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

MoonClerk MCP by usefulapi

by m190version 1.16.2i★ 1 (Stars for the whole repo)iRuns in the cloud
Registry nameio.usefulapi/moonclerk

Install

Overview

Description from the maker (original English)

Read MoonClerk payment forms, customers (plans with subscriptions) and payments. Read-only.

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

Install

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

Before you install

You need

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://…3Connect4
https://moonclerk.usefulapi.io/mcp

Run this in your terminal

claude mcp add --transport http moonclerk https://moonclerk.usefulapi.io/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "moonclerk": {
      "url": "https://moonclerk.usefulapi.io/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": {
    "moonclerk": {
      "type": "http",
      "url": "https://moonclerk.usefulapi.io/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. Works with ChatGPT Business, Enterprise and Edu on the web; a workspace owner or admin adds it
  2. Go to Plugins, press + and choose Add custom MCP server
  3. Give it a name, paste the address below and set up sign-in as the maker says
  4. Read the warning, tick to accept, then choose Create as a plugin
ChatGPTPlugins1+2https://…3Create4
https://moonclerk.usefulapi.io/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.

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

  • moonclerk_list_forms

    List the MoonClerk payment forms: id, title, currency, payment_volume (cents), successful_checkout_count and created/updated times. Use the form ids to filter customers (plans) and payments. Read-only. GET /forms.

  • moonclerk_get_form

    One payment form by id: title, currency, payment volume and checkout count. Read-only. GET /forms/{id}.

  • moonclerk_list_customers

    List MoonClerk customers, which the MoonClerk web app calls "Plans": each is one payer with their subscription (status, plan amount and interval, next payment date, trial and cancel dates), payment method (brand, last 4), coupon discount, custom form fields and the form they used

  • moonclerk_get_customer

    One MoonClerk customer (plan) by id with the full subscription, payment method, discount, checkout amounts (subtotal, fee, total, upfront amount, trial days) and custom field answers. The payer's management link and checkout token are never returned. Read-only. GET /customers/{id

  • moonclerk_list_payments

    List MoonClerk payments (charges): date, status (successful, refunded, failed), amount, Stripe fee and amount refunded in cents, currency, payer name and email, payment method, form, customer id (recurring payments only), coupon and custom fields. Filter by form, customer, status

  • moonclerk_get_payment

    One MoonClerk payment by id with amounts (cents), Stripe fee, refunds, payer, payment method, Stripe references (charge, customer, invoice), coupon, custom fields and one-time checkout data. The checkout token is never returned. Read-only. GET /payments/{id}.

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 11, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • ✓ Pass

    Still maintained

    Code last changed yesterday

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 16 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 6 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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Posts here are written by users, not the PopNx team.

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User reviews

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Compared with others in Online shops & paymentsi

  • More stars than 0% of the other 2689 servers in this category
  • Published to the registry more recently than 96% of the other 2689 servers in this category
  • Basic checks equal to or better than 100% of the other 2689 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 MoonClerk MCP by usefulapi safe?

It passed 4 of 4 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 yesterday, and the latest version (1.16.2) reached the registry today.

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 Business and above.

What can I use instead?

In the same category: Spree Commerce developer docs for AI agents, Stripe MCP, Sessy — Amazon SES observability

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 developer docs for AI agents

Spree Commerce docs for AI coding agents: build headless B2B and marketplace ecommerce on its APIs.

by spreeWidely used★ 15.8K Stars for the whole repoUpdated 11 days ago

Runs in the cloud

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 stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ stripe.com

Sessy — Amazon SES observability

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.

by marckohlbruggeGrowing★ 945Updated 3 months ago

Runs in the cloud

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.

MoonClerk MCP by usefulapi

Read MoonClerk payment forms, customers (plans with subscriptions) and payments. Read-only.

Live endpoint: https://moonclerk.usefulapi.io/mcp · Homepage: https://usefulapi.io/moonclerk

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://moonclerk.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http moonclerk https://moonclerk.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

"mcpServers": { "moonclerk": { "url": "https://moonclerk.usefulapi.io/mcp" } } }

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your MoonClerk credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/moonclerk/

On first connect you'll paste your MoonClerk API key (in MoonClerk under Settings → API Key, app.moonclerk.com/settings/api-key).

Tools

ToolTypeWhat it does
moonclerk_list_formsreadList payment forms
moonclerk_get_formreadGet payment form
moonclerk_list_customersreadList customers (plans)
moonclerk_get_customerreadGet customer (plan)
moonclerk_list_paymentsreadList payments
moonclerk_get_paymentreadGet payment
moonclerk_usage_statusmetaUsage status (free-tier meter)
moonclerk_request_featuremetaRequest a missing feature
moonclerk_upgrademetaUpgrade to Pro or Pro+
moonclerk_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro (per user)$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with moonclerk_upgrade (it returns a Stripe Checkout link). Cancel any time with moonclerk_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running moonclerk_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT © usefulapi. Not affiliated with or endorsed by MoonClerk.