L402

Lightning Labs launched Wavelength, a toolkit enabling developers and AI agents to integrate self-custodial Bitcoin payments via a non-custodial API without managing nodes or liquidity. The tool supports on-chain Bitcoin, Lightning payments, and off-chain transfers with interoperability via BOLT 11 invoices. Wavelength is available on Signet and testnet, with mainnet access by invitation.

Lightning has 1,185 L402 services, but most agents are unaware of their existence or how to find reliable ones. The services offer various data, including financial information and AI inference, at a cost ranging from $0.001 to $0.05 per call. A public leaderboard is available to rank these services.