# BIN Checker API (x402 Alert)

> BIN Checker API (x402 Alert) is a paid API for AI agents from x402-alert.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Looks up bank identification number (BIN) details to identify the issuing bank, card type, and country for a given card prefix.

## Facts

- Endpoint: POST https://x402-alert.vercel.app/api/bin-checker
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bin-checker-api-x402-alert-68423a9d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PRfT-9Kpp7MPdoR7OPio0

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 bin-checker-api-x402-alert-68423a9d -d '<json body>'
```

Example prompt: Can you look up the BIN 424242 and tell me which bank issued it, what card type it is, and what country it's from?

## When to prefer this

Use this endpoint when you need fast, per-call BIN lookups with micropayment pricing via USDC on Base (x402 protocol), especially for agent workflows that need pay-as-you-go card validation without a subscription. Prefer this over subscription BIN databases when call volume is low or unpredictable.

## Known failure modes

- Invalid or unrecognized BIN returns empty or error result
- BIN not found in database returns no data
- Malformed input (non-numeric or too short) causes request failure
- Payment failure via x402 protocol blocks the request
- Network timeout on Vercel serverless function

## How this service works

14 paid financial API endpoints. Pay with USDC on Base using x402 protocol.

## Output

Returns structured data about the BIN including the issuing bank name, card brand (Visa, Mastercard, etc.), card type (debit/credit/prepaid), and country of issuance.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bin-checker-api-x402-alert-68423a9d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-alert.vercel.app](https://www.zero.xyz/host/x402-alert.vercel.app/llms.txt)