ToolVet
77trust / 100

Chain Logs

by Tanod chainpeek in Onchain & crypto

x402 APIPassing, checked 4 h ago

chainpeek (Tanod) event logs: a transaction's logs on Ethereum or Base, with common token, DEX and admin events decoded. Read-only.

POST https://tanod.dev/v1/chain/logs

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
313 ms typical, 1.1 s slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://tanod.dev/v1/chain/logs

Each call costs $0.003 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://tanod.dev/v1/chain/logs
content-type: application/json

{
  "chain": "base",
  "hash": "0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53"
}

Parameters

ParameterTypeRequiredDescription
chainstringYesChain to read. One of: ethereum, base.
hashstringYesTransaction hash (0x + 64 hex).

Example response

The provider's example. We can't check it without paying.

Example response, 61 lines
{
  "block": 52290477,
  "chain": "base",
  "decoded": 2,
  "hash": "0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53",
  "log_count": 4,
  "logs": [
    {
      "address": "0x07b3D902783c3C12b077508c3B5c00113d1291D0",
      "data": "0x000000000000000000000000000000000000000000001566fcc581a38f8a3369",
      "data_bytes": 32,
      "data_truncated": false,
      "event": {
        "args": {
          "from": "0x03B08de934dF19d559ec7b0d55b10d1CD9Db6F99",
          "to": "0x2dF380544B88AdB3ad0A94100dcC45fd705aAE2d",
          "value": "101069478142588381442921"
        },
        "error": null,
        "name": "Transfer",
        "signature": "Transfer(address,address,uint256)",
        "standard": "erc20"
      },
      "index": 411,
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x00000000000000000000000003b08de934df19d559ec7b0d55b10d1cd9db6f99",
        "0x0000000000000000000000002df380544b88adb3ad0a94100dcc45fd705aae2d"
      ]
    },
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "data": "0x000000000000000000000000000000000000000000000000000000003c4d36fe",
      "data_bytes": 32,
      "data_truncated": false,
      "event": {
        "args": {
          "from": "0x03B08de934dF19d559ec7b0d55b10d1CD9Db6F99",
          "to": "0x2dF380544B88AdB3ad0A94100dcC45fd705aAE2d",
          "value": "1011693310"
        },
        "error": null,
        "name": "Transfer",
        "signature": "Transfer(address,address,uint256)",
        "standard": "erc20"
      },
      "index": 412,
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x00000000000000000000000003b08de934df19d559ec7b0d55b10d1cd9db6f99",
        "0x0000000000000000000000002df380544b88adb3ad0a94100dcc45fd705aae2d"
      ]
    }
  ],
  "note": "events are decoded by signature only: any contract can emit any event, so check the emitting address before trusting a decoded Transfer or Swap",
  "returned": 4,
  "rpc_calls": 1,
  "status": "success",
  "truncated": false,
  "untrusted_content": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/chain/logs' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","hash":"0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://tanod.dev/v1/chain/logs' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","hash":"0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fchain%2Flogs&method=POST
const res = await pay("https://tanod.dev/v1/chain/logs", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "chain": "base",
    "hash": "0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/chain/logs",
        json={
            "chain": "base",
            "hash": "0xcba0bb7d93ff91b597214c9a5cf6abcec02d96dd0fb521f88d42b81b724b8e53",
        },
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed4021.1 s$0.003
8 h agoPassed402546 ms$0.003
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2 days agoPassed4022.2 s$0.003