Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

Check whether a public webpage changed since your previous read

Check whether a public webpage changed since your previous read. Send prior text_sha256 for a compact changed/unchanged result, or previous_text for added and removed lines. If you omit a baseline, this is a first snapshot (stores nothing server-side; returns current text + hash). Useful for documentation, pricing-page and policy monitoring. $0.005 USDC on Base or $0.01 USDC on Algorand per successful check. HTML/text only; no JavaScript rendering.

Do you run api.agentwork.run? This listing was mirrored from Coinbase's public Bazaar. Claim it in 30 seconds — no account required — and it becomes verified, permanently overriding the mirrored copy.

Claim this listing
5000 (raw units)
price
3
calls / 30d
3
unique payers
2026-09-17
updated

Provider

api.agentwork.run · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x1cfC6489bC9703a2A49715b8a746D8c6075F3A80",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "payTo": "PFHYLVHX77ANNQVF67LK6EVYB34D5VDIUOWLOL5SX367M366DBLOQQAOCA",
    "asset": "31566704",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "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": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "max_chars": {
                  "default": 20000,
                  "description": "Maximum returned characters; keep identical between comparisons",
                  "maximum": 60000,
                  "minimum": 1000,
                  "type": "integer"
                },
                "previous_sha256": {
                  "description": "Prior text_sha256; provides a compact change check without line diff",
                  "pattern": "^[a-fA-F0-9]{64}$",
                  "type": "string"
                },
                "previous_text": {
                  "description": "Exact text from the prior read, for line additions/removals",
                  "maxLength": 60000,
                  "type": "string"
                },
                "url": {
                  "description": "Public HTTP/HTTPS URL; ports 80/443 and public IPv4 resolution only",
                  "format": "uri",
                  "maxLength": 2048,
                  "type": "string"
                }
              },
              "required": [
                "url"
              ],
              "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"
    }
  }
}

Use it

curl

curl "https://api.agentwork.run/v1/web/changes"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.agentwork.run/v1/web/changes");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.agentwork.run/v1/web/changes")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/7588.json, and this resource appears in /discovery/resources and /discovery/search.