sats4ai.com

# Sats4AI > Bitcoin-powered AI tools. 40+ services — image, video, text, speech (602+ languages), transcription, translation, OCR, communication, file conversion. Pay per request with Lightning Network. No signup, no API keys, no KYC. ## How to connect MCP server endpoint: https://sats4ai.com/api/mcp ### Option 1: MCP client (recommended for agents) Add to your MCP settings JSON: { "mcpServers": { "sats4ai": { "url": "https://sats4ai.com/api/mcp" } } } Works with Claude Desktop, Claude Code, Cursor, Windsurf, and any MCP-compatible client. The server handles tool discovery, schema, and invocation via JSON-RPC over HTTP. ### Option 2: L402 HTTP API (for direct HTTP callers) GET https://sats4ai.com/api/l402/{service} — returns schema + 402 with Lightning invoice POST https://sats4ai.com/api/l402/{service} — pay invoice, include Authorization: L402 {macaroon}:{preimage} No MCP needed. Any HTTP client works. Full docs: https://sats4ai.com/docs ### Option 3: npm package (for Node.js / stdio transport) npm install sats4ai-mcp npx sats4ai-mcp Runs locally, communicates via stdio. Same tools, same payment flow. ## How payments work Every paid tool requires a Lightning Network micropayment. The flow: 1. Call create_payment(toolName="generate_image") → returns { paymentId, invoice, amountSats } 2. Pay the Lightning invoice (BOLT11) 3. Call generate_image(paymentId="...", prompt="...") → returns result Free tools (no payment): list_models, get_model_pricing, check_payment_status, check_job_status, get_job_result, get_cost_estimate, get_error_codes, list_planned_services, vote_on_service, confirm_ai_call. ## Available tools and pricing ### Instant tools (result returned immediately) - generate_image: Text to image. 100-200 sats. - edit_image: Edit images with natural language. 200-450 sats. - generate_text: Frontier LLMs. Per-character pricing (100-1000 chars/sat). - translate_text: 119 languages. 1 sat per 1000 chars. - generate_music: