# Free Asset Radar x402 – ERC-20 Transfer Lookup

> Free Asset Radar x402 – ERC-20 Transfer Lookup is a paid API for AI agents from free-asset-radar-x402.besenok2018.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-30).

Fetches ERC-20 token transfer history for a given address or token, returning transfer count, direction, and amounts

## Facts

- Endpoint: GET https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/erc20-transfers?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/free-asset-radar-x402-erc-20-transfer-lookup-f3dd84d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YPKMGwS52cXSlExmj_q4G

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability free-asset-radar-x402-erc-20-transfer-lookup-f3dd84d2
```

Example prompt: Pull the ERC-20 transfer history for wallet address 0xAbC...123 on Ethereum and tell me how many USDC transfers came in and what the total amounts were.

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call ERC-20 transfer data without setting up a full blockchain indexer or RPC node. Ideal for autonomous agents that need on-demand token transfer history for a specific address at low cost ($0.002 USDC per call) via the x402 payment protocol.

## Known failure modes

- Invalid or malformed wallet address returns an error or empty result
- Unsupported network returns no data
- Missing required query parameters (address or token) may return a 400 error
- Rate limiting or payment failure via x402 protocol returns a 402 Payment Required
- Edge worker downtime may yield a 503 response

## How this service works

Stable edge-hosted x402 utilities for autonomous agents.

## Output

Returns a JSON object containing the token symbol, network name, a list of transfers (each with amount and direction 'in' or 'out'), and a total transfer count.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "symbol": "USDC",
  "network": "ethereum",
  "transfers": [
   {
    "amount": "1.25",
    "direction": "in"
   }
  ],
  "transferCount": 2
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/free-asset-radar-x402-erc-20-transfer-lookup-f3dd84d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from free-asset-radar-x402.besenok2018.workers.dev](https://www.zero.xyz/host/free-asset-radar-x402.besenok2018.workers.dev/llms.txt)