# Blockchain Wallet Activity Lookup

> Blockchain Wallet Activity Lookup is a paid API for AI agents from x402-gateway-production-1f21.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

Retrieves recent ERC-20 token transaction activity for a given wallet address on Base or Ethereum networks, defaulting to USDC transfers.

## Facts

- Endpoint: POST https://x402-gateway-production-1f21.up.railway.app/chain/wallet-activity?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-wallet-activity-lookup-861ea3a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lUMwEKkSpDt5GMAdOxiR3

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 blockchain-wallet-activity-lookup-861ea3a1 -d '<json body>'
```

Example prompt: Can you pull the last 500 blocks of USDC activity on Base for wallet address 0xAbc123...? I want to see what transactions came in or out recently.

## When to prefer this

Use this endpoint when you need on-chain ERC-20 (especially USDC) transaction history for a specific wallet on Base or Ethereum, and want machine-payable per-call pricing without API key setup. Prefer it over block explorers when you need programmatic, agent-friendly access to wallet activity with cursor-based pagination and network selection.

## Known failure modes

- Invalid wallet address format returns an error
- Unsupported network value (not 'base' or 'ethereum') causes validation failure
- lookback_blocks exceeding 5000 is rejected by schema validation
- No transactions found returns an empty result set
- RPC node unavailability may cause timeout or partial data
- Missing required 'address' field returns a 400-level error

## How this service works

Machine-payable x402 utilities for hashing, Base64, UUID generation, unit and timezone conversion, realtime crypto market data, webpage/document extraction, URL-to-Markdown, metadata, RAG ingestion and deterministic website change detection.

## Output

Returns a JSON object with the wallet's recent ERC-20 token transfer events on the specified network (Base or Ethereum), including transaction details such as sender, recipient, amount, and block information for USDC or a specified contract, paginated via cursor.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "cursor": {
       "type": "integer",
       "minimum": 0
      },
      "address": {
       "type": "string"
      },
      "network": {
       "enum": [
        "base",
        "ethereum"
       ],
       "type": "string",
       "default": "base"
      },
      "contract": {
       "type": "string",
       "description": "ERC-20 contract; defaults to USDC on the selected network."
      },
      "lookback_blocks": {
       "type": "integer",
       "default": 1000,
       "maximum": 5000,
       "minimum": 1
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "ready"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-wallet-activity-lookup-861ea3a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-gateway-production-1f21.up.railway.app](https://www.zero.xyz/host/x402-gateway-production-1f21.up.railway.app/llms.txt)