api.fairseal.io

Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s).

Endpoint

https://api.fairseal.io/v1/notarize

Price

$0.02 / call

Settles via

cdp

Category

—

Last seen live

never

Last probed

Tue, 08 Sep 2026 05:24:44 UTC

First indexed

Tue, 08 Sep 2026 05:22:25 UTC

Sources

cdp-x402

Probe history

Last 1 probes, newest on the right. 0% answered with a payment challenge.

JSON: /api/v1/services/api.fairseal.io. Own this service? Update the listing.