{
  "x402Version": 2,
  "id": 29330,
  "slug": "29330",
  "resource": "https://api.agentwork.run/v1/web/changes",
  "description": "Website change monitoring / webpage change detection — text_sha256 or previous_text diff for documentation, pricing-page, changelog and policy monitoring. Batch up to 10 URLs in one call (items[]); optional CSS selector scoping and a one-line diff summary. $0.005 per URL Base ($0.01 Algorand); batch of 2-10 $0.003/URL ($0.006). Caller stores baseline; no server watch list. HTML/text only; no JS render. Failed checks not settled.",
  "type": "http",
  "serviceName": "AgentWork Web Evidence",
  "resourceType": "Web Intelligence",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x1cfC6489bC9703a2A49715b8a746D8c6075F3A80",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "payTo": "PFHYLVHX77ANNQVF67LK6EVYB34D5VDIUOWLOL5SX367M366DBLOQQAOCA",
      "asset": "31566704",
      "amount": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "previous_text": "Example Domain\nOld text.",
            "url": "https://example.com"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "comparison": {
              "added": [
                "New line"
              ],
              "changed": true,
              "removed": [
                "Old line"
              ]
            },
            "fetched_at": "2026-09-08T00:00:00Z",
            "ok": true,
            "text": "Example Domain\nNew line",
            "url": "https://example.com/"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "anyOf": [
                  {
                    "required": [
                      "url"
                    ]
                  },
                  {
                    "required": [
                      "items"
                    ]
                  }
                ],
                "description": "Single URL: url + previous_sha256 or previous_text (omit both for the first snapshot). Batch: items[] of 1-10 {url, previous_sha256|previous_text}; 2-10 items are $0.003 each on Base ($0.006 Algorand). Keep max_chars and selector identical between runs.",
                "properties": {
                  "diff_summary": {
                    "default": false,
                    "type": "boolean"
                  },
                  "items": {
                    "items": {
                      "anyOf": [
                        {
                          "maxLength": 2048,
                          "type": "string"
                        },
                        {
                          "additionalProperties": false,
                          "properties": {
                            "previous_sha256": {
                              "pattern": "^[a-fA-F0-9]{64}$",
                              "type": "string"
                            },
                            "previous_text": {
                              "maxLength": 60000,
                              "type": "string"
                            },
                            "url": {
                              "maxLength": 2048,
                              "type": "string"
                            }
                          },
                          "required": [
                            "url"
                          ],
                          "type": "object"
                        }
                      ]
                    },
                    "maxItems": 10,
                    "minItems": 1,
                    "type": "array"
                  },
                  "max_chars": {
                    "default": 20000,
                    "maximum": 60000,
                    "minimum": 1000,
                    "type": "integer"
                  },
                  "previous_sha256": {
                    "pattern": "^[a-fA-F0-9]{64}$",
                    "type": "string"
                  },
                  "previous_text": {
                    "maxLength": 60000,
                    "type": "string"
                  },
                  "selector": {
                    "maxLength": 300,
                    "type": "string"
                  },
                  "url": {
                    "maxLength": 2048,
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "web",
    "research",
    "monitoring",
    "change-detection",
    "website-change-monitoring",
    "bazaar"
  ],
  "sourceHost": "api.agentwork.run",
  "lastUpdated": "2026-10-10T04:02:04.416Z",
  "quality": {
    "calls30d": 3,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-10-10T04:02:04.006Z"
  },
  "metadata": {
    "serviceName": "AgentWork Web Evidence",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "previous_text": "Example Domain\nOld text.",
              "url": "https://example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "comparison": {
                "added": [
                  "New line"
                ],
                "changed": true,
                "removed": [
                  "Old line"
                ]
              },
              "fetched_at": "2026-09-08T00:00:00Z",
              "ok": true,
              "text": "Example Domain\nNew line",
              "url": "https://example.com/"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "anyOf": [
                    {
                      "required": [
                        "url"
                      ]
                    },
                    {
                      "required": [
                        "items"
                      ]
                    }
                  ],
                  "description": "Single URL: url + previous_sha256 or previous_text (omit both for the first snapshot). Batch: items[] of 1-10 {url, previous_sha256|previous_text}; 2-10 items are $0.003 each on Base ($0.006 Algorand). Keep max_chars and selector identical between runs.",
                  "properties": {
                    "diff_summary": {
                      "default": false,
                      "type": "boolean"
                    },
                    "items": {
                      "items": {
                        "anyOf": [
                          {
                            "maxLength": 2048,
                            "type": "string"
                          },
                          {
                            "additionalProperties": false,
                            "properties": {
                              "previous_sha256": {
                                "pattern": "^[a-fA-F0-9]{64}$",
                                "type": "string"
                              },
                              "previous_text": {
                                "maxLength": 60000,
                                "type": "string"
                              },
                              "url": {
                                "maxLength": 2048,
                                "type": "string"
                              }
                            },
                            "required": [
                              "url"
                            ],
                            "type": "object"
                          }
                        ]
                      },
                      "maxItems": 10,
                      "minItems": 1,
                      "type": "array"
                    },
                    "max_chars": {
                      "default": 20000,
                      "maximum": 60000,
                      "minimum": 1000,
                      "type": "integer"
                    },
                    "previous_sha256": {
                      "pattern": "^[a-fA-F0-9]{64}$",
                      "type": "string"
                    },
                    "previous_text": {
                      "maxLength": 60000,
                      "type": "string"
                    },
                    "selector": {
                      "maxLength": 300,
                      "type": "string"
                    },
                    "url": {
                      "maxLength": 2048,
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "api.agentwork.run",
    "manifest_name": "api.agentwork.run",
    "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": {},
    "type": "string"
  }
}