AI Guardrails MCP Server

by lazymac2x Your server? Claim it

answering

AI Guardrails is answering right now. Last checked 7 min ago. It exposes 5 tools. Last commit 11 Apr 2026.

Cloudflare Workers MCP server: ai-guardrails

Uptime history 48 days of history

48 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

158 ms

Response time

average over 24h

Stars

last commit 11 Apr 2026

Nothing serious here today

Today is the operative word: we check AI Guardrails every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ai-guardrails --transport http https://api.lazy-mac.com/ai-guardrails/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ai-guardrails": {
      "url": "https://api.lazy-mac.com/ai-guardrails/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ai-guardrails]
url = "https://api.lazy-mac.com/ai-guardrails/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "ai-guardrails": {
      "url": "https://api.lazy-mac.com/ai-guardrails/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ai-guardrails": {
      "url": "https://api.lazy-mac.com/ai-guardrails/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

detect

detect_pii

Detect personally identifiable information (email, phone, SSN, credit card, IP, URL, API key) in a text string.

full

full_check

Run pii, safety, and/or hallucination checks in one call. Default: pii + safety. Specify checks=["pii","safety","hallucination"] to run all.

hallucination

check_hallucination

Heuristic scoring of LLM hedge phrases that correlate with hallucinated outputs. Returns score 0–1 and risk level.

redact

redact_pii

Redact PII from text. mode=mask replaces with [REDACTED]; mode=tag uses typed placeholders like [EMAIL].

safety

check_safety

Check text for harmful content using weighted keyword detection. Returns a 0–1 score and verdict (safe/caution/unsafe).

Endpoints

URL	Transport	State	Latency	Checked
https://api.lazy-mac.com/ai-guardrails/mcp	streamable-http	answering	154 ms	7 min ago

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AI Guardrails — questions

Answers built from our own checks of this server.

What can AI Guardrails do?

It exposes 5 tools, read directly from the server on our last check. Among them: check_hallucination, check_safety, detect_pii, full_check, redact_pii. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is AI Guardrails working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 158 ms. The bar chart above shows every period we have measured.

How do I connect AI Guardrails?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does AI Guardrails need an API key?

No. AI Guardrails completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is AI Guardrails?

It answers our handshake in 158 ms on average, which is faster than 75% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is AI Guardrails open source?

We cannot say either way: written in JavaScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.