MCP server

Sigma Gate

io.github.spektre-labs/sigma-gate

Checked 26 Oct 2026, 08:29 UTC · Connection failed

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

Failed last check

https://sigma-gate-864996675261.us-central1.run.app/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Failed last check
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.sigma-gate]
url = "https://sigma-gate-864996675261.us-central1.run.app/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"sigma-gate":{"type":"http","url":"https://sigma-gate-864996675261.us-central1.run.app/mcp"}}}

Antigravity

agy mcp add sigma-gate https://sigma-gate-864996675261.us-central1.run.app/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"sigma-gate","server_url":"https://sigma-gate-864996675261.us-central1.run.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"sigma-gate","server_url":"https://sigma-gate-864996675261.us-central1.run.app/mcp"}

DCL Trust Oracle — AI/LLM Output Audit (x402 MCP)
AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base.
IA-QA — 130+ QA & Dev Tools for AI Agents
130+ QA & dev tools for AI agents: prompt injection, RAG testing, VLM eval, guardrails. Free.
ContrastAPI
55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.
HumanMirror Outcome
Verified AI-agent outcomes: secret scanning, JSON cleanup, dedupe, anomaly and schema checks.
Launchfiles
Launchfiles hosted MCP: free page radars (design UX, search repair, deploy trust) + workspace tools.
Trust Tools
Website security ratings, token verification, and tamper-evident ledger heads from Obelisk Gate.
Mainstreet
Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP
Designesy
Design quality gate for AI-generated UI: score any URL on 45 deterministic checks, A–F grade.

[![AptLynx](https://aptlynx.net/badge/io.github.spektre-labs/sigma-gate.svg)](https://aptlynx.net/servers/io.github.spektre-labs/sigma-gate)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents