sats4ai-mcp

25+ AI tools paid with Bitcoin Lightning. No signup, no API keys, no KYC.

A remote MCP (Model Context Protocol) server that gives AI agents access to image generation, video creation, text generation, speech, OCR, audiobook conversion, email, SMS, voice cloning, and more — all paid per-use with Lightning Network micropayments.

Quick Setup

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "sats4ai": {
      "url": "https://sats4ai.com/api/mcp"
    }
  }
}

Claude Code

claude mcp add sats4ai --transport http https://sats4ai.com/api/mcp

Cursor

Add to your MCP settings:

{
  "mcpServers": {
    "sats4ai": {
      "url": "https://sats4ai.com/api/mcp"
    }
  }
}

stdio proxy (legacy MCP clients)

For clients that don't support remote HTTP servers, use the bundled stdio proxy:

npx sats4ai-mcp

Or in your config:

{
  "mcpServers": {
    "sats4ai": {
      "command": "npx",
      "args": ["sats4ai-mcp"]
    }
  }
}

Any MCP Client

The server URL is:

https://sats4ai.com/api/mcp

This is a remote HTTP server — no local process, no dependencies, no installation needed.

Related MCP server: PDF Reader MCP Server

Available Tools

AI Generation

Audio & Speech

Vision & Documents

Communication

Helper Tools

How It Works

1. Agent calls list_models to discover available models and pricing

2. Agent calls create_payment — gets a Lightning invoice

3. Payment is made via the agent's Lightning wallet (e.g., lightning-wallet-mcp)

4. Agent calls the tool (e.g., image, text) with the paymentId

5. Result is returned — base64 image, text, URL, etc.

No API keys. No accounts. No rate limits tied to identity. Just Bitcoin and AI.

Payment via Agent Wallets

Pair with a Lightning wallet MCP server so your agent can pay autonomously:

{
  "mcpServers": {
    "sats4ai": {
      "url": "https://sats4ai.com/api/mcp"
    },
    "lightning-wallet": {
      "command": "npx",
      "args": ["lightning-wallet-mcp"]
    }
  }
}

The agent uses lightning-wallet to pay invoices from sats4ai, enabling fully autonomous AI tool usage.

L402 API

For direct HTTP integration without MCP, use the L402 API:

# Step 1: Request -> get 402 + Lightning invoice
curl -X POST https://sats4ai.com/api/l402/image \
  -H "Content-Type: application/json" \
  -d '{"prompt": "a cat in space"}' -i

# Step 2: Pay the invoice with any Lightning wallet

# Step 3: Re-send with proof
curl -X POST https://sats4ai.com/api/l402/image \
  -H "Content-Type: application/json" \
  -H "Authorization: L402 <macaroon>:<preimage>" \
  -d '{"prompt": "a cat in space"}'

Full L402 docs: sats4ai.com/l402 | Code examples: sats4ai-l402-examples

Service Discovery

Machine-readable service manifest:

GET https://sats4ai.com/.well-known/l402-services

Programmatic Usage

const { SERVER_URL, TOOLS, getClaudeConfig } = require("sats4ai-mcp");

console.log(SERVER_URL);       // "https://sats4ai.com/api/mcp"
console.log(TOOLS);            // ["image", "video", "text", ...]
console.log(getClaudeConfig()) // { mcpServers: { sats4ai: { url: "..." } } }

Links

• Website: sats4ai.com

• MCP Docs: sats4ai.com/mcp

• L402 API Docs: sats4ai.com/l402

• L402 Code Examples: github.com/cnghockey/sats4ai-l402-examples

• Service Discovery: sats4ai.com/.well-known/l402-services

License

MIT