x402 List

x402 Protocol Service Directory

Canu Verify

Verification PAYMENT-READY

payment-ready until 2026-08-14

Machine-first verification APIs for autonomous agents: deterministic MCP package security audits, isolated website and WebGL release QA, and structured invoice normalization or OCR verification with signed technical receipts.

Pay from $0.29 to $5.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-03 · no on-chain settlement recorded yet

BASE URL https://api.canuverify.com WEBSITE https://api.canuverify.com ENDPOINTS 5 NETWORK Base ASSET USDC MEMBER SINCE 2026-08-03 MONITORED SINCE 2026-08-03

ASSESSMENT

updated 35m ago

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

reliability 92.4%
uptime 24h
0%
uptime 7d
71.2%
uptime 30d
92.4%
uptime 90d
92.4%
response p95
231ms
avg response
171ms
total checks
436

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 $0.29 to $5.00 (p86 in Verification)
price (min)
$0.29
price (max)
$5.00
category percentile (min)
p86 in Verification
category percentile (max)
p99 in Verification
endpoints / prices
5 / 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
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
first settlement
---
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 DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /v1/x402/services/document.invoice.verify $0.30 Base USDC header
POST /v1/x402/services/document.structured $0.30 Base USDC header
POST /v1/x402/services/mcp.audit.deep $2.99 Base USDC header
POST /v1/x402/services/mcp.audit.quick $0.29 Base USDC header
POST /v1/x402/services/release.qa.webgl $5.00 Base USDC header
5 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /v1/x402/services/document.invoice.verify returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://api.canuverify.com/v1/x402/services/document.invoice.verify'
// 402 response (captured by monitor) · 5 payloads · click to expand
[
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "canu": {
            "serviceId": "mcp.audit.quick",
            "challengeId": "pch_8dd122a72cf1a318c7af0eac9b",
            "directRequestHash": "638dd86fbc70439874108a63e23c59f378a42d60e575974475172b5b78da69cf"
          },
          "name": "USDC",
          "version": "2",
          "serviceName": "Canu Verify"
        },
        "payTo": "0x0bac88e8B47D9F2dC38E66dB9dA4b41032d24065",
        "amount": "290000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.canuverify.com/v1/x402/services/mcp.audit.quick",
      "tags": [
        "security",
        "mcp-security-audit",
        "prompt-injection-detection",
        "secret-detection",
        "permission-review"
      ],
      "mimeType": "application/json",
      "description": "MCP Audit Quick: Deterministic pre-install security audit for MCP, skill and package manifests. Detects prompt-injection and secret-exfiltration language, broad permissions, embedded secrets and unsafe lifecycle scripts without executing untrusted code.",
      "serviceName": "Canu Verify"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "options": {},
              "filename": "mcp.json",
              "content_text": "{\"mcpServers\":{}}",
              "content_type": "application/json",
              "wait_seconds": 15
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "state": "succeeded",
              "job_id": "job_mcp_audit_quick_example",
              "status": "completed",
              "service_id": "mcp.audit.quick"
            }
          }
        },
        "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",
                  "oneOf": [
                    {
                      "not": {
                        "required": [
                          "content_base64"
                        ]
                      },
                      "required": [
                        "content_text"
                      ]
                    },
                    {
                      "not": {
                        "required": [
                          "content_text"
                        ]
                      },
                      "required": [
                        "content_base64",
                        "content_type",
                        "filename"
                      ]
                    }
                  ],
                  "properties": {
                    "credit": {
                      "type": "object",
                      "required": [
                        "scheme",
                        "token"
                      ],
                      "properties": {
                        "token": {
                          "type": "string",
                          "maxLength": 192,
                          "minLength": 1
                        },
                        "scheme": {
                          "const": "canu_service_credit_v1"
                        }
                      },
                      "description": "Closed-loop Canu Verify compensation credit; do not combine with PAYMENT-SIGNATURE or rail",
                      "additionalProperties": false
                    },
                    "options": {
                      "type": "object",
                      "additionalProperties": true
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 255,
                      "minLength": 1
                    },
                    "content_text": {
                      "type": "string",
                      "maxLength": 2000000
                    },
                    "content_type": {
                      "type": "string",
                      "maxLength": 128,
                      "minLength": 1
                    },
                    "wait_seconds": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 0
                    },
                    "content_base64": {
                      "type": "string",
                      "maxLength": 2666671,
                      "contentEncoding": "base64"
                    }
                  },
                  "description": "Submit one paid job for mcp.audit.quick",
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "job_id",
                    "service_id"
                  ],
                  "properties": {
                    "state": {
                      "type": "string"
                    },
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "enum": [
                        "accepted",
                        "completed",
                        "failed",
                        "compensated",
                        "artifact"
                      ]
                    },
                    "service_id": {
                      "type": "string"
                    }
                  },
                  "description": "Compact PAYMENT-REQUIRED projection; the 402 JSON body and canonical OpenAPI publish the complete response contract.",
                  "additionalProperties": true
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "canu": {
            "serviceId": "mcp.audit.deep",
