ● OK 109ms

14:14:19 UTC ● OK 176ms

13:58:19 UTC ● OK 128ms

13:42:19 UTC ● OK 123ms

13:25:17 UTC ● OK 127ms

13:09:21 UTC ● OK 166ms

12:53:18 UTC ● OK 101ms

12:37:17 UTC ● OK 121ms

12:21:18 UTC ● OK 175ms

12:05:20 UTC ● OK 128ms

11:49:19 UTC ● OK 139ms

11:33:18 UTC ● OK 115ms

11:17:17 UTC ● OK 125ms

EMBED THIS BADGE

Show that 10x402 is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

status

10x402 uptime on x402-list — live uptime

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// HTML · live uptime variant

<a href="https://x402-list.com/services/10x402?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/10x402.svg?data=uptime" alt="10x402 uptime on x402-list" height="28">
</a>

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