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Apiosk TX Confirmation Attestation
x402
Apiosk TX Confirmation Attestation is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Reads a Base blockchain transaction receipt, compares it to the head block, and returns a signed JWS-HS256 attestation with status, block number, and confirmation count.
Price / call$0.01
Success—
StatusUnknown
How this service works
Read a transaction receipt on Base, compare it against the head block, and return status (success/failed/pending), the block it landed in and a confirmation count, wrapped in a signed JWS-HS256 receipt. Independently re-checkable from the tx block + head block in the envelope.
Output
A JWS-HS256 signed envelope containing: transaction status (success/failed/pending), the block number the transaction landed in, confirmation count (head block minus tx block), and the head block reference — allowing independent re-verification from the on-chain data in the envelope.
Example use cases
Post-payment confirmation for a dApp
“My user just paid with USDC on Base — can you verify that transaction 0x4f7a2b...c891 actually succeeded and give me a signed receipt with its block number and confirmation count so I can unlock their account?”
Dispute resolution proof of payment
“I need tamper-proof proof that transaction 0x9e3d1a...7f02 on Base was successful — can you get me a signed attestation with the block it landed in and how many confirmations it has?”
Automated payout audit trail
“Before I mark this withdrawal as complete, check that Base tx 0x12bc44...a73f is confirmed and return a signed JWS receipt I can store showing its status and confirmation count.”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/attestations/tx-confirmationWhen to prefer
Choose this endpoint when you need a cryptographically signed, independently verifiable attestation of a Base transaction's status — not just a raw RPC response. Ideal for audit trails, dispute resolution, automated payment pipelines, or any workflow where a tamper-evident receipt is required. Preferable over raw Base RPC calls when you need a structured, signed result that a third party can verify without querying the chain themselves.
Side effects
- Transaction hash not found on Base — returns error indicating tx does not exist
- Transaction still pending with 0 confirmations — returns pending status
- Invalid or malformed transaction hash input
- Network connectivity issues reading Base chain state
- Head block temporarily unavailable causing confirmation count error
Tags
x402
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