{
  "x402Version": 2,
  "id": 41574,
  "slug": "41574",
  "resource": "https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/attributes/at-block",
  "description": "TraceFast knowledge graph: the attributes an address held at the end of one block, each with the window it held for. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query block: The block to answer about. Docs: https://docs.tracefast.xyz/api/address-attributes-at-block.md",
  "type": "http",
  "serviceName": "TraceFast",
  "resourceType": "Blockchain Data",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x2A65491E93Ad0d484b74405401A38e2E0E5EDd7e",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "example": {
      "data": {
        "address": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
        "addressKnown": true,
        "block": 25000000,
        "chainId": 1,
        "coverageBlock": 26096255,
        "coveredFamilies": [
          "address_nature"
        ],
        "intervals": [
          {
            "attributeId": "address_nature:account_state_ever_touched",
            "startBlock": 16976894
          }
        ]
      }
    },
    "type": "json"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "pathParams": {
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "queryParams": {
            "block": "25000000"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "data": {
              "address": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
              "addressKnown": true,
              "block": 25000000,
              "chainId": 1,
              "coverageBlock": 26096255,
              "coveredFamilies": [
                "address_nature"
              ],
              "intervals": [
                {
                  "attributeId": "address_nature:account_state_ever_touched",
                  "startBlock": 16976894
                }
              ]
            }
          },
          "type": "json"
        }
      },
      "routeTemplate": "/api/v1/chains/1/entities/:address/attributes/at-block",
      "schema": {
        "properties": {
          "input": {
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              }
            },
            "required": [
              "method"
            ]
          }
        }
      }
    },
    "offer-receipt": {
      "info": {
        "offers": [
          {
            "acceptIndex": 0,
            "format": "jws",
            "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6bXBwLnRyYWNlZmFzdC54eXojMjAyNi0xMCJ9.eyJhbW91bnQiOiI1MDAwMCIsImFzc2V0IjoiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwicGF5VG8iOiIweDJBNjU0OTFFOTNBZDBkNDg0Yjc0NDA1NDAxQTM4ZTJFMEU1RURkN2UiLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vbXBwLnRyYWNlZmFzdC54eXovYXBpL3YxL2NoYWlucy8xL2VudGl0aWVzLzB4ODMzNTg5ZkNENmVEYjZFMDhmNGM3QzMyRDRmNzFiNTRiZEEwMjkxMy9hdHRyaWJ1dGVzL2F0LWJsb2NrIiwic2NoZW1lIjoiZXhhY3QiLCJ2YWxpZFVudGlsIjoxNzkxNDQxMTI2LCJ2ZXJzaW9uIjoxfQ.WFbAO0r5QveNVi8bcfCtUm-CgKPIWd4VxQcVi65bkqna4vwaLS6Yx5uyY0JNDwkiB-Gf3tFSxKbTbU6jsxUrBA"
          }
        ]
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "offers": {
            "items": {
              "properties": {
                "acceptIndex": {
                  "type": "integer"
                },
                "format": {
                  "type": "string"
                },
                "payload": {
                  "properties": {
                    "amount": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "network": {
                      "type": "string"
                    },
                    "payTo": {
                      "type": "string"
                    },
                    "resourceUrl": {
                      "type": "string"
                    },
                    "scheme": {
                      "type": "string"
                    },
                    "validUntil": {
                      "type": "integer"
                    },
                    "version": {
                      "type": "integer"
                    }
                  },
                  "required": [
                    "version",
                    "resourceUrl",
                    "scheme",
                    "network",
                    "asset",
                    "payTo",
                    "amount"
                  ],
                  "type": "object"
                },
                "signature": {
                  "type": "string"
                }
              },
              "required": [
                "format",
                "signature"
              ],
              "type": "object"
            },
            "type": "array"
          }
        },
        "required": [
          "offers"
        ],
        "type": "object"
      }
    },
    "tracefast-receipt": {
      "info": {
        "method": "entity-attributes-at-block",
        "version": 1
      }
    }
  },
  "tags": [
    "blockchain",
    "ethereum",
    "address-intelligence",
    "labels",
    "entities",
    "bazaar",
    "offer-receipt",
    "tracefast-receipt"
  ],
  "sourceHost": "mpp.tracefast.xyz",
  "lastUpdated": "2026-10-08T06:27:06.489Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-10-08T06:27:06.393Z"
  },
  "metadata": {
    "serviceName": "TraceFast",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "queryParams": {
              "block": "25000000"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "address": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
                "addressKnown": true,
                "block": 25000000,
                "chainId": 1,
                "coverageBlock": 26096255,
                "coveredFamilies": [
                  "address_nature"
                ],
                "intervals": [
                  {
                    "attributeId": "address_nature:account_state_ever_touched",
                    "startBlock": 16976894
                  }
                ]
              }
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/v1/chains/1/entities/:address/attributes/at-block",
        "schema": {
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              },
              "required": [
                "method"
              ]
            }
          }
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "jws",
              "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6bXBwLnRyYWNlZmFzdC54eXojMjAyNi0xMCJ9.eyJhbW91bnQiOiI1MDAwMCIsImFzc2V0IjoiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwicGF5VG8iOiIweDJBNjU0OTFFOTNBZDBkNDg0Yjc0NDA1NDAxQTM4ZTJFMEU1RURkN2UiLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vbXBwLnRyYWNlZmFzdC54eXovYXBpL3YxL2NoYWlucy8xL2VudGl0aWVzLzB4ODMzNTg5ZkNENmVEYjZFMDhmNGM3QzMyRDRmNzFiNTRiZEEwMjkxMy9hdHRyaWJ1dGVzL2F0LWJsb2NrIiwic2NoZW1lIjoiZXhhY3QiLCJ2YWxpZFVudGlsIjoxNzkxNDQxMTI2LCJ2ZXJzaW9uIjoxfQ.WFbAO0r5QveNVi8bcfCtUm-CgKPIWd4VxQcVi65bkqna4vwaLS6Yx5uyY0JNDwkiB-Gf3tFSxKbTbU6jsxUrBA"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      },
      "tracefast-receipt": {
        "info": {
          "method": "entity-attributes-at-block",
          "version": 1
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "mpp.tracefast.xyz",
    "manifest_name": "mpp.tracefast.xyz",
    "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": {
    "data": {
      "address": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
      "addressKnown": true,
      "block": 25000000,
      "chainId": 1,
      "coverageBlock": 26096255,
      "coveredFamilies": [
        "address_nature"
      ],
      "intervals": [
        {
          "attributeId": "address_nature:account_state_ever_touched",
          "startBlock": 16976894
        }
      ]
    }
  }
}