            "challengeId": "pch_2a7383a57633eef0e14dd91f57",
            "directRequestHash": "32f124a3f937bbbbd4657e0ea21852e21587e40be40d444ed1d8c5a1af4e540f"
          },
          "name": "USDC",
          "version": "2",
          "serviceName": "Canu Verify"
        },
        "payTo": "0x0bac88e8B47D9F2dC38E66dB9dA4b41032d24065",
        "amount": "2990000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.canuverify.com/v1/x402/services/mcp.audit.deep",
      "tags": [
        "security",
        "mcp-deep-security",
        "supply-chain-risk",
        "deep-secret-analysis",
        "dependency-audit"
      ],
      "mimeType": "application/json",
      "description": "MCP Audit Deep: Deep deterministic supply-chain audit for MCP and agent packages. Expands source, dependency, secret, install-script and configuration analysis with evidence-rich findings, without executing untrusted code.",
      "serviceName": "Canu Verify"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "options": {},
              "filename": "mcp.json",
              "content_text": "{\"mcpServers\":{}}",
              "content_type": "application/json",
              "wait_seconds": 15
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "state": "succeeded",
              "job_id": "job_mcp_audit_deep_example",
              "status": "completed",
              "service_id": "mcp.audit.deep"
            }
          }
        },
        "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",
                  "oneOf": [
                    {
                      "not": {
                        "required": [
                          "content_base64"
                        ]
                      },
                      "required": [
                        "content_text"
                      ]
                    },
                    {
                      "not": {
                        "required": [
                          "content_text"
                        ]
                      },
                      "required": [
                        "content_base64",
                        "content_type",
                        "filename"
                      ]
                    }
                  ],
                  "properties": {
                    "credit": {
                      "type": "object",
                      "required": [
                        "scheme",
                        "token"
                      ],
                      "properties": {
                        "token": {
                          "type": "string",
                          "maxLength": 192,
                          "minLength": 1
                        },
                        "scheme": {
                          "const": "canu_service_credit_v1"
                        }
                      },
                      "description": "Closed-loop Canu Verify compensation credit; do not combine with PAYMENT-SIGNATURE or rail",
                      "additionalProperties": false
                    },
                    "options": {
                      "type": "object",
                      "additionalProperties": true
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 255,
                      "minLength": 1
                    },
                    "content_text": {
                      "type": "string",
                      "maxLength": 5000000
                    },
                    "content_type": {
                      "type": "string",
                      "maxLength": 128,
                      "minLength": 1
                    },
                    "wait_seconds": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 0
                    },
                    "content_base64": {
                      "type": "string",
                      "maxLength": 6666671,
                      "contentEncoding": "base64"
                    }
                  },
                  "description": "Submit one paid job for mcp.audit.deep",
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "job_id",
                    "service_id"
                  ],
                  "properties": {
                    "state": {
                      "type": "string"
                    },
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "enum": [
                        "accepted",
                        "completed",
                        "failed",
                        "compensated",
                        "artifact"
                      ]
                    },
                    "service_id": {
                      "type": "string"
                    }
                  },
                  "description": "Compact PAYMENT-REQUIRED projection; the 402 JSON body and canonical OpenAPI publish the complete response contract.",
                  "additionalProperties": true
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "canu": {
            "serviceId": "release.qa.webgl",
            "challengeId": "pch_f49f084b88441f4be70c0b38b9",
            "directRequestHash": "301267b80f01a43a138d6c6ab3437e49f8d43ff04f1c4390e03145d4c2c4481f"
          },
          "name": "USDC",
          "version": "2",
          "serviceName": "Canu Verify"
        },
        "payTo": "0x0bac88e8B47D9F2dC38E66dB9dA4b41032d24065",
        "amount": "5000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.canuverify.com/v1/x402/services/release.qa.webgl",
      "tags": [
        "quality",
        "webgl-qa",
        "canvas-rendering",
        "gpu-browser-test",
        "context-loss"
      ],
      "mimeType": "application/json",
      "description": "Release QA WebGL: Run isolated desktop and mobile Chromium QA for WebGL and canvas applications. Checks rendering support, canvas visibility, context loss, console and network failures, responsive layout, screenshots and evidence.",
      "serviceName": "Canu Verify"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": {
                "target_url": "https://example.com"
              },
              "options": {},
              "wait_seconds": 15
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "state": "succeeded",
              "job_id": "job_release_qa_webgl_example",
              "status": "completed",
              "service_id": "release.qa.webgl"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "input"
                  ],
                  "properties": {
                    "input": {
                      "type": "object",
                      "required": [
                        "target_url"
                      ],
                      "properties": {
                        "settle_ms": {
                          "type": "integer",
                          "maximum": 10000,
                          "minimum": 0
                        },
                        "target_url": {
                          "type": "string",
                          "format": "uri",
                          "maxLength": 2048
                        },
