Production Ready

Payment Rails for AI Agents

L402 protocol support with sub-cent precision. Give your AI agents the ability to pay for APIs, data, and services autonomously.

L402 Protocol
Sub-cent Precision
API-First

For AI Agents: MCP Server

Give your AI agent a Bitcoin wallet. One command, zero API keys.

Terminal
npx lightning-faucet-mcp

Self-registers on first run. Works with Claude Code, Cursor, and any MCP client.

Claude Code Config
{
  "mcpServers": {
    "lightning-faucet": {
      "command": "npx",
      "args": ["lightning-faucet-mcp"]
    }
  }
}

Add to ~/.claude/settings.json

For Developers: L402 API

Pay-per-request via Lightning. No signup required.

Terminal
# 1. Request returns 402 with Lightning invoice
curl -i https://lightningfaucet.com/api/l402/fortune

# 2. Pay the invoice, get macaroon + preimage
# 3. Make authenticated request
curl https://lightningfaucet.com/api/l402/fortune \
  -H "Authorization: L402 ${MACAROON}:${PREIMAGE}"
1 sat Minimum Payment
<100ms Avg Latency
24/7 Availability

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