OpenClaw
toolAn open-source gateway that connects AI agents to tools and skills across messaging platforms.
OpenClaw is an open-source AI gateway that provides agents with access to tools (called skills) across multiple messaging channels — Discord, Telegram, WhatsApp, and more. It acts as middleware between your agent and the outside world.
The gateway exposes an OpenAI-compatible HTTP API, so any agent framework that speaks the OpenAI protocol can use OpenClaw as a backend. Skills are not directly callable via API — instead, you send a chat message that prompts the agent to invoke the appropriate skill.
OpenClaw runs as a systemd service and communicates over WebSocket (primary) and HTTP (secondary). It takes a gateway-first approach to agent tooling, handling authentication, rate limiting, and tool discovery.