                        "max_requests": {
                          "type": "integer",
                          "maximum": 500,
                          "minimum": 1
                        },
                        "allowed_hosts": {
                          "type": "array",
                          "items": {
                            "type": "string",
                            "description": "Exact hostname; no wildcard"
                          },
                          "maxItems": 16
                        },
                        "max_transfer_bytes": {
                          "type": "integer",
                          "maximum": 104857600,
                          "minimum": 65536
                        }
                      },
                      "additionalProperties": false
                    },
                    "credit": {
                      "type": "object",
                      "required": [
                        "scheme",
                        "token"
                      ],
                      "properties": {
                        "token": {
                          "type": "string",
                          "maxLength": 192,
                          "minLength": 1
                        },
                        "scheme": {
                          "const": "canu_service_credit_v1"
                        }
                      },
                      "description": "Closed-loop Canu Verify compensation credit; do not combine with PAYMENT-SIGNATURE or rail",
                      "additionalProperties": false
                    },
                    "options": {
                      "type": "object",
                      "additionalProperties": true
                    },
                    "wait_seconds": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 0
                    }
                  },
                  "description": "Submit one paid job for release.qa.webgl",
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "job_id",
                    "service_id"
                  ],
                  "properties": {
                    "state": {
                      "type": "string"
                    },
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "enum": [
                        "accepted",
                        "completed",
                        "failed",
                        "compensated",
                        "artifact"
                      ]
                    },
                    "service_id": {
                      "type": "string"
                    }
                  },
                  "description": "Compact PAYMENT-REQUIRED projection; the 402 JSON body and canonical OpenAPI publish the complete response contract.",
                  "additionalProperties": true
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "canu": {
            "serviceId": "document.structured",
            "challengeId": "pch_8db1fe6f4ad8f98f352f57853e",
            "directRequestHash": "043a4289f1b615ba9f70d2bdca50d670bd543c050c4cb656731749e761318006"
          },
          "name": "USDC",
          "version": "2",
          "serviceName": "Canu Verify"
        },
        "payTo": "0x0bac88e8B47D9F2dC38E66dB9dA4b41032d24065",
        "amount": "300000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.canuverify.com/v1/x402/services/document.structured",
      "tags": [
        "documents",
        "ubl-invoice",
        "costa-rica-einvoice",
        "json-invoice",
        "xml-invoice"
      ],
      "mimeType": "application/json",
      "description": "Structured Document Normalization: Parse and normalize UBL, Costa Rica electronic invoices and common invoice JSON or XML into provenance-tagged fields, then verify line, tax and total arithmetic without OCR.",
      "serviceName": "Canu Verify"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "options": {},
              "filename": "invoice.json",
              "content_text": "{\"invoice_number\":\"001\",\"total\":\"100.00\"}",
              "content_type": "application/json",
              "wait_seconds": 15
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "state": "succeeded",
              "job_id": "job_document_structured_example",
              "status": "completed",
              "service_id": "document.structured"
            }
          }
        },
        "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",
                  "oneOf": [
                    {
                      "not": {
                        "required": [
                          "content_base64"
                        ]
                      },
                      "required": [
                        "content_text"
                      ]
                    },
                    {
                      "not": {
                        "required": [
                          "content_text"
                        ]
                      },
                      "required": [
                        "content_base64",
                        "content_type",
                        "filename"
                      ]
                    }
                  ],
                  "properties": {
                    "credit": {
                      "type": "object",
                      "required": [
                        "scheme",
                        "token"
                      ],
                      "properties": {
                        "token": {
                          "type": "string",
                          "maxLength": 192,
                          "minLength": 1
                        },
                        "scheme": {
                          "const": "canu_service_credit_v1"
                        }
                      },
                      "description": "Closed-loop Canu Verify compensation credit; do not combine with PAYMENT-SIGNATURE or rail",
                      "additionalProperties": false
                    },
                    "options": {
                      "type": "object",
                      "additionalProperties": true
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 255,
                      "minLength": 1
                    },
                    "content_text": {
                      "type": "string",
                      "maxLength": 5000000
                    },
                    "content_type": {
                      "type": "string",
                      "maxLength": 128,
                      "minLength": 1
                    },
                    "wait_seconds": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 0
                    },
                    "content_base64": {
                      "type": "string",
                      "maxLength": 6666671,
                      "contentEncoding": "base64"
                    }
                  },
                  "description": "Submit one paid job for document.structured",
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "job_id",
                    "service_id"
