Opengate MCP

Deterministic, gold-anchored verification for evidence-grounded AI - no LLM judge. It runs locally over stdio via the published package.

People who work with ai safety, benchmarking and evals and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-29 · ★ 2 · #61 OF 117 MAINTAINED AI & ML · VERIFIED 2026-09-30

MIT · JavaScript servers · how we verify → /methodology

01 · Install Opengate MCP

before you install - you'll need

OPENGATE_ADAPTER

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add nickjlamb-opengate -- npx -y @pharmatools/opengate-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "nickjlamb-opengate": {
      "command": "npx",
      "args": [
        "-y",
        "@pharmatools/opengate-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

npm package @pharmatools/opengate-mcp - the @pharmatools scope differs from the repo owner (nickjlamb); confirm it's the project's official package

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

03 · What Opengate MCP can do

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

Latest releases

v0.10.0 · 2026-09-02

The structured-extraction release: documents → fields → schema validation → · human review, scored deterministically against hand-labelled gold. · Added · Extraction scorer + capability - adapters can expose…

opengate-mcp-0.1.4 · 2026-07-06

opengate-mcp-0.1.3 · 2026-07-06

04 · Who maintains Opengate MCP

opengate-mcp is maintained by nickjlamb. We track 5 MCP servers from nickjlamb - 5 actively maintained, 29 combined GitHub stars, oldest repo from Feb 2026. Full record: all servers from nickjlamb.

  1. pubcrawl PubMed & Europe PMC literature search, US/UK drug labelling, and clinical trials for AI assistants. ★ 15
  2. redacta-mcp Pseudonymise and restore patient identifiers & PII in text - local, HIPAA Safe Harbor mode. ★ 9
  3. studydiff Explain why two scientific papers disagree, every claim grounded in a verbatim source quote. ★ 2

05 · Facts

category
AI & ML - ranked #61 of 117 actively-maintained AI & ML servers as of 2026-09-30.
release cadence
10+ releases in the last 90 days (latest 2026-09-02)
registry
io.github.nickjlamb/opengate-mcp (active, first published 2026-07-06 · 2 versions)
packages
npm:@pharmatools/opengate-mcp

06 · Opengate MCP FAQ

What is Opengate MCP?

Deterministic, gold-anchored verification for evidence-grounded AI - no LLM judge. It runs locally over stdio via the published package.

Is Opengate MCP still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-29 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Opengate MCP?

Run `npx -y @pharmatools/opengate-mcp`. The README documents one environment variable (OPENGATE_ADAPTER) to set first. You can also paste the ready-made client config above.

Does Opengate MCP run locally?

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

07 · Alternatives to Opengate MCP