OpenClaw API

Open-source component (External API interface) O OpenClaw Core

Basic Information

  • Company/Brand: OpenClaw / OpenClaw Foundation
  • Country/Region: Global
  • Official Website: https://docs.openclaw.ai
  • Type: Open-source component (External API interface)
  • Founded: Concurrent with OpenClaw

Product Description

The OpenClaw API is a programming interface provided by OpenClaw, enabling external applications and services to interact with OpenClaw agents. The API adopts a modular architecture, orchestrating various LLMs, communication channels, and service tools through standardized interfaces, ensuring high availability, security, and scalability at each integration layer.

The OpenClaw API system includes three types of extensions: Skills (natural language-driven API integrations defined via SKILL.md files), Plugins (deep gateway extensions written in TypeScript or JavaScript), and Webhooks (HTTP endpoints where external systems POST). All Skills adhere to the standard OpenAPI specification, leveraging the latest Function Calling technology, allowing agents to autonomously decide when to invoke external tools.

The gateway ensures millisecond-level message synchronization across different terminals through high-performance WebSocket connections and can securely push external events (such as Gmail alerts) via unified Token authentication. Developers can use the OpenClaw Plugin SDK to write plugins in TypeScript, adding new integrations, custom workflow actions, or modifying core behaviors. Multiple third-party platforms (such as OpenRouter, AI/ML API, Composio) have provided OpenClaw integration guides.

Core Features

  • High-performance WebSocket gateway (millisecond-level synchronization)
  • Three types of extensions (Skills / Plugins / Webhooks)
  • OpenAPI standard specification
  • Function Calling for autonomous tool invocation
  • Unified Token authentication
  • Plugin SDK (TypeScript/JavaScript)
  • External event push (e.g., Gmail)
  • Multi-LLM provider support interface
  • Channel management API
  • Session management API

Business Model

The API itself is completely open-source and free. Third-party API relay services (such as AI/ML API, OpenRouter) may have their own pricing models.

Target Users

  • Application developers (building applications based on OpenClaw)
  • System integrators
  • Automation workflow designers
  • Enterprises needing to integrate OpenClaw into existing systems
  • Third-party tool and service providers

Competitive Advantages

  • Standardized OpenAPI specification
  • High-performance WebSocket real-time communication
  • Flexible three-layer extension mechanism
  • TypeScript/JavaScript Plugin SDK
  • Rich third-party integration ecosystem
  • Unified authentication and security mechanisms

Market Performance

The OpenClaw API ecosystem is rapidly growing. Platforms such as OpenRouter, AI/ML API, Composio, and Z.AI have provided OpenClaw integration documentation. LumaDock has released a custom API integration guide. Moonshot AI has also provided a comprehensive guide to the OpenClaw API.

Relationship with the OpenClaw Ecosystem

The API is the standardized interface connecting OpenClaw with the external world and serves as the foundation for building higher-level applications and services. It elevates OpenClaw from a standalone AI assistant to a programmable AI agent platform, supporting third-party developers in building customized solutions based on OpenClaw.

Sources

External References

Learn more from these authoritative sources: