Woofun AI reports that Lightning Labs has released the alpha version of Wavelength, a toolkit designed to provide self-custodial bitcoin payment functionality for developers and AI agents. The solution utilizes simple, non-custodial APIs to eliminate the operational burdens of running nodes, managing channels, or acquiring liquidity. Wavelength supports on-chain bitcoin, Lightning Network payments, and an Ark-like settlement layer, with each off-chain transaction using standard BOLT 11 invoices to ensure interoperability. AI agents can interact with the API via the Model Context Protocol (MCP) to hold balances and pay for services in minimal units.