{
  "x402Version": 2,
  "id": 40678,
  "slug": "40678",
  "resource": "https://dappgrade.vercel.app/v1/score",
  "description": "dappgrade score — front-end integrity verdict for an onchain app, looked up by contract address. Inspects the app's public web front-end, not contract bytecode or admin control. Returns ok / caution / avoid / unknown with the coverage the verdict rests on.",
  "type": "http",
  "serviceName": "dappgrade",
  "resourceType": "Travel",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x4a0aed4ce878e44ef922941f2b06137bc0b69b69",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 120
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "coverage": {
            "description": "0..1 fraction of the rubric that actually ran; meaningless to read score without it",
            "type": "number"
          },
          "flags": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "freshness": {
            "description": "checked_at/age_seconds/stale. Pass max_age=<seconds> to get `unknown` + STALE_FOR_CALLER instead of an old answer — the observation still travels, so that response is billed normally. The scored fields are absent entirely (not null) on an `unknown` where we have no answer, and that one is free.",
            "type": [
              "object",
              "null"
            ]
          },
          "reasons": {
            "description": "stable machine-readable causes behind the verdict; see /v1/methodology → reason_codes",
            "items": {
              "properties": {
                "check": {
                  "description": "on CHECK_FAILED",
                  "type": "string"
                },
                "code": {
                  "type": "string"
                },
                "detail": {
                  "type": "string"
                },
                "flag": {
                  "description": "on CRITICAL_FLAG",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": "array"
          },
          "score": {
            "type": [
              "integer",
              "null"
            ]
          },
          "tier": {
            "type": [
              "integer",
              "null"
            ]
          },
          "verdict": {
            "description": "decision-shaped: ok = proceed, caution = hold, avoid = abort, unknown = not rated (never read as safe)",
            "enum": [
              "ok",
              "caution",
              "avoid",
              "unknown"
            ],
            "type": "string"
          },
          "verdict_reason": {
            "description": "prose; wording not stable — branch on reasons[].code",
            "type": "string"
          }
        },
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "address": "0x6cb442acf35158d5eda88fe602221b67b400be3e",
            "chain": "8453"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "coverage": 0.65,
            "flags": [],
            "freshness": {
              "age_seconds": 25140,
              "checked_at": "2026-08-17T09:47:12Z",
              "stale": false
            },
            "reasons": [
              {
                "code": "COVERAGE_BELOW_TARGET",
                "detail": "coverage 65% < 80%"
              },
              {
                "code": "TIER_0_ONLY",
                "detail": "tier-0 static checks cannot clear a dApp (§2.3)"
              },
              {
                "check": "trust.headers",
                "code": "CHECK_FAILED",
                "detail": "present: HSTS"
              }
            ],
            "score": 87,
            "tier": 0,
            "verdict": "caution",
            "verdict_reason": "coverage 65% < 80%; tier-0 static checks cannot clear a dApp (§2.3)"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "address": {
                    "description": "the contract address the agent is about to call",
                    "pattern": "^0x[a-fA-F0-9]{40}$",
                    "type": "string"
                  },
                  "chain": {
                    "description": "EVM chain — id (8453), CAIP-2 (eip155:8453), or name (base, mainnet, arbitrum, optimism)",
                    "type": "string"
                  }
                },
                "required": [
                  "chain",
                  "address"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "coverage": {
                    "description": "0..1 fraction of the rubric that actually ran; meaningless to read score without it",
                    "type": "number"
                  },
                  "flags": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "freshness": {
                    "description": "checked_at/age_seconds/stale. Pass max_age=<seconds> to get `unknown` + STALE_FOR_CALLER instead of an old answer — the observation still travels, so that response is billed normally. The scored fields are absent entirely (not null) on an `unknown` where we have no answer, and that one is free.",
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "reasons": {
                    "description": "stable machine-readable causes behind the verdict; see /v1/methodology → reason_codes",
                    "items": {
                      "properties": {
                        "check": {
                          "description": "on CHECK_FAILED",
                          "type": "string"
                        },
                        "code": {
                          "type": "string"
