Wallet token transfers (filtered)

Recent token transfers for a wallet on Base, Ethereum and other EVM chains, newest first. Send POST /api/asset-transfers with no required fields (12 optional) and pay $0.003 per call over x402 or MPP (there is no free tier). It returns a JSON object with network, chainId, address, direction, counterparty and 11 more.

Filtered transfer log for an EVM address: one direction (in or out), optional counterparty, a category subset (external / internal / erc20 / erc721 / erc1155 / specialnft), an optional contract filter (e.g. only USDC), a block range, and a cursor for paging. One indexed query per call - the cheap way to ask 'every USDC transfer into this wallet' or 'all transfers from A to B' without scanning logs. Values are exact decimal strings scaled by the token's decimals; each row carries the block timestamp.

Category: Crypto & onchain data · Tags: crypto transfers erc20 erc721 erc1155 wallet history evm · Also found as: blockchain-transfers erc20-transfers

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Parameters

Example request

curl -i -X POST https://agent402.tools/api/asset-transfers \
  -H "Content-Type: application/json" \
  -d '{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","direction":"in","category":["erc20"],"contracts":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"],"maxCount":5,"network":"ethereum"}'

Without payment this returns HTTP 402 Payment Required with the exact price for asset-transfers; any x402 v2 or MPP client pays it and retries.

Example response

{
  "network": "ethereum",
  "chainId": 1,
  "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
  "direction": "in",
  "counterparty": null,
  "categories": [
    "erc20"
  ],
  "contracts": [
    "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
  ],
  "fromBlock": "0x0",
  "toBlock": "latest",
  "order": "desc",
  "maxCount": 5,
  "count": 5,
  "transfers": [
    {
      "blockNum": 25563191,
      "timestamp": "2026-07-19T00:32:23.000Z",
      "hash": "0x214b…e56b",
      "from": "0xa916…6081",
      "to": "0xd8da…6045",
      "category": "erc20",
      "asset": "USDC",
      "value": "0.42",
      "contract": "0xa0b8…eb48",
      "rawValue": "420000",
      "decimals": 6,
      "tokenId": null
    }
  ],
  "pageKey": "1f449b0c-…",
  "source": "alchemy",
  "fetchedAt": "2026-08-22T12:00:00.000Z"
}

From an MCP client

catalog.call {
  "slug": "asset-transfers",
  "params": {
    "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
    "direction": "in",
    "category": [
      "erc20"
    ],
    "contracts": [
      "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
    ],
    "maxCount": 5,
    "network": "ethereum"
  }
}

The hosted connector at https://agent402.tools/mcp needs a payment for asset-transfers; the stdio package pays it from a wallet or from AGENT402_CREDITS_KEY. Local install: npx -y agent402-mcp.

Errors and behavior

• Every field is optional. An input the tool rejects returns an HTTP 4xx whose body carries error, tool, expected, required and example.
• A paid call that ends in any status of 400 or above is not charged over x402, MPP or a prepaid credits key: settlement is cancelled when the tool fails. The exception is a Tempo push credential, a transfer the buyer sent before the call: it settles before the tool runs, so if the tool then fails the payment is recorded as a refund owed to the paying wallet.
• Wallet-only: this tool reaches the network or stored state, so it has no proof-of-work tier. A prepaid card-credits key (Authorization: Bearer a402_...) also pays it.
• A GET or HEAD to /api/asset-transfers returns the same 402 quote, so the price can be read without a body.
• An Idempotency-Key header makes a retried paid call replay the first 200 instead of charging again (an answer larger than 1 MB is not replayed).

Paid call (JavaScript agent)

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

const client = new x402Client();
client.setSpendControls?.(false); // keep your own spending ceiling in code
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/asset-transfers", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
    "direction": "in",
    "category": [
      "erc20"
    ],
    "contracts": [
      "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
    ],
    "maxCount": 5,
    "network": "ethereum"
  }),
});

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