Guardrail MCP server

Guardrail is a remote MCP server that gives an AI agent 2 tools, among them assess_action_risk, get_guardrail_capabilities. It answers at https://guardrail-mcp.kadopi.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 22 October 2026, succeeded.

Deterministic preflight checks for credentials, fund transfers, writes, and prompt overrides.

Description as the publisher wrote it.

The 2 tools Guardrail offers

Add Guardrail to your AI client

Every block below points at https://guardrail-mcp.kadopi.workers.dev/mcp. Pick your client and copy.

claude mcp add --transport http guardrail https://guardrail-mcp.kadopi.workers.dev/mcp

{
  "mcpServers": {
    "guardrail": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://guardrail-mcp.kadopi.workers.dev/mcp"]
    }
  }
}

{
  "mcpServers": {
    "guardrail": {
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "servers": {
    "guardrail": {
      "type": "http",
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "context_servers": {
    "guardrail": {
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "guardrail": {
      "serverUrl": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "guardrail": {
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

name: Guardrail
version: 0.0.1
schema: v1
mcpServers:
  - name: Guardrail
    type: streamable-http
    url: https://guardrail-mcp.kadopi.workers.dev/mcp

{
  "mcpServers": {
    "guardrail": {
      "httpUrl": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "guardrail": {
      "type": "http",
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "guardrail": {
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fguardrail-mcp.kadopi.workers.dev%2Fmcp&type=streamable_http&id=guardrail&name=Guardrail

Is Guardrail up right now?

It answered our last check on 22 October 2026 in 125 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Guardrail

Questions about Guardrail

How many tools does Guardrail have?

2, as returned by the server's own tools/list on 14 September 2026: assess_action_risk, get_guardrail_capabilities.

Is Guardrail down?

It answered our last check on 22 October 2026 in 125 ms. Over 6 checks since 11 September 2026 it answered 6.

How do I add Guardrail to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://guardrail-mcp.kadopi.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Guardrail need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: io.github.kadopi. Endpoint host: guardrail-mcp.kadopi.workers.dev. ARD identifier: urn:air:io.github.kadopi:mcp:guardrail-mcp. First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.