                        },
                        "detail": {
                          "type": "string"
                        },
                        "flag": {
                          "description": "on CRITICAL_FLAG",
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "score": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "tier": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "verdict": {
                    "description": "decision-shaped: ok = proceed, caution = hold, avoid = abort, unknown = not rated (never read as safe)",
                    "enum": [
                      "ok",
                      "caution",
                      "avoid",
                      "unknown"
                    ],
                    "type": "string"
                  },
                  "verdict_reason": {
                    "description": "prose; wording not stable — branch on reasons[].code",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "defi",
    "security",
    "risk",
    "onchain",
    "dapp",
    "bazaar"
  ],
  "sourceHost": "dappgrade.vercel.app",
  "lastUpdated": "2026-10-08T06:26:42.394Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-10-08T06:26:42.231Z"
  },
  "metadata": {
    "serviceName": "dappgrade",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x6cb442acf35158d5eda88fe602221b67b400be3e",
              "chain": "8453"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "coverage": 0.65,
              "flags": [],
              "freshness": {
                "age_seconds": 25140,
                "checked_at": "2026-08-17T09:47:12Z",
                "stale": false
              },
              "reasons": [
                {
                  "code": "COVERAGE_BELOW_TARGET",
                  "detail": "coverage 65% < 80%"
                },
                {
                  "code": "TIER_0_ONLY",
                  "detail": "tier-0 static checks cannot clear a dApp (§2.3)"
                },
                {
                  "check": "trust.headers",
                  "code": "CHECK_FAILED",
                  "detail": "present: HSTS"
                }
              ],
              "score": 87,
              "tier": 0,
              "verdict": "caution",
              "verdict_reason": "coverage 65% < 80%; tier-0 static checks cannot clear a dApp (§2.3)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "the contract address the agent is about to call",
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "type": "string"
                    },
                    "chain": {
                      "description": "EVM chain — id (8453), CAIP-2 (eip155:8453), or name (base, mainnet, arbitrum, optimism)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain",
                    "address"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "coverage": {
                      "description": "0..1 fraction of the rubric that actually ran; meaningless to read score without it",
                      "type": "number"
                    },
                    "flags": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "freshness": {
                      "description": "checked_at/age_seconds/stale. Pass max_age=<seconds> to get `unknown` + STALE_FOR_CALLER instead of an old answer — the observation still travels, so that response is billed normally. The scored fields are absent entirely (not null) on an `unknown` where we have no answer, and that one is free.",
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "reasons": {
                      "description": "stable machine-readable causes behind the verdict; see /v1/methodology → reason_codes",
                      "items": {
                        "properties": {
                          "check": {
                            "description": "on CHECK_FAILED",
                            "type": "string"
                          },
                          "code": {
                            "type": "string"
                          },
                          "detail": {
                            "type": "string"
                          },
                          "flag": {
                            "description": "on CRITICAL_FLAG",
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "score": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "tier": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "verdict": {
                      "description": "decision-shaped: ok = proceed, caution = hold, avoid = abort, unknown = not rated (never read as safe)",
                      "enum": [
                        "ok",
                        "caution",
                        "avoid",
                        "unknown"
                      ],
                      "type": "string"
                    },
                    "verdict_reason": {
                      "description": "prose; wording not stable — branch on reasons[].code",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "dappgrade.vercel.app",
    "manifest_name": "dappgrade.vercel.app",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {
      "coverage": 0,
      "flags": [
        "string"
      ],
      "freshness": {},
      "reasons": [
        {
          "check": "string",
          "code": "string",
          "detail": "string",
          "flag": "string"
        }
      ],
      "score": 0,
      "tier": 0,
      "verdict": "ok",
      "verdict_reason": "string"
    },
    "type": "string"
  }
}