ARYSPHERE Ethereum Mainnet Logs & Transaction Reader

x402

ARYSPHERE Ethereum Mainnet Logs & Transaction Reader is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).

Fetches Ethereum mainnet event logs filtered by contract address/topic and retrieves transaction details by hash, paid per call in USDC via x402.

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

ARYSPHERE sells AI-written verdicts on Base token contracts (a grade, a one-liner, a roast and the contract's facts) and Base/Ethereum chain reads, paid per call in USDC on Base over x402 v2. No account and no API key.

Output

Returns a JSON object with two parts: eth_mainnet_eth_getlogs (array of raw log objects with address, topics, data, blockNumber, transactionHash, logIndex, etc., plus count and truncation info) and eth_mainnet_eth_gettransactionbyhash (full transaction object with from, to, gas, input, r/s/v signatures, type, and hash). The ok field indicates success for each part.

Example use cases

Track ERC-20 transfers on Ethereum

“Get the last 50 blocks of Transfer event logs for the USDC contract at 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 on Ethereum mainnet using topic 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef.”

Verify a specific Ethereum transaction

“Look up the full details of this Ethereum mainnet transaction for me: 0xc43fe089e6e8de6c1bf47a65f74661323154af09655dbde2c7f728e768d864eb — I need the from address, to address, gas used, and input data.”

Audit smart contract events on Ethereum

“Fetch the event logs emitted by Ethereum contract 0x7a250d5630b4cf539739df2c5dacb4c659f2488d over the last 30 blocks so I can audit recent activity without setting up a node.”

Technical details

Endpoint

GEThttps://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_logs_and_tx?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to read Ethereum mainnet event logs and/or transaction details without setting up your own RPC node, API key, or account. Ideal for agents that need pay-per-call, keyless blockchain reads on Ethereum mainnet via x402 USDC micropayments. Prefer over alternatives when you need both logs (eth_getLogs) and transaction data (eth_getTransactionByHash) in a single call, or when you want no subscription overhead.

Side effects

Invalid transaction hash format returns error on the transaction part
Contract address in wrong format (not 0x + 40 hex) causes validation failure
topic0 hash not properly formatted causes log filter to return no results
blocks value out of range 1-100 returns validation error
Network unavailability on Ethereum mainnet causes downstream RPC error
No logs found for the given filter returns empty logs array with count 0

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "parts": {
      "eth_mainnet_eth_getlogs": {
        "ok": true,
        "chain": "ethereum",
        "method": "eth_getLogs",
        "result": {
          "logs": [
            {
              "data": "0x0000000000000000000000000000000000000000000000000000000011000a58",
              "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x000000000000000000000000bdb3ba9ffe392549e1f8658dd2630c141fdf47b6"
              ],
              "address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
              "removed": false,
              "logIndex": "0x17",
              "blockHash": "0xf88c7d6da7b73bdf869dac8661602de3f98f208d7eb052a1073edd6e5041a363",
              "blockNumber": "0x18ff029",
              "blockTimestamp": "0x6ad30f1b",
              "transactionHash": "0x4c1a6d22ae7677c3c500e5ad82827193dbc4aaf488a6af3c3e7c8ce5e04334a0",
              "transactionIndex": "0x2"
            },
            {
              "data": "0x0000000000000000000000000000000000000000000000000000000002faf080",
              "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x000000000000000000000000924e1b33b1fc3041351b2082ddd11d5c8bcca370"
              ],
              "address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
              "removed": false,
              "logIndex": "0x39",
              "blockHash": "0xf88c7d6da7b73bdf869dac8661602de3f98f208d7eb052a1073edd6e5041a363",
              "blockNumber": "0x18ff029",
              "blockTimestamp": "0x6ad30f1b",
              "transactionHash": "0x6cb83f77e12d2b4be5980a47bcfd0f3a24a3743cbc49775a323172f539610a5f",
              "transactionIndex": "0x8"
            }
          ],
          "count": 1394,
          "to_block": 26210354,
          "truncated": true,
          "from_block": 26210345
        },
        "service": "x402_eth_reads_v1.eth_mainnet_eth_getlogs"
      },
      "eth_mainnet_eth_gettransactionbyhash": {
        "ok": true,
        "chain": "ethereum",
        "method": "eth_getTransactionByHash",
        "result": {
          "r": "0x4ce24c0306d81eb49173e339b90025a281ccc73f1b645c955cdcaa32dfa81ab1",
          "s": "0x26efbc9d02b4e6d659ea3823fe3ec6ea84409edcf6b21a8737b041af3ce6308b",
          "v": "0x0",
          "to": "0x0000000aa232009084bd71a5797d089aa4edfad4",
          "gas": "0x6e4cc",
          "from": "0xc917c3fa468f2c4b9c84c72caa46420eb9825249",
          "hash": "0xc43fe089e6e8de6c1bf47a65f74661323154af09655dbde2c7f728e768d864eb",
          "type": "0x2",
          "input": "0x09c5eabe000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000002950000cca0b86991c6218b36c1d19d4a2e9eb0ce3606eb4800000000000000000000000000000001000000000000000000000000",
          "nonce": "0x23866",
          "value": "0x0",
          "chainId": "0x1",
          "yParity": "0x0",
          "gasPrice": "0x206e2cc9",
          "blockHash": "0x7538fe3a3bb34856c428edf3a6987a3f65c62e420473a509e0ef6e6446aac74b",
          "accessList": [],
          "blockNumber": "0x18f1ab8",
          "maxFeePerGas": "0x40f9b8b4",
          "blockTimestamp": "0x6ac905e3",
          "transactionIndex": "0x0",
          "maxPriorityFeePerGas": "0x0"
        },
        "service": "x402_chain_reads_v1.eth_gettransactionbyhash"
      }
    },
    "service": "x402_eth_reads_v1.eth_mainnet_logs_and_tx"
  }
}

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