TL;DR
witness is a Model Context Protocol (MCP) server. Second brain for Claude Code & OpenCode: distills how your patterns and knowledge evolve over time. Install with: npx -y @witness-ai/opencode. Source: https://github.com/IngTian/witness. Compatible with MCP clients such as Claude Desktop, Cursor, Cline and Windsurf.
witness
Second brain for Claude Code & OpenCode: distills how your patterns and knowledge evolve over time.
Install Command
npx -y @witness-ai/opencodeFrequently Asked Questions
witness is a Model Context Protocol server that Second brain for Claude Code & OpenCode: distills how your patterns and knowledge evolve over time.
You can install it by running the install command: `npx -y @witness-ai/opencode`. It then becomes available to any MCP-compatible client such as Claude, Cursor, Cline, Windsurf.
The witness MCP Server is compatible with any client that speaks the Model Context Protocol — including Claude, Cursor, Cline, Windsurf.
Check the project license on its repository before use.
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Details
- Agent Rank
- 53.1
- License
- Last Updated
- Aug 12, 2026
- Languages
- TypeScript
Client Compatibility
Speaks the Model Context Protocol — works with any compatible client.