Boltwork

This connects Claude to Boltwork's pay-per-use AI services using Bitcoin Lightning and the L402 protocol. You get tools for PDF summarization, code review, webpage extraction, translation across 24 languages, document comparison, and persistent agent memory. Payments happen automatically in the background via NWC (Alby, Mutiny), LNbits, Strike, or Phoenixd. No API keys or subscriptions. Two trial tools work immediately with zero setup for testing code review and summarization. Costs range from 5 sats for memory retrieval to 2000 sats for full code reviews. Useful when you want Claude to handle document processing or code analysis tasks without managing traditional API credentials, just microtransactions per call.