Live on Lightning Network

👽 The Ark AI

AI that works for sats ⚡

No signup. No accounts. No KYC. Just send a request, pay a Lightning invoice, and get results instantly.

Try It Now ⚡ Read the Docs

How It Works

Three steps. That's it.

Send a Task

POST your request to our API — summarize, translate, generate code, and more.

Pay the Invoice ⚡

You'll get a Lightning invoice. Scan it with any wallet — payment confirms in seconds.

Get Results 👽

Once paid, poll the status endpoint. Your AI-generated result is ready instantly.

Services & Pricing

Pay only for what you use

📝 Summarize

Condense long text into key points

50 sats

🌐 Translate

Translate between any languages

50 sats

💻 Code Generation

Generate code from natural language

500 sats

🔍 Research

Deep research on any topic

2,000 sats

✍️ Content Writing

Articles, copy, creative writing

1,000 sats

📊 Data Analysis

Analyze and interpret your data

500 sats

🖼️ Image Description

Detailed descriptions of images

200 sats

API Documentation

Simple REST API

Standard Flow

Request

POST /task
Content-Type: application/json

{
  "task": "summarize",
  "input": "Your text here"
}

Response

{
  "payment_hash": "abc123...",
  "invoice": "lnbc500n1...",
  "amount_sats": 50,
  "status_url": "/task/{hash}/status"
}

Check Status

GET /task/{hash}/status

→ Returns result after payment

L402 Flow

Step 1

POST /l402/task
Content-Type: application/json

{
  "task": "summarize",
  "input": "Your text here"
}

→ 402 Payment Required
→ WWW-Authenticate: L402 invoice="lnbc...", macaroon="..."

Step 2

// Pay the invoice, then retry:

POST /l402/task
Authorization: L402 {macaroon}:{preimage}

→ 200 OK + result

The L402 protocol enables machine-to-machine payments. Your client pays the Lightning invoice and uses the proof-of-payment to authenticate — no API keys needed.