# MoneyTools Bitcoin Address Balance Lookup

> MoneyTools Bitcoin Address Balance Lookup is a paid API for AI agents from tools.moneytools.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-05).

Returns confirmed and pending BTC balance (in BTC and USD), transaction count, address type, and address reuse status for any Bitcoin address

## Facts

- Endpoint: GET https://tools.moneytools.dev/v1/btc-address?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-05
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/moneytools-bitcoin-address-balance-lookup-f1491a5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hvh65peSXso5Lxkx_JjVn

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 moneytools-bitcoin-address-balance-lookup-f1491a5b
```

Example prompt: Can you check the BTC balance and transaction history for Bitcoin address bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh — I want to know the confirmed and pending balances in both BTC and USD, the total transaction count, and whether the address has been reused.

## When to prefer this

Use this endpoint when you need on-demand Bitcoin address balance and metadata lookups without running your own Bitcoin node or subscribing to a heavyweight blockchain API. It is ideal for lightweight agent workflows that occasionally need BTC balance checks, since the free tier covers 10 calls/day and micropayment via x402 on Base handles overflow at $0.001/call. Prefer this over raw mempool.space API calls when you want a consistent, structured JSON response with USD conversion, address type classification, and reuse detection bundled together.

## Known failure modes

- Invalid or malformed Bitcoin address returns an error response
- Rate limit exceeded on the free tier (10/day) without payment method returns HTTP 402
- Network issues reaching mempool.space API may cause timeouts or partial data
- Very new or never-used addresses may return zero balances and zero tx count (not an error)
- Payment failure via x402 results in no charge and no data returned

## How this service works

Bitcoin address balance: Confirmed and pending BTC balance (USD), tx count, address type and reuse for any Bitcoin address (mempool.space public API). Free tier 10/day; then $0.001 via x402 (HTTP 402 + PAYMENT-REQUIRED) or X-API-Key credits. Not charged on failure. $0.001 USDC per call via x402 on Base. Run by MoneyTools.

## Output

A JSON object containing the confirmed balance and pending/unconfirmed balance (in BTC and USD), total transaction count, Bitcoin address type (e.g. P2PKH, P2SH, bech32/native SegWit), and an address-reuse flag. Also includes payment metadata (whether the call was charged, network, amount in USD, and transaction hash if paid via x402) and optional plan/partner hints.

## 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": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "examples": [
        "bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"
       ],
       "description": "BTC address"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "properties": {
      "payment": {
       "type": "object",
       "properties": {
        "charged": {
         "type": "boolean"
        },
        "network": {
         "type": "string"
        },
        "amountUsd": {
         "type": "string"
        },
        "transaction": {
         "type": [
          "string",
          "null"
         ]
        }
       }
      },
      "freeTier": {
       "type": "object"
      },
      "_moneytools": {
       "type": "object",
       "description": "optional plan / partner hints"
      }
     },
     "description": "Tool-specific JSON result (see llms.txt / openapi.json). Always includes payment info.",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/moneytools-bitcoin-address-balance-lookup-f1491a5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tools.moneytools.dev](https://www.zero.xyz/host/tools.moneytools.dev/llms.txt)