Churnkey

Name: Churnkey
Author: churnkey

by churnkeyversion 2.4.1i★ –iRuns in the cloud

Registry nameco.churnkey/churnkey

Install

Overview

Description from the maker (original English)

Read and manage Churnkey cancel flows, retention metrics, and payment recovery

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiVery new★ –

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 in the cloud
Transport: Streamable HTTP
Category: Online shops & payments

Install

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

Before you install

Basic checks: 3 of 3 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

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.churnkey.co/mcp

Run this in your terminal

claude mcp add --transport http churnkey https://mcp.churnkey.co/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "churnkey": {
      "url": "https://mcp.churnkey.co/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": {
    "churnkey": {
      "type": "http",
      "url": "https://mcp.churnkey.co/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:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.churnkey.co/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

The server asks you to sign in before it lists its tools.

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain churnkey.co (the registry checks domain ownership)
… 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
✓ Pass
Endpoint responds
Responded in 451 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… 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 Online shops & paymentsi

More stars than 0% of the other 2554 servers in this category
Published to the registry more recently than 82% of the other 2554 servers in this category
Basic checks equal to or better than 100% of the other 2554 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 Churnkey safe?

It passed 3 of 3 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?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.4.1) reached the registry 5 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: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce

Alternatives

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

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

Spree Commerce: open-source B2B and marketplace ecommerce

Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.

by spreeWidely used★ 15.8KUpdated 8 days ago

Runs in the cloud

Install

Stripe MCP

Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.

by stripeGrowing★ 2KUpdated 12 months ago

Runs in the cloud✓ stripe.com

Install

MCP Cn Commerce

8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending

by TonyWang-hubEarly↓ 73/wk★ 96Updated 29 days ago

Runs on your computer

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.

Churnkey SDK

A production-ready cancel flow for React. Open source. Optionally connects to Churnkey for analytics and AI-powered retention.

Packages

Package	Description
`@churnkey/react`	The cancel flow. Drop-in component, headless hook, or core state machine. React 18 and 19.
`@churnkey/node`	Server-side token generation. Only needed if Churnkey is handling billing actions for you, or if you're using the hosted embed.
`@churnkey/mcp`	Model Context Protocol server. Lets Claude, Cursor, and other AI agents query your Churnkey data (sessions, analytics, DSR) using a Data API key.

Quick start

npm install @churnkey/react

import { CancelFlow } from '@churnkey/react'

import '@churnkey/react/styles.css'

myBilling.applyCoupon(offer.couponId)} handlePause={async (offer) => myBilling.pause({ months: offer.result?.months ?? offer.months })} handleCancel={async () => myBilling.cancel()} onClose={() => setOpen(false)} />

Documentation and resources

@churnkey/react — full API reference, customization, headless usage, custom step types
@churnkey/node — createToken and authHash
@churnkey/mcp — MCP server for Claude / Cursor / Claude Desktop
Create a free Churnkey account — get an appId for analytics
churnkey.co — dashboard, hosted embed, AI retention features

Repo layout

sdk/

├── packages/ │ ├── react/ @churnkey/react │ ├── node/ @churnkey/node │ └── mcp/ @churnkey/mcp ├── apps/ │ └── playground/ internal dev playground └── scripts/ release + tooling helpers

Local development

pnpm install

pnpm --filter @churnkey/react build pnpm --filter @churnkey/react test

To work against the playground:

pnpm --filter @churnkey/react dev    # rebuilds on change

pnpm --filter @churnkey/playground dev # runs the playground app

Releasing

A merge to main that raises a package's package.json version publishes it. In the PR:

Bump version in the package's package.json.
Move the Unreleased entries in its CHANGELOG.md under a ## - heading. That section becomes the GitHub release notes.
Move the copies of the version kept in code: server.json and src/server.ts for @churnkey/mcp, src/index.ts for @churnkey/node. The release plan refuses to run while they disagree with package.json.

On merge, the Release workflow checks out the commit that set the version (the merge or squash commit on main; rebase merging is off for this reason), runs the CI gate, publishes that build to npm with provenance, tags it @ and creates the GitHub release. For @churnkey/mcp it then runs the registry publish. A merge that does not change a version publishes nothing. Prereleases and versions below the current latest are left alone; publish those by hand with --tag.

A release that stops partway is finished by running the Release workflow again from main: the plan picks up any package whose npm version, tag or release is missing and skips the parts that already landed. Manual runs from other branches do nothing.

Publishing authenticates with npm trusted publishing, so there is no npm token in this repo. Each package lists this repo's release.yml with the release environment as its trusted publisher in its settings on npmjs.com. That environment only deploys from main.

License

MIT

Churnkey

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Online shops & paymentsi

Common questions

Alternatives

Spree Commerce: open-source B2B and marketplace ecommerce

Stripe MCP

MCP Cn Commerce

README from the maker

Churnkey SDK

Packages

Quick start

Documentation and resources

Repo layout

Local development

Releasing

License