# Bitcoin Address Balance Lookup

> Bitcoin Address Balance Lookup is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Returns the current USDC balance of a given Bitcoin address via a pay-per-call x402 micropayment

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/bitcoin/bitcoin-address-balance?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bitcoin-address-balance-lookup-b5d7e3f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gpTJp5wyf1I_Ynmy_jbPL

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 bitcoin-address-balance-lookup-b5d7e3f4
```

Example prompt: What's the current Bitcoin balance for address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na?

## When to prefer this

Use this endpoint when you need a no-signup, pay-per-call Bitcoin address balance lookup with micropayment authentication via x402 and USDC on Base. It is ideal for AI agents that need occasional on-chain Bitcoin data without maintaining API keys or subscriptions.

## Known failure modes

- Invalid Bitcoin address format returns an error response
- Address not found on-chain returns zero balance or error
- Payment failure via x402 causes request to be rejected before processing
- Network or provider timeout returns a non-ok status
- Malformed schema parameter may yield unexpected results

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with an 'ok' and 'paid' status flag, along with the Bitcoin address balance (likely in satoshis or BTC), potentially including UTXO count or transaction history metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bitcoin-address-balance-lookup-b5d7e3f4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)