Serena MCP: the IDE for your agent MCP Server

by oraios Your server? Claim it

local only

Serena MCP: the IDE for your agent runs on your own machine — the client starts it, so there is no endpoint to ping. 28 042 installs a week from pypi. Last commit 17 Sep 2026.

A powerful toolkit for coding, providing semantic retrieval and editing capabilities.

Installs per day peak 9 588 · avg 4 950 · +13% w/w

a month agotoday

28 042

Installs / week

pypi · serena-agent

29543

Stars

97 open issues

17 Sep 2026

Last commit

0 releases in 90 days

—

License

Python

What the code does

We read the source, 20 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Checks whether it runs in a sandbox [пакет] src/serena/util/exception.py:30, src/serena/util/exception.py:32

    if os.environ.get("CI") or os.environ.get("CONTAINER") or os.path.exists("/.dockerenv"):

File ships in the package but is absent from the source [пакет] src/serena/util/ls_diagnostics.py:1

этот файл ставится пользователю, но в репозитории его нет

Runs an external command repo_dir_sync.py:57, [пакет] repo_dir_sync.py:57, [пакет] src/serena/agent.py:1290 и ещё 12

    os.system(f"git commit --file={commitMsgFilename}")

Builds a file path from a variable repo_dir_sync.py:79, [пакет] repo_dir_sync.py:79, [пакет] src/serena/code_editor.py:90 и ещё 81

        return os.path.exists(os.path.join(self.pathToLibInThisRepo, self.SYNC_COMMIT_ID_FILE_LIB_REPO))

Runs with shell=True [пакет] src/serena/agent.py:1292, [пакет] src/serena/util/shell.py:30, [пакет] src/solidlsp/language_servers/common.py:115 и ещё 6

                    shell=True,

Unsafe deserialization [пакет] src/serena/hooks.py:205, [пакет] src/serena/util/yaml.py:74, src/serena/hooks.py:213 и ещё 2

                    return pickle.load(f)

Executes code built at runtime src/serena/repl/repl.py:354

            exec(compile(ast.Module(body=statements, type_ignores=[]), self.SOURCE_NAME, "exec"), namespace)

Known vulnerability in the package serena-agent · GHSA-37h2-6p4f-mp3q

Known vulnerability in the package serena-agent · PYSEC-2026-3061

Dumps the whole environment [пакет] src/solidlsp/language_servers/haskell_language_server.py:91, src/solidlsp/language_servers/haskell_language_server.py:92

        env = dict(os.environ)

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add serena -- uvx serena-agent

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "serena": {
      "args": [
        "serena-agent"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.serena]
command = "uvx"
args = ["serena-agent"]

.cursor/mcp.json

{
  "mcpServers": {
    "serena": {
      "args": [
        "serena-agent"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "serena": {
      "args": [
        "serena-agent"
      ],
      "command": "uvx"
    }
  }
}

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Serena MCP: the IDE for your agent — questions

Answers built from our own checks of this server.

Why is there no uptime for Serena MCP: the IDE for your agent?

Serena MCP: the IDE for your agent runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package serena-agent was installed 28 042 times last week.

How do I connect Serena MCP: the IDE for your agent?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls serena-agent straight from pypi; nothing to host, nothing to sign up for.

How many people use Serena MCP: the IDE for your agent?

The pypi package serena-agent was installed 28 042 times in the last week. Week over week that is +13%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Serena MCP: the IDE for your agent open source?

We cannot say either way: written in Python, 29 543 stars on GitHub and 97 open issues, but we could not determine the licence, and without one the code is not open source by default.