                  ],
                  "properties": {
                    "state": {
                      "type": "string"
                    },
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "enum": [
                        "accepted",
                        "completed",
                        "failed",
                        "compensated",
                        "artifact"
                      ]
                    },
                    "service_id": {
                      "type": "string"
                    }
                  },
                  "description": "Compact PAYMENT-REQUIRED projection; the 402 JSON body and canonical OpenAPI publish the complete response contract.",
                  "additionalProperties": true
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "canu": {
            "serviceId": "document.invoice.verify",
            "challengeId": "pch_235c9b14dabf5a1f4b9f971e5e",
            "directRequestHash": "2954466e8994c5c48f277260933244ab80f8abd3533986532065df5eee1ae3b1"
          },
          "name": "USDC",
          "version": "2",
          "serviceName": "Canu Verify"
        },
        "payTo": "0x0bac88e8B47D9F2dC38E66dB9dA4b41032d24065",
        "amount": "300000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.canuverify.com/v1/x402/services/document.invoice.verify",
      "tags": [
        "documents",
        "invoice-ocr",
        "pdf-invoice-extraction",
        "invoice-math-verification",
        "line-item-extraction"
      ],
      "mimeType": "application/json",
      "description": "Document & Invoice Intelligence: Extract invoice fields from JSON, XML, text-native or scanned PDFs and images using bounded OCR when required. Returns supplier, line items, currency, totals, field provenance, security findings and deterministic arithmetic verification.",
      "serviceName": "Canu Verify"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "options": {},
              "filename": "invoice.json",
              "content_text": "{\"document_type\":\"invoice\",\"invoice_number\":\"001\",\"total\":\"100.00\"}",
              "content_type": "application/json",
              "wait_seconds": 15
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "state": "succeeded",
              "job_id": "job_document_invoice_verify_example",
              "status": "completed",
              "service_id": "document.invoice.verify"
            }
          }
        },
        "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",
                  "oneOf": [
                    {
                      "not": {
                        "required": [
                          "content_base64"
                        ]
                      },
                      "required": [
                        "content_text"
                      ]
                    },
                    {
                      "not": {
                        "required": [
                          "content_text"
                        ]
                      },
                      "required": [
                        "content_base64",
                        "content_type",
                        "filename"
                      ]
                    }
                  ],
                  "properties": {
                    "credit": {
                      "type": "object",
                      "required": [
                        "scheme",
                        "token"
                      ],
                      "properties": {
                        "token": {
                          "type": "string",
                          "maxLength": 192,
                          "minLength": 1
                        },
                        "scheme": {
                          "const": "canu_service_credit_v1"
                        }
                      },
                      "description": "Closed-loop Canu Verify compensation credit; do not combine with PAYMENT-SIGNATURE or rail",
                      "additionalProperties": false
                    },
                    "options": {
                      "type": "object",
                      "additionalProperties": true
                    },
                    "filename": {
                      "type": "string",
                      "maxLength": 255,
                      "minLength": 1
                    },
                    "content_text": {
                      "type": "string",
                      "maxLength": 5000000
                    },
                    "content_type": {
                      "type": "string",
                      "maxLength": 128,
                      "minLength": 1
                    },
                    "wait_seconds": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 0
                    },
                    "content_base64": {
                      "type": "string",
                      "maxLength": 6666671,
                      "contentEncoding": "base64"
                    }
                  },
                  "description": "Submit one paid job for document.invoice.verify",
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "status",
                    "job_id",
                    "service_id"
                  ],
                  "properties": {
                    "state": {
                      "type": "string"
                    },
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "enum": [
                        "accepted",
                        "completed",
                        "failed",
                        "compensated",
                        "artifact"
                      ]
                    },
                    "service_id": {
                      "type": "string"
                    }
                  },
                  "description": "Compact PAYMENT-REQUIRED projection; the 402 JSON body and canonical OpenAPI publish the complete response contract.",
                  "additionalProperties": true
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/canu-verify/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
08-07 · uptime 90.8% · 157ms avg08-08 · uptime 0.0%08-09 · uptime 0.0%08-10 · uptime 0.0%08-11 · uptime 0.0%08-12 · uptime 0.0%08-13 · uptime 0.0%08-03 · uptime 98.2% · 181ms avg08-04 · uptime 100.0% · 210ms avg08-05 · uptime 100.0% · 170ms avg08-06 · uptime 100.0% · 138ms avg08-07 · uptime 90.8% · 157ms avg08-08 · uptime 0.0%08-09 · uptime 0.0%08-10 · uptime 0.0%08-11 · uptime 0.0%08-12 · uptime 0.0%08-13 · uptime 0.0%08-0308-13
90d UPTIME 92.4%
RESPONSE TIME
08-03 · 181ms avg08-03 · 181ms avg08-04 · 210ms avg08-04 · 210ms avg08-05 · 170ms avg08-05 · 170ms avg08-06 · 138ms avg08-06 · 138ms avg08-07 · 157ms avg08-07 · 157ms avg08-08 · 0ms avg08-08 · 0ms avg08-09 · 0ms avg08-09 · 0ms avg08-10 · 0ms avg08-10 · 0ms avg08-11 · 0ms avg08-11 · 0ms avg08-12 · 0ms avg08-12 · 0ms avg08-13 · 0ms avg08-13 · 0ms avg08-0308-13
AVG RESP 171ms
PRICE (captured 402, USD)
08-03 · $0.3008-13 · $0.30$0.3008-0308-13

