Thread Keeper MCP Server

Multi-agent shared brain across Claude Code/Desktop, Codex, Antigravity CLI (agy), Copilot, and VS Code. Cross-session memory, self-improving skill loops, and inter-agent signaling - one local MCP server turns parallel agent instances into a coordinated multi-agent system instead of N isolated chats.

People who work with codex, gemini and memory and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-30 · ★ 12 · #71 OF 321 MAINTAINED MEMORY · VERIFIED 2026-09-30

MIT · Python servers · how we verify → /methodology

01 · Install Thread Keeper

before you install - you'll need

Set THREADKEEPER_MEMORY_EGRESS before connecting.

Claude Code

claude mcp add po4erk91-thread-keeper -- uvx threadkeeper

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "po4erk91-thread-keeper": {
      "command": "uvx",
      "args": [
        "threadkeeper"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package threadkeeper - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.po4erk91 is GitHub-verified and matches the repo owner

03 · What Thread Keeper can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.18.4 · 2026-09-30

canonical skills over the stable MCP Skills extension (#336). · MCP 2026-07-28 discovery now declares io.modelcontextprotocol/skills and · serves deterministic skills/list / skills/get manifests with · origin-qualified…

v0.18.3 · 2026-09-28

a slim child no longer falls back to the full MCP config. When · its slim MCP file could not be written, a Claude child quietly ran with · every MCP server the user configured. spawn() now refuses with · ERR…

v0.18.2 · 2026-09-28

Codex children no longer load the user's whole Codex setup. · Every autonomous Codex child started all MCP servers, plugins and hooks from · ~/.codex/config.toml: computer use, browser, Drive, Trello, Sentry, Meta…

04 · Who maintains Thread Keeper

thread-keeper is maintained by po4erk91. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/po4erk91/thread-keeper
category: memory - ranked #71 of 321 actively-maintained memory servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-30)
registry: io.github.po4erk91/thread-keeper (active, first published 2026-06-14 · 2 versions)
packages: pypi:threadkeeper

06 · Thread Keeper FAQ

What is Thread Keeper?

Is Thread Keeper still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-30 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Thread Keeper?

Run `uvx threadkeeper`. The README documents one environment variable (THREADKEEPER_MEMORY_EGRESS) to set first. Set THREADKEEPER_MEMORY_EGRESS before connecting. You can also paste the ready-made client config above.

Does Thread Keeper run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Thread Keeper

Alternatives to Thread Keeper

Maintained memory servers if Thread Keeper isn't the fit.

Pairs well with

Servers that cover what Thread Keeper doesn't - only shown when the pairing reason fits the companion.

More memory MCP servers · Weasley DeepMind · Continuum · Kairn · Lambdacad MCP · Pseudolife Memory

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