OpenClaw SDK

Open-source component (Developer Toolkit) O OpenClaw Core

Basic Information

  • Company/Brand: OpenClaw / OpenClaw Foundation
  • Country/Region: Global
  • Official Website: https://docs.openclaw.ai
  • Type: Open-source component (Developer Toolkit)
  • Established: Concurrent with OpenClaw

Product Description

The OpenClaw SDK is a toolkit provided by OpenClaw for developers, primarily existing in the form of the OpenClaw Plugin SDK. It enables developers to write deep gateway extensions using TypeScript or JavaScript, adding new integrations, custom workflow actions, or modifying core behaviors.

At the heart of the SDK is the OpenClawPluginApi interface, through which plugins register various components by implementing the register function and receiving this API. Registrable components fall into four major categories: Providers (model, voice, image, web search providers), Tools (factory functions for creating AnyAgentTool instances), Hooks (handlers for system events and prompt injections), and Channels (message platform integrations).

The OpenClaw npm package (openclaw) is also part of the SDK, providing core type definitions and utility functions. Developers can use it to quickly build applications that interact with the OpenClaw gateway. The SDK follows OpenClaw's modular design philosophy, with certain plugin types being "exclusive" (only one active instance per role at a time), managed through the plugins.slots configuration.

Core Features

  • OpenClawPluginApi core interface
  • Four-component registration (Providers / Tools / Hooks / Channels)
  • TypeScript/JavaScript support
  • npm package distribution (openclaw)
  • Type definitions and utility functions
  • Exclusive plugin slot management
  • System event hooks
  • Prompt injection mechanism
  • Deep integration with the gateway
  • Hot-reloading support

Business Model

Completely open-source and free, distributed via npm.

Target Users

  • OpenClaw plugin and extension developers
  • Advanced users requiring custom AI agent behaviors
  • Developers building OpenClaw ecosystem tools
  • Development teams with enterprise customization needs

Competitive Advantages

  • Native TypeScript support, type safety
  • Clear component registration API
  • Four major component categories covering all extension needs
  • Standard npm distribution
  • Deep integration with the OpenClaw gateway
  • Hot-reloading reduces development iteration time

Market Performance

The SDK's usage has driven rapid growth in the OpenClaw plugin ecosystem. Numerous third-party developers and organizations have used the SDK to build various extensions such as message channel integrations and MCP server connectors.

Relationship with the OpenClaw Ecosystem

The SDK is the foundation of the OpenClaw developer ecosystem, serving as the standard toolkit for building plugins, channel integrations, and tool extensions. It lowers the barrier for third-party developers to participate in the OpenClaw ecosystem, driving the growth of the entire ecosystem.

Information Sources

External References

Learn more from these authoritative sources: