Sigma Gate MCP Server: Install & Setup

Install Sigma Gate in Claude Code

Claude Code

claude mcp add --transport http sigma-gate https://sigma-gate-864996675261.us-central1.run.app/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "sigma-gate": {
      "url": "https://sigma-gate-864996675261.us-central1.run.app/mcp"
    }
  }
}

Frequently asked questions

What does the Sigma Gate MCP server do?

Deterministic trust gate for AI output: leaked-secret, prompt-injection & PII in one call.

Is the Sigma Gate MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Sigma Gate run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Sigma Gate to Claude Code?

Run: claude mcp add --transport http sigma-gate https://sigma-gate-864996675261.us-central1.run.app/mcp

More security & identity MCP servers

View all

SimplyScan

io.simplyscan/simplyscan

Security, SEO and AI-visibility scanner for web apps · free scans and focused checks via MCP.

RemoteFree

Show & Tell

com.playshowandtell/show-and-tell

Daily photo game: you see a secret word, show it in photos, and your AI guesses it.

RemoteAccount needed

Sinthoma

br.com.sinthoma/conector

Read-only Sinthoma clinical connector: patients, sessions and prep; OAuth consent and audit.

RemoteAccount needed

ShopSafe URL verification

au.com.shopsafe/verify

URL risk evidence with scoped OAuth/API keys, capped prepaid costs and up to ten URLs per batch.

RemoteAccount needed

Site

uk.co.vacantpropertysecuritycost/site

Vacant Property Security Cost: the site's own MCP server — enquiry (enquiry = a human handoff,...

RemoteAccount needed

ShipLatch

com.shiplatch/scanner

Free passive security scan for AI-built apps: leaked API keys, public .env files, security headers

RemoteFree