●

10x402

Verification PAYMENT-READY

payment-ready until 2026-08-27

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 $0.01 to $0.25 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-20 · no on-chain settlement recorded yet

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

ASSESSMENT

updated 2h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%

uptime 24h: -
uptime 7d: -
uptime 30d: -
uptime 90d: -
response p95: 34ms
avg response: 34ms
total checks: 1

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

compliance A (14/14)

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

jump to compliance checklist

price $0.01 to $0.25 (p39 in Verification)

price (min): $0.01
price (max): $0.25
category percentile (min): p39 in Verification
category percentile (max): p57 in Verification
endpoints / prices: 4 / 4
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: 0d
registrar: Cloudflare, Inc.
hosting: custom
domain created: 2026-08-19

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers

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

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

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

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	$0.25	Base	USDC	header
POST	/lint/envelope	$0.10	Base	USDC	header
POST	/lint/envelope/one	$0.01	Base	USDC	header
POST	/lint/one	$0.02	Base	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": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "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\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":true,\"blockers\":[]},\"findings\":[],\"checks_run\":72}"
          }
        },
        "schema": {
          "type": "object",
          "$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"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "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\"}],\"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"
                }
              },
              "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
      }
    ],
    "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\":\"$0.001 (1000 atomic)\",\"bazaar_ready\":\"n/a\",\"blockers\":[\"V2_HEADER_PRESENT\"]},\"findings\":[{\"severity\":\"error\",\"code\":\"V2_HEADER_PRESENT\",\"message\":\"no PAYMENT-REQUIRED response header — this endpoint publishes no x402 v2 envelope.\",\"fix\":\"Add a PAYMENT-REQUIRED response header to the 402 carrying the standard-base64 JSON v2 envelope. This costs you DISCOVERY rather than payment, and the distinction is worth being precise about: @x402/core reads the header first but DOES fall back to a v1 body when there is none, so the current client generation can still pay you. What it cannot do is find you — CDP marks the PAYMENT-REQUIRED header a required indexing check, so a v1-only 402 is not catalogued at all, and a strictly-v2 client cannot pay it either. Keep the v1 body exactly as it is; the two versions share a 402 without either noticing the other.\",\"core\":false}],\"checks_run\":28}"
          }
        },
        "schema": {
          "type": "object",
          "$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"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "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},\"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"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d 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

7d UPTIME 100%

RESPONSE TIME

AVG RESP 182ms

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

VOLUME (on-chain settlement, USD)

DISTINCT BUYERS

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-20 · last up 2026-08-20

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 (9) live · click to expand

TIME STATUS RESP CAUSE

12:00:01 UTC ● OK 238ms

11:44:00 UTC ● OK 93ms

11:28:00 UTC ● OK 180ms

11:12:01 UTC ● SLOW 325ms

10:56:01 UTC ● SLOW 322ms

10:40:00 UTC ● OK 92ms

10:24:01 UTC ● OK 270ms

10:08:00 UTC ● OK 87ms

09:52:00 UTC ● OK 34ms

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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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/10x402/update.