LN+ API version 2.4 introduces a set of improvements designed to make automation easier, safer, and more complete for Lightning node operators.

The biggest addition is Node API Keys. Until now, authenticated API requests required a Lightning message and signature. That flow remains fully supported, but integrations can now use reusable bearer credentials instead. Each key is tied to a single verified node, can be scoped to specific permissions, expires within one year, and can be revoked at any time. This makes the API much more practical for bots, dashboards, scripts, and long-running services.

The new scoped permission model gives operators tighter control over integrations. Available scopes include read access, swap management, Liquidity Pool management, social actions such as comments and ratings, notification updates, and account preference updates. API keys are rate limited and sensitive credential data is filtered from logs.

Version 2.4 also expands API coverage for the Liquidity Pool. Clients can now discover pool nodes, create and manage credit transaction offers, approve or reject incoming offers, mark channel openings, view pool todos, inspect accounting, and interact with pool transaction comments and ratings.

Existing API clients do not need to change. The current Lightning signature authentication flow and /api/2 endpoint structure remain supported. API 2.4 is an additive upgrade: more automation options, better security controls, and broader access to the workflows node operators already use on LN+.