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Prompt Compass

Official registry Security

Decision-only prompt routing and firewall checks for local/cloud routing, PII and jailbreak risk.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http prompt-compass 'https://api.mpcfintech.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "prompt-compass": {
            "type": "http",
            "url": "https://api.mpcfintech.com/mcp"
        }
    }
}
NPM package @mpcfintech/prompt-compass-mcp
Claude Code 
claude mcp add prompt-compass -e 'PROMPT_COMPASS_API_KEY=<your prompt_compass_api_key>' -- npx -y @mpcfintech/prompt-compass-mcp@1.0.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "prompt-compass": {
            "command": "npx",
            "args": [
                "-y",
                "@mpcfintech/prompt-compass-mcp@1.0.1"
            ],
            "env": {
                "PROMPT_COMPASS_API_KEY": "<your prompt_compass_api_key>"
            }
        }
    }
}

Environment variables

  • PROMPT_COMPASS_API_KEY required secret Prompt Compass API key from compass.mpcfintech.com.

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Prompt Compass MCP
  2. Install
  3. Exposed tool
  4. Plans and keys
  5. Security and limitations
  6. Test
  7. Links

Prompt Compass MCP

Prompt Compass gives MCP-compatible AI clients one decision-only tool for checking prompts before they are forwarded:

  • LOCAL_SAFE - suitable for the user's configured local-model route.
  • CLOUD_COMPLEX - suitable for the user's configured cloud-model route.
  • BLOCK_PII - contains likely personal or sensitive data.
  • JAILBREAK - contains likely prompt-injection or jailbreak content.

The MCP server does not call an AI model, choose a model provider, or execute actions. The host application remains in control.

Install

Requires Node.js 20 or newer and a Prompt Compass API key.

npx -y @mpcfintech/prompt-compass-mcp

Set the key as PROMPT_COMPASS_API_KEY. Keep it out of source control, screenshots, issue reports, and chat messages.

Clients supporting Streamable HTTP can instead connect to:

https://api.mpcfintech.com/mcp

Modern clients can discover Prompt Compass OAuth automatically from that URL. Choose Connect or Sign in, log in with your Prompt Compass account, and approve the single read-only prompt-check permission. No API key needs to be pasted into the client. Clients without OAuth support can still use Authorization: Bearer YOUR_PROMPT_COMPASS_API_KEY.

Detailed setup for Codex, ChatGPT desktop, Claude Code/Desktop, Cursor, Cline, Windsurf, Gemini CLI and Google Antigravity is in CLIENT_SETUP.md.

Exposed tool

compass_check_prompt

Input:

{ "prompt": "Text to check" }

The result is a routing/firewall decision only. The tool is marked read-only, non-destructive and idempotent.

Plans and keys

Create a Prompt Compass account and API key at:

https://compass.mpcfintech.com

The MCP connection uses the same quota and billing pool as the Prompt Compass REST API. There is no separate MCP surcharge.

Security and limitations

Prompt Compass is a decision aid, not a sandbox or security guarantee. Keep the host client's own permissions, confirmation prompts, provider policies and application-level validation enabled. Do not auto-approve third-party tools.

Agent Compass is not included in this release.

Test

npm install
npm test

The public test uses a local in-memory MCP transport and a simulated API response. It does not require a customer key.

Copyright (c) Madanpotra Consultancy Private Limited.

Frequently asked questions

What is Prompt Compass?

Decision-only prompt routing and firewall checks for local/cloud routing, PII and jailbreak risk.

How do I install Prompt Compass?

It runs as a remote server. In Claude Code: claude mcp add --transport http prompt-compass 'https://api.mpcfintech.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Prompt Compass need an API key?

Yes. It expects PROMPT_COMPASS_API_KEY, which you set in its configuration.

Is Prompt Compass open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Prompt Compass?

It is published by rishabhmpc. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.