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freshproof-api-mainnet.up.railway.app v1 compare
https://freshproof-api-mainnet.up.railway.app/v1/compare
answers 402
Compare a fresh public web retrieval with previous evidence from a ProofBundle or retained snapshot. Returns deterministic fact differences, evidence, content hashes, retrieval timestamps, and significance for autonomous agents without inventing unsupported changes.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.02
- Network
- base
- Pay to
- 0x79f29Dade1df4889357817a797516615a918Ade2
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 342 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:37:48.916Z (2d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffreshproof-api-mainnet.up.railway.app%2Fv1%2Fcompare"