# ChainScope Address Activity

> ChainScope Address Activity is a paid API for AI agents from chainsscope.duckdns.org, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).

Retrieves recent transaction activity for a wallet address on Ethereum, Base, Bitcoin, or Solana, returning a list of transactions with value, direction, counterparty, and timestamp.

## Facts

- Endpoint: POST https://chainsscope.duckdns.org/tools/address-activity
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainscope-address-activity-995a85b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0nbJ50b4HPQIPwY32_RPz

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 chainscope-address-activity-995a85b8 -d '<json body>'
```

Example prompt: Can you pull up the recent transaction activity for Ethereum address 0x1f5f8474fA0dc1Fde79187abd68Ef8Ea15ADAe34 — I want to see what's been sent and received, who the counterparties are, and when each transfer happened.

## When to prefer this

Choose this endpoint when you need a unified, cross-chain transaction history lookup without building separate integrations for Ethereum, Base, Bitcoin, and Solana. It is ideal for agents that need to audit wallet behavior, verify counterparty activity, or trace fund flows across multiple chains through a single consistent interface.

## Known failure modes

- Invalid or malformed address for the specified chain returns an error
- Unsupported chain identifier causes a rejection
- Address with zero transaction history returns an empty activity array
- Network congestion or node unavailability on the target chain causes a timeout
- Incorrect x402 payment or insufficient USDC balance results in payment failure

## How this service works

Recent transaction history for an address, normalized across Ethereum, Base, Bitcoin, and Solana -- direction, counterparty, and value where the chain's data model makes that derivable.

## Output

Returns a JSON object containing the chain name, the queried address, and an array of activity records — each with a transaction hash, the value transferred, the direction (in or out), the counterparty address, and an ISO 8601 timestamp of when the transaction occurred.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "enum": [
    "ethereum",
    "base",
    "bitcoin",
    "solana",
    "arbitrum",
    "optimism",
    "polygon"
   ],
   "type": "string"
  },
  "limit": {
   "type": "integer",
   "description": "1-100, default 20"
  },
  "address": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "ethereum",
  "address": "0x1f5f8474fA0dc1Fde79187abd68Ef8Ea15ADAe34",
  "activity": [
   {
    "value": "1.0",
    "tx_hash": "0xabababababababababababababababababababababababababababababababab",
    "direction": "out",
    "timestamp": "2026-07-20T12:00:00+00:00",
    "counterparty": "0xbbbb000000000000000000000000000000bbbb"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainscope-address-activity-995a85b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainsscope.duckdns.org](https://www.zero.xyz/host/chainsscope.duckdns.org/llms.txt)