Chain Events

Last 30 days

Uptime

100%

Response time

285 ms typical, 520 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# bash or zsh: see the payment challenge (nothing is charged)
curl -g -i -X POST 'https://tanod.dev/v1/chain/events' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","chain":"base","topics":["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fchain%2Fevents
const res = await pay("https://tanod.dev/v1/chain/events", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: "{\"address\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"chain\":\"base\",\"topics\":[\"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef\"]}",
});
console.log(await res.json());

Example input

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "chain": "base",
  "topics": [
    "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
  ]
}

Example output

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "blocks": 1,
  "chain": "base",
  "decoded": 2,
  "from_block": 52373503,
  "log_count": 2,
  "logs": [
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "block": 52373503,
      "data": "0x0000000000000000000000000000000000000000000000000000001f2a9d77df",
      "data_bytes": 32,
      "data_truncated": false,
      "event": {
        "args": {
          "from": "0xb2cc224c1c9feE385f8ad6a55b4d94E92359DC59",
          "to": "0xb093da272A66D47b7445cA389CEbdc6d3Ac7753D",
          "value": "133858949087"
        },
        "error": null,
        "name": "Transfer",
        "signature": "Transfer(address,address,uint256)",
        "standard": "erc20"
      },
      "log_index": 26,
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x000000000000000000000000b2cc224c1c9fee385f8ad6a55b4d94e92359dc59",
        "0x000000000000000000000000b093da272a66d47b7445ca389cebdc6d3ac7753d"
      ],
      "transaction_hash": "0x58d0d17b5944b268a414c87a2feca10ace73f0746b522e4e90ad329b630f490d"
    },
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "block": 52373503,
      "data": "0x00000000000000000000000000000000000000000000000000000000025b41fa",
      "data_bytes": 32,
      "data_truncated": false,
      "event": {
        "args": {
          "from": "0xD69E78df9972EEa3d0A3bCC83243D8b2583052C5",
          "to": "0xe4eac6027AAbe094453b02401ef7C5B789439621",
          "value": "39535098"
        },
        "error": null,
        "name": "Transfer",
        "signature": "Transfer(address,address,uint256)",
        "standard": "erc20"
      },
      "log_index": 37,
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x000000000000000000000000d69e78df9972eea3d0a3bcc83243d8b2583052c5",
        "0x000000000000000000000000e4eac6027aabe094453b02401ef7c5b789439621"
      ],
      "transaction_hash": "0x59bbb9378816a6b28e392de121fd8d431344ec46cca4ca207ac6827496ec56b6"
    }
  ],
  "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": 2,
  "rpc_calls": 2,
  "to_block": 52373503,
  "topics": [
    "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
  ],
  "truncated": false,
  "untrusted_content": true
}

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