Developer Tools stdio

Serena

Name: Serena
Author: oraios

Created by oraios

Turns an LLM into a coding agent that works directly on your codebase by providing semantic retrieval and editing capabilities.

How to Connect & Install

Select your client or environment below to copy the verified, ready-to-run installation configuration.

1-line autonomous agent setup instruction. Paste into Claude Code, Codex CLI, or Cursor Agent:

Fetch and configure Model Context Protocol (MCP) server Serena from https://www.fastmcp.dev/server/serena

Agents automatically discover, install, and execute the server spec without manual token setup.

Connect via direct Stateless MCP v2 / Streamable HTTP endpoint or JSON-RPC:

https://github.com/oraios/serena

Stateless edge endpoint compliant with MCP 2024-11-05 and v2 draft protocol specs.

Includes server instructions and tool definitions for Claude:

claude mcp add serena -- npx -y serena

Run in terminal to register server in current project or pass --scope user for global availability.

Configures server instructions and tools for OpenAI Codex & ChatGPT Desktop:

[mcp_servers.serena]
command = "npx"
args = ["-y","serena"]

Applies to ChatGPT Desktop app, Codex CLI, and IDE extension across your Codex host.

Add to Cursor project settings (.cursor/mcp.json) or Cursor Settings > Features > MCP:

{
  "mcpServers": {
    "serena": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "serena"
      ]
    }
  }
}

Commit to version control to allow teammates to connect immediately.

Install as an autonomous Agent Skill using the standard skills CLI:

npx skills add https://github.com/oraios/serena

Standard agent skill installer compatible with Claude Code, Cursor, and agy harnesses.

Server Guidance & Instructions OpenAI & Claude Spec Compliant

Serena: Turns an LLM into a coding agent that works directly on your codebase by providing semantic retrieval and editing capabilities. Key capabilities: Integration with LLMs via MCP server; Language server protocol (LSP) support for multiple programming languages; Semantic code retrieval and editing capabilities.

Codex and Claude read this instruction prompt during initialization to orchestrate cross-tool workflows and rate limits.

Top Core Functions

01 Integration with LLMs via MCP server

02 Language server protocol (LSP) support for multiple

03 Semantic code retrieval and editing capabilities