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Transaction Lookup & Decode
x402
Transaction Lookup & Decode is a paid API for AI agents from x402-seller-pmlm.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).
Looks up and decodes on-chain transaction details (status, transfers, fees, method) for any EVM or Solana tx hash, across Ethereum, Base, Arbitrum, Polygon, and Solana.
Price / call$0.003
Success—
StatusUnknown
How this service works
Decode transaction: status, receipt and decoded token transfers for any tx hash or Solana signature, read onchain. EVM (auto-detects Ethereum, Base, Arbitrum, Polygon): success/reverted, block time, confirmations, from/to, method, fee in USD, every ERC-20/NFT transfer; flags x402 USDC payments. Solana: status, fee, SOL + token balance changes. Use to verify a payment landed. 0.003 USDC/call; failed calls are free.
Output
Returns a JSON object with the chain name, transaction status (success/reverted/failed/pending), block timestamp, from and to addresses, decoded method name, fee in USD, an array of decoded token transfers (for EVM), token balance changes (for Solana), and a link to the block explorer. Flags x402/EIP-3009 USDC payment patterns when detected.
Example use cases
Verify USDC payment receipt
“I just received a USDC payment on Base — the tx hash is 0x3f8a1d9c2e4b7f0a5d6e7c8b9a0f1e2d3c4b5a6e7f8d9c0b1a2e3f4d5c6b7a8e. Can you confirm it went through, who sent it, how much was transferred, and flag if it was an x402 or EIP-3009 payment?”
Debug a reverted Arbitrum transaction
“This Arbitrum tx 0x1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c seems to have failed — can you decode it and tell me the status, what method was called, and the gas fee in USD?”
Audit Solana token balance changes
“Can you pull up this Solana transaction — 5J7eXkQpLmN3rTvWxYzAb8CdEfGhIjKlMnOpQrStUvWxYzAb8CdEfGhIjKlMnOp — and show me all the SOL and token balance changes, the fee, and whether it succeeded?”
Technical details
Endpoint
GEThttps://x402-seller-pmlm.onrender.com/tx?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to verify, decode, or audit a specific on-chain transaction by hash or Solana signature, especially when you need human-readable decoded output (method name, token amounts, USD fees) rather than raw RPC data. It auto-detects EVM chains so you don't need to specify one, and it specifically decodes x402/EIP-3009 USDC payment patterns — making it ideal for payment verification in agentic workflows. Cost is $0.003 USDC per successful call.
Side effects
- 400 Bad Request: malformed or invalid tx hash/signature format (not charged)
- 422 Unprocessable Entity: transaction not found on any searched chain, or node unreachable (not charged)
- 503 Service Unavailable: backend too busy to process request (not charged)
- Ambiguous chain if EVM hash exists on multiple networks — specify chain param to disambiguate
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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