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Multi-Source Transaction Verifier (lab.paidapis.net)
x402
Multi-Source Transaction Verifier (lab.paidapis.net) is a paid API for AI agents from lab.paidapis.net, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Verifies a blockchain transaction hash against multiple independent sources and returns a consensus confirmation status with a cryptographic signature.
Price / call$0.05
Success—
StatusUnknown
How this service works
Multi-source oracle: checks a Base tx hash against 3 independent RPC providers in parallel and only signs an attestation if all of them unanimously agree. If they disagree, the raw per-source breakdown is returned instead of a false attestation — stronger trust than the single-source oracle, priced accordingly.
Output
Returns a JSON object containing: the chain name, the transaction hash, confirmation status (boolean or null), block number, number of agreeing sources, total sources checked, whether consensus was reached, a signer address, a cryptographic signature over the result, and a timestamp of when the check was performed.
Example use cases
Payment confirmation before service delivery
“Before I release the digital download to this customer, can you verify that transaction 0x4f2c...8a1b is actually confirmed on-chain — check it across multiple sources so I know it's real?”
DeFi settlement finality check
“I need to confirm that tx hash 0x9d3e...c72f has reached consensus across independent nodes before we mark this escrow as settled — can you check it and tell me how many sources agreed?”
Fraud detection for suspicious transactions
“Someone sent me transaction hash 0x1b7a...e490 as proof of payment — can you run a multi-source verification on it and give me a signed attestation of whether it's actually confirmed on Base?”
Technical details
Endpoint
GEThttps://lab.paidapis.net/api/verify-tx-multi-sourceWhen to prefer
Choose this endpoint when you need tamper-evident, multi-source confirmation of a blockchain transaction rather than trusting a single RPC node. Ideal for payment verification pipelines, escrow release triggers, or fraud checks where you want a signed attestation and consensus signal across independent data providers rather than a single-node response.
Side effects
- Invalid or malformed txHash returns an error
- Transaction not yet indexed by any source returns confirmed=null and consensusReached=false
- Fewer than threshold sources respond, leading to no consensus
- Transaction hash not found on Base mainnet returns empty or null confirmation
- Network timeout from upstream RPC/oracle sources causes partial results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| txHashrequired | string | 32-byte transaction hash to check. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| chain | string | |
| signed | boolean | |
| txHash | string | |
| sources | array | |
| checkedAt | string | |
| confirmed | — | |
| signature | string | |
| blockNumber | — | |
| totalSources | integer | |
| signerAddress | string | |
| agreeingSources | integer | |
| consensusReached | boolean |
Tags
x402
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