OpenCoder: the open source version of Claude Code

Try it out:

npx opencoder@latest

bunx opencoder@latest

Or try the beta channel:

npx opencoder@next

Overview

• Complete Claude Code replacement
• Built on top of the Vercel AI SDK. Fully compatible with the AI SDK model.
• Supports any LLM providers that the AI SDK supports (OpenAI, Anthropic, Google, etc.)
• Cross-platform shell: which means supports Windows, Linux, and MacOS.
• 60 FPS UI rendering, powered by React concurrent rendering

Demo

Features

1. Built on top of the Vercel AI SDK

OpenCoder is built on top of the Vercel AI SDK. It is fully compatible with the AI SDK model, any official or community model supported by the AI SDK will work with OpenCoder:

import { ollama } from 'ollama-ai-provider'; // read more: https://sdk.vercel.ai/providers/community-providers/ollama
import type { Config } from 'opencoder';

export default {
  model: ollama('qwq'),
} satisfies Config

2. MCP makes it easy (WIP)

Integrate powerful MCP capabilities into your workflow in 1 step. OpenCoder provides ready-to-use MCP tools that can be implemented with just a few lines of code:

import { playwright } from 'opencoder/mcp';

export default {
  mcp: [playwright()],
} satisfies Config

3. Cross-platform shell

OpenCoder has a cross-platform shell that supports Windows, Linux, and MacOS. Powered by Deno shell

Available tools

• Read file
• Write file
• Edit file
• Memory read
• Memory write
• Think
• Planning
• Grep: powered by @vscode/ripgrep

Roadmap

• Tool confirmation dialog
• Documentation
• Add MCP support
• Add auto-import MCP tools from vscode/mcp.json or cursorrules/mcp.json
• Add more examples
• Prebuilt MCP tools (import { playwright } from "opencoder/mcp")
• Tools confirmation dialog
• Proper release process (changeset + changelog)
• Add more tests

Contributions are welcome!