Spec Left MCP Server

SpecLeft keeps feature intent and test coverage aligned by turning plans into version-controlled specs, then generating pytest test skeletons from those specs. It runs locally over stdio via the published package.

People connecting maps & location tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-04-15 · ★ 3 · #37 OF 56 MAINTAINED MAPS & LOCATION · VERIFIED 2026-08-25

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Spec Left

Claude Code

claude mcp add specleft-specleft -- uvx specleft

Claude Desktop / Cursor / VS Code - add to config

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

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 Apache-2.0 - declared in the repository

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

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

03 · What Spec Left can do

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

Latest releases

v0.4.0 · 2026-02-26

Publish MCP Pipeline · Add MCP publish workflow · MCP Fix Publish pipeline · SpecLeft becomes fully open source · Bump python-frontmatter from 1.0.1 to 1.1.0 · Bump pyyaml from 6.0.2 to 6.0.3

v0.3.0 · 2026-02-22

Local agent github workflow · Align CLI version with package metadata (#87) · Add SpecLeft skill file security and integrity workflow (#95) · Optimize CLI output defaults for agent efficiency (#94) · Add MCP server for…

v0.2.2 · 2026-02-11

Fix skeleton/validate/stats not finding plan-generated specs

04 · Who maintains Spec Left

SpecLeft is maintained by specleft. It's the only MCP server we track from this author; the repo dates to Jan 2026.

05 · Facts

repository: github.com/specleft/specleft
website: https://specleft.dev/
category: maps & location - ranked #37 of 56 actively-maintained maps & location servers as of 2026-08-25.
registry: io.github.SpecLeft/specleft (active, first published 2026-02-22 · 2 versions)
packages: pypi:specleft

06 · Spec Left FAQ

What is Spec Left?

Is Spec Left still maintained?

Yes - as of 2026-08-25, its last commit was 2026-04-15. We re-verify nightly.

How do I install Spec Left?

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

Does Spec Left 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 Spec Left

Alternatives to Spec Left

Maintained maps & location servers if Spec Left isn't the fit.

More maps & location MCP servers · Open Eagle Eye · Dadata MCP · Variflight MCP · Switzerland MCP 🇨🇭 · Apiverket

More Python MCP servers · Lumino MCP Server · Sqlsure · Agendum · Rmbr · Stackhawk · see all