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P0 Agent Economy Index – EVM Transaction Lookup
x402
P0 Agent Economy Index – EVM Transaction Lookup is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-20).
Fetches on-chain EVM transaction details (fields, calldata, gas, confirmations) for a given transaction hash from a public node, across Ethereum, Base, Arbitrum, Polygon, or Optimism.
Price / call$0.002
Success—
StatusUnknown
How this service works
An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.
Output
A JSON object containing the transaction's chain, chain ID, latest block at query time, sender, recipient, wei value, gas limit, gas price, max fee per gas, max priority fee per gas, nonce, transaction type, block number, confirmations, transaction index, first 1 KB of calldata, calldata byte length, method ID, pending status, the public node that answered, ISO timestamp of the reply, and an errors array listing any fields the node did not return.
Example use cases
Verify a USDC payment on Base
“Can you check transaction 0xa0dbae3236a486c4f7285206f416694bba403f95969dfa3d94a28e8f2538d9fd on Base and confirm it's no longer pending and has at least 50 confirmations?”
Inspect calldata of a smart contract call
“Fetch the transaction 0xabc123...def456 on Arbitrum and show me the full calldata hex and the method ID so I can figure out which function was called.”
Debug a failed or slow Optimism transaction
“Look up transaction 0x9f1e2d3c4b5a6789abcdef1234567890abcdef1234567890abcdef1234567890ab on Optimism — is it still pending, what gas price was set, and which block was it included in?”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/evm/tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a direct, uncached read of a single EVM transaction's raw on-chain data — including calldata, gas parameters, and confirmation count — across Ethereum, Base, Arbitrum, Polygon, or Optimism, without needing USD pricing or token interpretation. It is a good fit for verifying payment receipts, inspecting contract call inputs, or checking confirmation depth.
Side effects
- Invalid or malformed transaction hash returns a validation error
- Transaction hash not found on the specified chain returns null fields and errors array entries
- Unsupported chain value returns a schema validation error
- Public node downtime or rate-limiting may yield partial responses with populated errors array
- Pending transactions return null for block_number and confirmations
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"gas": "60000",
"from": "0x4cad6ec90e65babec9335cad728ddc610c316368",
"hash": "0xa0dbae3236a486c4f7285206f416694bba403f95969dfa3d94a28e8f2538d9fd",
"note": "Read directly from a public node at the block shown; nothing is cached, estimated or priced in USD. A field the node did not return is null and named in errors.",
"type": 2,
"as_of": "2026-10-19T12:00:00.000Z",
"block": 52207800,
"chain": "base",
"input": "0xa9059cbb00000000000000000000000017192bd2e8893e4ea0ab5db67adbf38ae42e9931000000000000000000000000000000000000000000000000000000000000353f",
"nonce": 41,
"value": "0",
"errors": [],
"source": "base.drpc.org",
"chainId": 8453,
"pending": false,
"method_id": "0xa9059cbb",
"value_wei": "0",
"input_bytes": 68,
"block_number": 52207700,
"confirmations": 101,
"gas_price_wei": "10000000",
"input_truncated": false,
"transaction_index": 12,
"max_fee_per_gas_wei": "20000000",
"max_priority_fee_per_gas_wei": "1000000"
}
}Tags
x402
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