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

SUB-SCORES (uptime + x402 compliance)
08-03 uptime: 97.9% compliance: 100% checks08-04 uptime: 99.3% compliance: 100% checks08-05 uptime: 99.6% compliance: 100% checks08-06 uptime: 99.7% compliance: 100% checks08-07 uptime: 99.7% compliance: 100% checks08-08 uptime: 96.6% compliance: 100% checks08-09 uptime: 95.7% compliance: 100% checks08-10 uptime: 94.8% compliance: 100% checks08-11 uptime: 93.9% compliance: 100% checks08-12 uptime: 93.1% compliance: 100% checks08-13 uptime: 92.4% compliance: 100% checksuptimecompliance08-0308-13

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

PILLARS OVER TIME (measured)

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)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-03 · last up 2026-08-07

  • 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
○ DOWN 33ms network: SSRF: resolved to a private address
○ DOWN 175ms network: SSRF: resolved to a private address
○ DOWN 18ms network: SSRF: resolved to a private address
○ DOWN 25ms network: SSRF: resolved to a private address
○ DOWN 82ms network: SSRF: resolved to a private address
○ DOWN 244ms network: SSRF: resolved to a private address
○ DOWN 37ms network: SSRF: resolved to a private address
○ DOWN 21ms network: SSRF: resolved to a private address
○ DOWN 25ms network: SSRF: resolved to a private address
○ DOWN 21ms network: SSRF: resolved to a private address
○ DOWN 19ms network: SSRF: resolved to a private address
○ DOWN 30ms network: SSRF: resolved to a private address
○ DOWN 49ms network: SSRF: resolved to a private address
○ DOWN 40ms network: SSRF: resolved to a private address
○ DOWN 158ms network: SSRF: resolved to a private address
○ DOWN 187ms network: SSRF: resolved to a private address
○ DOWN 23ms network: SSRF: resolved to a private address
○ DOWN 36ms network: SSRF: resolved to a private address

EMBED THIS BADGE

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

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RUN THIS SERVICE?

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[ update this listing ]

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