# ChainVerdict Token Activity API

> ChainVerdict Token Activity API is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-19).

Returns on-chain activity data for a given ERC-20 token contract address on the Base blockchain

## Facts

- Endpoint: GET https://chainverdict.xyz/v1/data/activity/%7Btoken%7D?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainverdict-token-activity-api-83fec5e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y-n7mcmn-ruHeZxsE5PnF

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 chainverdict-token-activity-api-83fec5e5
```

Example prompt: Can you pull the on-chain activity data for the ERC-20 token at contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base?

## When to prefer this

Choose this endpoint when you need on-chain activity data specifically for ERC-20 token contracts deployed on the Base blockchain and are comfortable with micro-payment ($0.005 USDC) per-call pricing via the x402 protocol. Prefer this over free alternatives when you need reliable, pay-per-use access without subscription commitments.

## Known failure modes

- HTTP 402 returned if payment via x402 is not included or fails
- Invalid or non-existent contract address returns an error or empty data
- Contract address not on Base network may return no results
- Malformed address string causes validation failure
- Rate limiting or service unavailability returns 5xx errors

## How this service works

x402 v2 pay-per-call. Unpaid requests receive HTTP 402 with payment requirements.

## Output

Returns on-chain activity data for the specified ERC-20 token contract on the Base blockchain, likely including transaction counts, volume metrics, and recent activity history. Exact response fields depend on ChainVerdict's data schema; successful responses follow a JSON object structure. Unpaid requests return HTTP 402 with x402 payment requirements.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "addr"
     ],
     "properties": {
      "addr": {
       "type": "string",
       "description": "ERC-20 contract address on Base"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainverdict-token-activity-api-83fec5e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainverdict.xyz](https://www.zero.xyz/host/chainverdict.xyz/llms.txt)