# ChainQuery Bitcoin Address Intelligence

> ChainQuery Bitcoin Address Intelligence is a paid API for AI agents from intel.chainquery.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns on-chain balance, received/spent flows, quantum exposure risk, and best-effort labels/tags for a given Bitcoin address

## Facts

- Endpoint: GET https://intel.chainquery.com/v1/address/:addr
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainquery-bitcoin-address-intelligence-32e57e97
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AZ-gN0zpt_-42IE1RIMgg

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 chainquery-bitcoin-address-intelligence-32e57e97
```

Example prompt: What's the current balance, total received, total spent, and quantum exposure risk for Bitcoin address bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh? Also tell me if it has any known labels.

## When to prefer this

Choose this endpoint when you need Bitcoin-native on-chain data for a specific address without registering for an API key — especially when you want balance, flow analysis, quantum exposure risk, and entity labels in a single call. Prefer this over blockchain explorers or custodial analytics APIs when you want programmatic, pay-per-use, no-signup access to address intelligence.

## Known failure modes

- Invalid or malformed Bitcoin address returns an error response
- Address exists on-chain but has no transaction history — may return zero values
- Labels/tags are best-effort and may be absent for unknown addresses
- Quantum exposure data may not be available for all address types
- x402 payment failure results in a 402 Payment Required response
- Service outage or network issues may cause timeouts or 5xx errors

## How this service works

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Per-address balance, received/spent flows, quantum exposure, and best-effort labels/tags.

## Output

Returns a JSON object with the Bitcoin address's current balance, total received, total spent, quantum exposure indicator, best-effort labels and tags, and a data freshness timestamp (as_of). No API key required; payment is made per-call via x402.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "as_of": {
       "description": "data freshness timestamp"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainquery-bitcoin-address-intelligence-32e57e97/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.chainquery.com](https://www.zero.xyz/host/intel.chainquery.com/llms.txt)