●

10x402

Verification PAYMENT-READY

payment-ready until 2026-09-19

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) · $2.51 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 #7 of 77 in Verification by measured score

What the score read on this service: status online, 100% uptime 30d, 507ms 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 77 listings, this one among them. That set is wider than the 77 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	93	100%	$1.0k
Rubric Protocol — Post-Quantum AI Attestation	strong	93	100%	$10.60
LION — Verified Company & Compliance Data	solid	89	100%	$7.06
767-2676.com - POPCORN	solid	88	100%	$0.03
IBANforge	solid	88	99.8%	$0.11

5 of 76 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: 507ms
avg response: 256ms
total checks: 2,052

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 (p15 in Verification)

price (min): $0.004
price (max): $0.10
category percentile (min): p15 in Verification
category percentile (max): p53 in Verification
endpoints / prices: 4 / 4
model: tiered
stability: 44%

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: 22d
registrar: Cloudflare, Inc.
hosting: custom
domain created: 2026-08-19

Identity facts, not a risk score.

traction $2.499 30d · 7 buyers · top buyer 91%

volume 30d: $2.499
buyers 30d: 7
settlements 30d: 37
measured since: 2026-08-20 (start of our harvest window)
last settlement: 2026-09-03
top buyer share: 91% of 30d volume
trend 7d vs 30d: 0.00x the 30d daily rate
networks: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time: $2.51
settlements all-time: 37
median settlement 30d: $0.02
max settlement 30d: $0.25
settled via: coinbase ($2.50, 37 tx)

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

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

4 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 3d ago (4 in 30d)

schema changed · 3d ago

schema removed POST /lint/envelope exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed POST /lint/one exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added POST /lint/envelope exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /lint/one exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema changed · 9d ago

schema added POST /lint exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added POST /lint/envelope exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /lint/envelope/one exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /lint/one exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

price changed · 13d ago

POST /lint/one · eip155:8453 · USDC: 8000 → 15000

price changed · 13d ago

POST /lint · eip155:8453 · USDC: 250000 → 100000

POST /lint/envelope · eip155:8453 · USDC: 100000 → 40000

POST /lint/envelope/one · eip155:8453 · USDC: 10000 → 4000

POST /lint/one · eip155:8453 · USDC: 20000 → 8000

Amounts are on-wire atomic units in the named asset.

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	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": "15000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "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
            }
          }
        }
      }
    },
    "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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "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\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":true,\"blockers\":[]},\"findings\":[],\"checks_run\":77}"
          }
        },
        "schema": {
          "type": "object",
          "$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
            }
          }
        }
      }
    },
    "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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "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
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "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\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":\"n/a\",\"blockers\":[\"V2_HEADER_PRESENT\"]},\"findings\":[{\"severity\":\"error\",\"code\":\"V2_HEADER_PRESENT\",\"message\":\"no PAYMENT-REQUIRED response header — this endpoint publishes no x402 v2 envelope.\",\"fix\":\"Add a PAYMENT-REQUIRED response header to the 402 carrying the standard-base64 JSON v2 envelope. This costs you DISCOVERY rather than payment, and the distinction is worth being precise about: @x402/core reads the header first but DOES fall back to a v1 body when there is none, so the current client generation can still pay you. What it cannot do is find you — CDP marks the PAYMENT-REQUIRED header a required indexing check, so a v1-only 402 is not catalogued at all, and a strictly-v2 client cannot pay it either. Keep the v1 body exactly as it is; the two versions share a 402 without either noticing the other.\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/[email protected] dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — [email protected] is still a live buyer population\"}]}],\"checks_run\":28}"
          }
        },
        "schema": {
          "type": "object",
          "$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
            }
          }
        }
      }
    },
    "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/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

30d UPTIME 100%

RESPONSE TIME

AVG RESP 257ms

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 2026-09-09 · last up 2026-09-12

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

12:40:10 UTC ● OK 246ms

12:24:10 UTC ● OK 228ms

12:08:11 UTC ● SLOW 417ms

11:52:11 UTC ● SLOW 480ms

11:36:11 UTC ● OK 320ms

11:20:07 UTC ● OK 335ms

11:04:06 UTC ● OK 344ms

10:48:06 UTC ● OK 351ms

10:32:04 UTC ● SLOW 498ms

10:16:03 UTC ● OK 179ms

10:00:06 UTC ● SLOW 432ms

09:44:05 UTC ● OK 383ms

09:28:04 UTC ● OK 334ms

09:12:06 UTC ● OK 325ms

08:56:06 UTC ● OK 381ms

08:40:05 UTC ● OK 323ms

08:24:06 UTC ● OK 335ms

08:08:06 UTC ● OK 266ms

EMBED THIS BADGE

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status

10x402 uptime on x402-list — live uptime

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</a>

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