Policy Gate MCP Server

by workers-3labsio-policy-gate Your server? Claim it

answering

Policy Gate is answering right now. Last checked 12 min ago. It exposes 4 tools. Last commit 16 Aug 2026.

Deterministic allow/require_approval/deny verdicts for agent actions, before they happen.

Uptime history 16 days of history

16 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

73 ms

Response time

average over 24h

Stars

last commit 16 Aug 2026

Nothing serious here today

Today is the operative word: we check Policy Gate 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 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add policy-gate --transport http https://policy-gate.3labsio.workers.dev/mcp

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

{
  "mcpServers": {
    "policy-gate": {
      "url": "https://policy-gate.3labsio.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.policy-gate]
url = "https://policy-gate.3labsio.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "policy-gate": {
      "url": "https://policy-gate.3labsio.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "policy-gate": {
      "url": "https://policy-gate.3labsio.workers.dev/mcp"
    }
  }
}

Available tools 4

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

policy

policy_check

Evaluate a proposed agent action against a policy and return allow / require_approval / deny with the matched rule and rationale. Paid per call via x402 ($0.005 USDC on Base); returns signing instructions when unpaid.

policy_example

Free. Worked allow/require_approval/deny verdicts from the live policy engine, so you can judge the service before paying for it.

policy_rules

Free. The full built-in policy: every tier, rule, condition and rationale. Nothing about how a verdict is reached is hidden.

first

first_42_sponsor

Pay Fieldproof $42. Returns every live rail: Stripe card_uri, EIP-681 usdc_uri, BIP-21 btc_uri, x402 POST /v1/sponsor, Zelle, and GET /v1/invoice. One settlement meets the first-$42 bar.

Endpoints

URL	Transport	State	Latency	Checked
https://policy-gate.3labsio.workers.dev/mcp	streamable-http	answering	77 ms	12 min ago

Alternatives to Policy Gate

same job, measured the same way

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Glyt

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Browserbash

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Plain-English browser tests for AI agents: real Chrome, deterministic verdicts. Free, no API keys.

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Agent Toolbox

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26 deterministic, offline pre-action safety gates for AI agents, each with a signed verdict.

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Policy Gate — questions

Answers built from our own checks of this server.

What can Policy Gate do?

It exposes 4 tools, read directly from the server on our last check. Among them: first_42_sponsor, policy_check, policy_example, policy_rules. 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 Policy Gate working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 73 ms. The bar chart above shows every period we have measured.

How do I connect Policy Gate?

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 Policy Gate need an API key?

No. Policy Gate completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Policy Gate?

It answers our handshake in 73 ms on average, which is faster than 96% 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 Policy Gate open source?

Yes — it is published under the MIT licence, written in JavaScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.