MERCHANT

api.fairseal.io x402 offerings

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2offerings
$0.05median USD/USDC cost (2 priced)
754 msmedian observed latency (2 tested)

Offering types

Api Endpoint: 2

Methods

Get: 1Post: 1

Observed health

Healthy: 2

Offerings

Showing 1–2 of 2

Notarize an AI agent decision, audit record, or any payload to Base mainnet. Submit SHA-256 hash + metadata; get a tamper-proof verifiable receipt immediately. Merkle proof and on-chain anchor_tx available free after batch (~120s). Use Idempotency-Key to prevent double-charges on retry.

Api EndpointBlockchain And CryptoHealthy · 325 ms0.05 USDC0.05 USDC · eip155:8453 · USDC0.05 USDC · eip155:8453 · USDC
https://api.fairseal.io/v1/notarize
Details

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_anc…

Api EndpointBlockchain And CryptoHealthy · 352 ms0.05 USDC0.05 USDC · eip155:8453 · USDC
https://api.fairseal.io/v1/notarize
Details