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PyFile Agent Web Change Detector
x402
PyFile Agent Web Change Detector is a paid API for AI agents from pyfile-agent.taile3ff35.ts.net:10000, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Computes the SHA-256 hash of a web page or JSON body and compares it against a baseline hash to detect changes, with optional JSON path extraction for monitoring specific fields.
Price / call$0.003
Success—
StatusUnknown
How this service works
SHA-256 of a page or JSON body + change detection vs a baseline hash. Stateless monitoring. Add &json_path=a.b.0 to extract and watch a single JSON field (price, counter). ?url=https://example.com&baseline=<sha256>&json_path=bitcoin.usd
Output
Returns the current SHA-256 hash of the fetched URL's body (or of the extracted JSON field value if json_path is provided), along with a boolean or signal indicating whether the hash matches the provided baseline. If baseline differs, indicates a change has been detected.
Example use cases
Monitor live cryptocurrency price field
“Watch the bitcoin.usd field in the CoinGecko JSON at https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd and tell me if it's changed from my baseline hash 9f86d081884c7d659a2feaa0c55ad015a3bf4f1f8ec0e240965122d3a5f263b.”
Alert on website content change
“Check if the text on https://mycompany.com/status has changed from its last known SHA-256 hash 3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b — I want to know if anything has been updated.”
Detect API config drift
“Fetch https://config.internal.example.com/settings.json and compare it against my saved baseline hash d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2 — alert me if the config has drifted.”
Technical details
Endpoint
GEThttps://pyfile-agent.taile3ff35.ts.net:10000/data/watchWhen to prefer
Use this endpoint when you need stateless, lightweight change detection for a web page or a specific field within a JSON API response. It is ideal when you already have a baseline SHA-256 hash and want to know if the content has changed without storing state server-side. Prefer this over full-scraping solutions when you only care about whether content has changed, not what it changed to, especially for narrow JSON field monitoring like prices or counters.
Side effects
- Target URL is unreachable or returns an error — hash cannot be computed
- Invalid or malformed json_path causes extraction failure
- Baseline hash not provided — comparison not performed, only current hash returned
- URL returns dynamic headers or timestamps causing false positives in body hashing
- Rate limiting or blocking by the target server
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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