Real projects from the directory · stars live from GitHub · sorted by popularity.
The neutral micropayment router for autonomous agents. A single HTTP client that intercepts '402 Payment Required', routes across x402, L402, and MPP, persists credentials as recoverable assets, enforces per-envelope budgets, and emits a structured trace.
⭐ 31Python
540 security tests for AI agent systems — MCP, A2A, x402/L402, decision governance, benchmark integrity, skill supply chain. AIUC-1 pre-cert, NIST AI 800-2 aligned, MCP tool-poisoning reproduction. v4.9.1
⭐ 20Python
A neutral landscape analysis of AI agent payment protocols (x402, MPP, L402, Google AP2, Visa TAP + ICC, Mastercard Agent Pay, Amex ACE, Google/Shopify UCP, OpenAI ACP, and others). Maintained by Genesis Software Group, Copenhagen. Updated April 2026. CC BY 4.0.
⭐ 9
MCP Server for Lightning Faucet - Give your AI agent a Bitcoin wallet
⭐ 9JavaScript
Give your AI agents a fetch() that pays. Multi-protocol, multi-chain, open source.
⭐ 6TypeScript
MCP server for 402 Index: discover 15,000+ paid API endpoints across L402, x402, and MPP
⭐ 3JavaScript
Sovereign oracle protocol — cryptographically signed data over Lightning sats (L402) and USDC on Base (x402). 11 feeds, 9 exchanges, DLC attestations, MCP server. No API keys, no accounts, no trust.
⭐ 2Python
Any API becomes a Lightning toll booth in one line. L402 middleware for Express, Hono, Deno, Bun, and Workers.
⭐ 2TypeScript
Enable AI agents to access paid APIs across multiple protocols and chains with automated payment and data retrieval in one call.
⭐ 1TypeScript
Announce HTTP 402 services on Nostr for decentralised discovery. Kind 31402 parameterised replaceable events.
⭐ 1TypeScript
Buyer-side HTTP 402 runtime and surface inspector for autonomous agents: inspect, pay, recover, verify, and trace across L402, x402, and MPP.
⭐ 0Python
402 client MCP - AI agents discover, pay for, and consume L402 + x402 APIs
⭐ 0TypeScript
Lightning-paid AI inference - monetise any OpenAI-compatible endpoint in 30 seconds
⭐ 0TypeScript
JavaScript client library for L402 (HTTP 402 Payment Required with Lightning Network) - pay-per-request APIs
⭐ 0TypeScript
Go client library for L402 (HTTP 402 Payment Required with Lightning Network) - pay-per-request APIs
⭐ 0Go
This contradiction card documents Coinbase’s orchestration inflation via HTTP status code rebranding, wallet-based identity simulation, and semantic laundering. It proves that X402, L402, MCP, and EVMAUTH are post-filing simulation artifacts—not prior art.
⭐ 0
Universal payment SDK for AI agents, MCP servers, and automated pipelines. Bridges L402 (Lightning) and x402 (USDC) transparently.
⭐ 0TypeScript
MCP server for 402 Index — search 15,000+ paid API endpoints across L402, x402, and MPP protocols with real-time health monitoring
⭐ 0JavaScript/TypeScript
Cross-protocol payment router for AI agents. Handles x402 (USDC), L402 (Lightning), and Solana SPL payments transparently.
⭐ 0Go
Mycelia Signal sovereign price oracle plugin for ElizaOS — cryptographically signed price attestations via Lightning (L402) or USDC on Base (x402)
⭐ 0TypeScript