Nexus MCP

MCP server that delegates tasks to coding agents - Claude Code via the Claude Agent SDK and Codex via the Codex App Server - from any MCP client. It runs locally over stdio via the published package.

People who work with ai orchestration, cli tools and fastmcp 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 · ★ 4 · #89 OF 250 MAINTAINED CODING AGENT · VERIFIED 2026-09-30

MIT · Python servers · how we verify → /methodology

01 · Install Nexus MCP

Claude Code

claude mcp add j7an-nexus-mcp -- uvx nexus-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "j7an-nexus-mcp": {
      "command": "uvx",
      "args": [
        "nexus-mcp"
      ]
    }
  }
}

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 nexus-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.j7an is GitHub-verified and matches the repo owner

03 · What Nexus MCP can do

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

Latest releases

v2.0.1 · 2026-09-26

update shared-workflows pins to v4.8.1 · bump the minor-and-patch group across 1 directory with 2 updates

v2.0.0 · 2026-09-26

publish GitHub releases instead of drafts · make Claude Agent SDK the default claude backend · trim OS matrix to ubuntu+windows; declare Python 3.14 support · remove unused config getters · simplify literal core export…

v1.1.0 · 2026-09-19

bump the all-actions group with 6 updates · bump the minor-and-patch group across 1 directory with 3 updates · raise FastMCP baseline to 3.4.7 · bump the all-actions group across 1 directory with 2 updates · add…

04 · Who maintains Nexus MCP

nexus-mcp is maintained by j7an. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/j7an/nexus-mcp
category: coding agent - ranked #89 of 250 actively-maintained coding agent servers as of 2026-09-30.
release cadence: 5 releases in the last 90 days (latest 2026-09-26)
registry: io.github.j7an/nexus-mcp (active, first published 2026-03-22 · 12 versions)
packages: pypi:nexus-mcp

06 · Nexus MCP FAQ

What is Nexus MCP?

MCP server that delegates tasks to coding agents - Claude Code via the Claude Agent SDK and Codex via the Codex App Server - from any MCP client. It runs locally over stdio via the published package.

Is Nexus MCP still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-30 and it shipped 5 releases in the last 90 days. We re-verify nightly.

How do I install Nexus MCP?

Run `uvx nexus-mcp`. You can also paste the ready-made client config above.

Does Nexus MCP 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 Nexus MCP

Alternatives to Nexus MCP

Maintained coding agent servers if Nexus MCP isn't the fit.

Pairs well with

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

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