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

Costkits MCP

by costkitsversion 2.0.0i★ –iComputer or cloud
Registry nameio.github.costkits/costkits-mcp

Install

Overview

Description from the maker (original English)

Free hosted MCP server: US healthcare procedure cost estimates and provider pricing. No API key.

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.

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • 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 …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://mcp.costkits.com/mcp

Or run it on your computer

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

{
  "mcpServers": {
    "costkits": {
      "command": "npx",
      "args": [
        "-y",
        "@costkits/costkits-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add --transport http costkits https://mcp.costkits.com/mcp

Or run it on your computer

claude mcp add costkits -- npx -y @costkits/costkits-mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "costkits": {
      "url": "https://mcp.costkits.com/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "costkits": {
      "command": "npx",
      "args": [
        "-y",
        "@costkits/costkits-mcp"
      ]
    }
  }
}

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": {
    "costkits": {
      "type": "http",
      "url": "https://mcp.costkits.com/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "costkits": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@costkits/costkits-mcp"
      ]
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://mcp.costkits.com/mcp

Menu names can differ slightly by plan and over time.

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

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 costkits, 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 checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Clinics & healthi

  • More stars than 0% of the other 870 servers in this category
  • Published to the registry more recently than 59% of the other 870 servers in this category
  • Basic checks equal to or better than 100% of the other 870 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 Costkits MCP 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.0.0) reached the registry 21 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

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.

CostKits MCP Server

Give Claude, ChatGPT, Cursor, and other MCP clients access to live US healthcare cost data.

CostKits provides procedure cost estimates, patient out-of-pocket calculations, provider pricing, and insurance coverage rules using hospital-transparency and CMS data rather than model memory.

Ask healthcare cost questions in natural language. CostKits supplies the structured data and calculations.

A hosted Model Context Protocol server. No API key, no signup. It powers the CostKits app in ChatGPT and works with any MCP client that supports remote servers.

What can an agent do with CostKits?

Ask questions such as:

  • "What would a colonoscopy cost in Connecticut?"
  • "How much would I owe if I have $500 left on my deductible and 20% coinsurance?"
  • "Compare MRI prices from providers near Dallas."
  • "Does this procedure commonly require prior authorization?"
  • "Resolve 'knee scan' to the correct procedure and estimate the cost."

The MCP server selects the appropriate CostKits API tools and returns structured healthcare cost data the model can explain to the user.

User question

↓ MCP client ↓ CostKits MCP tool ↓ CostKits healthcare cost API ↓ Structured estimate, provider pricing, coverage rule, or bill-analysis result

Connect

Remote (recommended): add the server URL in any client that supports remote MCP servers (ChatGPT, Claude, Cursor, and others):

https://mcp.costkits.com/mcp

Claude Desktop via npm: the package is a thin shim that forwards to the hosted server.

{

"mcpServers": { "costkits": { "command": "npx", "args": ["-y", "@costkits/costkits-mcp"] } } }

Available tools

ToolWhat it does
resolve_procedureMatch a plain-language procedure name to a supported procedure
list_proceduresThe procedure catalog with CPT codes
get_procedure_detailsBilling rules, cost drivers, and which separate bills to expect
estimate_procedure_costCost range in a state, with expected out-of-pocket if you give plan details
full_estimateProcedure, cost, providers, and liability in one call
calculate_liabilityDeductible, coinsurance, and out-of-pocket math for a dollar amount
find_providersProviders with observed hospital-transparency prices (up to 10 per call)
get_providerPublic profile for one provider by NPI
get_coveragePrior auth, cost-sharing, and frequency rules by carrier
list_carriersSupported insurance carriers
demo_estimateSample estimate, for checking your connection

For bill review, use the CostKits app. Bill analysis is not available through this server.

Privacy and data handling

These tools do not need patient names, member IDs, dates of birth, or medical-record identifiers, and you should not send them. Requests are logged without free text, only the tool, procedure, and state.

Local development

npm install

npm run start:http # hosted server on :8787, set COSTKITS_API_KEY for a server-side key npm run smoke # stdio shim against a local hosted server npm run smoke:http # hosted server contract

Env varUsed byPurpose
COSTKITS_MCP_URLstdio shimOverride the hosted URL (default https://mcp.costkits.com/mcp)
COSTKITS_API_KEYhosted serverServer-side key for the CostKits backend
COSTKITS_API_BASEhosted serverBackend base URL
RATE_LIMIT_PER_MINhosted serverPer-IP limit (default 60)

Links

costkits.com · Interactive demo

About CostKits

CostKits is a healthcare cost-transparency platform built by John Caruso, FSA, MAAA, a healthcare actuary with more than 20 years of experience in insurance pricing, medical billing systems, and healthcare cost analytics.

This MCP server gives AI assistants and agents access to CostKits cost data.

Methodology

License

MIT

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