ToolAssay

Website change monitoring for agents that check in a loop

Website change monitoring for agents that check in a loop: send a URL and get only what changed since your last call (added and removed lines of the page text), plus optional keyword alerts. First call saves a baseline and returns a cursor; pass the cursor on the next call. The cursor only advances when a change is reported, so nothing slips through between polls. Good for price pages, docs and changelogs, job boards, status pages, competitor sites, government notices.

Not tested: has real-world effectsour last check, 2026-10-10
0 of 0checks answered this week
n/amedian answer time
$0.003listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://agentsvc.io/api/v1/proxy/page-watch

CategoryMarket data
Provider hostagentsvc.io
Networkseip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Payment schemesexact
Self-reported calls, 30 days4 from 2 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "keywords": [
      "3.15"
    ],
    "url": "https://www.python.org/downloads/"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "cursor": {
              "description": "Cursor from your previous call; omit on the first call",
              "type": "string"
            },
            "ignore": {
              "description": "Ignore lines containing any of these substrings",
              "items": {
                "type": "string"
              },
              "maxItems": 20,
              "type": "array"
            },
            "keywords": {
              "description": "Alert when one of these appears in newly added text (case-insensitive)",
              "items": {
                "type": "string"
              },
              "maxItems": 10,
              "type": "array"
            },
            "render": {
              "default": false,
              "description": "Render JavaScript before reading",
              "type": "boolean"
            },
            "url": {
              "description": "Page to watch (http or https)",
              "type": "string"
            }
          },
          "required": [
            "url"
          ]
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "data": {
              "properties": {
                "changed": {
                  "type": "boolean"
                },
                "checked_at": {
                  "type": "string"
                },
                "content_hash": {
                  "type": "string"
                },
                "cursor": {
                  "type": "string"
                },
                "cursor_help": {
                  "type": "string"
                },
                "diff": {
                  "properties": {
                    "added": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "added_count": {
                      "type": "integer"
                    },
                    "removed": {
                      "type": "array"
                    },
                    "removed_count": {
                      "type": "integer"
                    },
                    "truncated": {
                      "type": "boolean"
                    }
                  },
                  "type": "object"
                },
                "first_check": {
                  "type": "boolean"
                },
                "http_status": {
                  "type": "integer"
                },
                "keyword_alert": {
                  "type": "boolean"
                },
                "keywords": {
                  "items": {
                    "properties": {
                      "keyword": {
                        "type": "string"
                      },
                      "newly_appeared": {
                        "type": "boolean"
                      },
                      "present": {
                        "type": "boolean"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "line_count": {
                  "type": "integer"
                },
                "since": {
                  "type": "string"
                },
                "summary": {
                  "type": "string"
                },
                "title": {
                  "type": "string"
                },
                "url": {
                  "type": "string"
                },
                "word_count": {
                  "type": "integer"
                }
              },
              "required": [
                "changed",
                "cursor",
                "summary",
                "diff"
              ],
              "type": "object"
            },
            "success": {
              "type": "boolean"
            }
          },
          "required": [
            "success",
            "data"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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