# Bitcoin Benji AI Extract — Private AI Inference with Lightning Payments

> Bitcoin Benji AI Extract — Private AI Inference with Lightning Payments is a paid API for AI agents from api.bitcoinbenji.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14).

Runs private AI-powered data extraction on submitted content, billed per-call via Lightning Network with no API keys required.

## Facts

- Endpoint: POST https://api.bitcoinbenji.com/ai/extract
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bitcoin-benji-ai-extract-private-ai-inference-with-lightning-payments-3002d5c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l5w-6HNtfMuq7NidqC2hU

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-benji-ai-extract-private-ai-inference-with-lightning-payments-3002d5c5 -d '<json body>'
```

Example prompt: Extract the key entities — names, dates, amounts, and contract terms — from this document text I'm pasting, using Bitcoin Benji's private AI extraction and pay the $0.025 fee via Lightning.

## When to prefer this

Choose this endpoint when you need private, pay-per-call AI extraction with no account setup, no API keys, and no subscriptions — ideal for agents that handle sensitive content and want to avoid storing credentials, or for sporadic workloads where a subscription is wasteful. Prefer over OpenAI/Anthropic direct APIs when anonymity, micropayment billing via Lightning, and zero-registration are priorities.

## Known failure modes

- 402 Payment Required — Lightning invoice not paid or L402 token missing/invalid
- 400 Bad Request — malformed request body or missing required content field
- 429 Too Many Requests — rate limit exceeded
- 500 Internal Server Error — AI inference failure or upstream model error
- Timeout — inference takes longer than expected for large payloads

## How this service works

L402-gated APIs: real-time Bitcoin mempool intelligence and private AI inference. Pay-per-call via Lightning. Zero API keys. Zero subscriptions.

## Output

Returns a JSON object containing AI-extracted structured fields from the submitted content — specific fields depend on the extraction task specified in the request body. Delivered as a direct JSON response after Lightning payment is settled.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bitcoin-benji-ai-extract-private-ai-inference-with-lightning-payments-3002d5c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.bitcoinbenji.com](https://www.zero.xyz/host/api.bitcoinbenji.com/llms.txt)