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PopNx MCPMCP servers for people who use AI · explained in plain words

PathCourse Health (PCH)

by pathcourse-healthversion 1.0.1i★ –iRuns on your computer
Registry nameio.github.pathcourse-health/mcp-server

Install

Overview

Description from the maker (original English)

Cheaper LLM inference, USDC agent payments via x402, agent identity / reputation lookup.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Clinics & health
  • You need to fill in: PCH_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: PCH_API_KEY, PCH_GATEWAY_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "pathcourse-health": {
      "command": "npx",
      "args": [
        "-y",
        "@pathcourse/mcp-server"
      ],
      "env": {
        "PCH_API_KEY": "your-value",
        "PCH_GATEWAY_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add pathcourse-health --env PCH_API_KEY=your-value --env PCH_GATEWAY_URL=your-value -- npx -y @pathcourse/mcp-server

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "pathcourse-health": {
      "command": "npx",
      "args": [
        "-y",
        "@pathcourse/mcp-server"
      ],
      "env": {
        "PCH_API_KEY": "your-value",
        "PCH_GATEWAY_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "pathcourse-health": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@pathcourse/mcp-server"
      ],
      "env": {
        "PCH_API_KEY": "your-value",
        "PCH_GATEWAY_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • PCH_API_KEY secret env
    Your PCH API key (format: pch_prod_b_...). Optional — many tools work without it. Mint one via the pch_provision tool by sending 5 USDC on Base.
  • PCH_GATEWAY_URL env
    Override the PCH gateway URL. Defaults to https://gateway.pathcoursehealth.com (production mainnet).

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account pathcourse-health, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Clinics & healthi

  • More stars than 0% of the other 871 servers in this category
  • Published to the registry more recently than 11% of the other 871 servers in this category
  • Basic checks equal to or better than 100% of the other 871 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is PathCourse Health (PCH) safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: PCH_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js, Python (uv) on your computer.

What can I use instead?

In the same category: Mirobody, FHIR MCP Server, Google Health MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Mirobody

by thetahealth

Lab results to LOINC codes and UCUM units, symptoms and diagnoses to ICPC-3. Offline, no API key.

Runs on your computer★ 1,408Apache-2.0Updated 6 days ago
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MCP server providing seamless access to FHIR APIs for AI tools and healthcare applications

Runs on your computer★ 137Apache-2.0Updated 9 days ago
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Google Health MCP

by davidmosiah

Privacy-first unofficial Google Health API v4 MCP server for health, sleep, activity, HR agents

Runs on your computer★ 79MITUpdated 4 months ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

PCH MCP Server

Drop-in MCP server for PathCourse Health (PCH) — cheaper LLM inference, USDC-based agent payments, and agent identity / reputation lookup. Works in Claude Desktop, Cursor, Cline, Continue.dev, and Zed.

14 tools. 7 free (no API key needed) and 7 authenticated. Includes a unique flow that lets you buy a PCH API key from inside Claude Desktop using USDC — no signup form, no email verification.

Install

Claude Desktop, Cursor, Cline, Continue.dev, Zed (npm)

Add to your client's MCP config:

{

"mcpServers": { "pch": { "command": "npx", "args": ["-y", "@pathcourse/mcp-server"], "env": { "PCH_API_KEY": "pch_prod_b_..." } } } }

If you don't have a PCH API key yet, omit the env block. Many tools work without authentication; you can obtain a key via the pch_provision tool.

Per-client install instructions:

  • Claude Desktop
  • Cursor
  • Cline (VS Code)
  • Continue.dev
  • Zed
Python clients (PyPI)
uvx pch-mcp-server

or

pip install pch-mcp-server

Tools

Free (no API key)
ToolWhat it does
pch_modelsList all PCH models with rates and tier requirements
pch_estimateEstimate cost of an inference request before running it
pch_statusGateway health and service status
pch_provisionGet USDC payment instructions to obtain an API key
pch_paySubmit USDC payment proof; returns API key + first inference
pch_lookup_agent_identityLookup an agent's ERC-8004 identity record
pch_get_path_scoreLook up an agent's Path Score (0-1000)
pch_get_agent_history12-month trend of an agent's score components
pch_verify_certificationVerify a PCH-issued certification
pch_compare_costsCompare PCH model cost vs GPT-4o, Claude Sonnet, Claude Haiku
Authenticated (PCH_API_KEY required)
ToolWhat it does
pch_inferenceRun LLM inference on a PCH model
pch_balanceCheck remaining USDC balance and current tier
pch_check_agent_reputationDeeper reputation lookup ($0.001 USDC per query)
pch_my_accountSelf-service balance + identity + recent activity

Configuration

Env varDefaultNotes
PCH_API_KEY(none)Required for authenticated tools. Format: pch_prod_b_...
PCH_GATEWAY_URLhttps://gateway.pathcoursehealth.comOverride for staging or local dev

Security

Never commit `PCH_API_KEY` to a public repo. The wrapper logs a warning at startup if it detects a key that looks like a real production key being passed through env. If you accidentally exposed your key, rotate it via PCH support.

License

MIT

Source

This wrapper is open source: pathcourse-health/pch-mcp-server

The upstream PCH MCP server lives in the (private) pch-platform-gateway repo.

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