moneydevkit

name	moneydevkit
description	Accept payments on any website using moneydevkit. Use when building a site that sells something, adding a checkout/paywall, or integrating payments into a Next.js or Replit app. Supports fixed pricing, pay-what-you-want, products, customers, and orders. Bitcoin Lightning under the hood — works globally, no bank account needed.
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moneydevkit

Add payments to any web app in under 5 minutes. Two supported frameworks: Next.js and Replit (Express + Vite).

Workflow

1. Get credentials

Option A — MCP:

There are two MCP servers:

• Unauthenticated (/mcp/) — for creating a new account and minting credentials
• Authenticated (/mcp/account/) — for managing your account after setup (requires OAuth)

To create a new account:

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

After you have credentials, switch to the authenticated MCP for full account control:

claude mcp add moneydevkit --transport http https://mcp.moneydevkit.com/mcp/account/

Option B — CLI:

npx @moneydevkit/create

Option C — Dashboard: Sign up at moneydevkit.com and create an app.

All options produce two values:

• MDK_ACCESS_TOKEN — API key
• MDK_MNEMONIC — wallet seed phrase

Add both to .env (or Replit Secrets, Vercel env vars, etc.). Both are required.

2. Pick a framework and follow its guide

• Next.js → read references/nextjs.md
• Replit (Express + Vite) → read references/replit.md

3. Create products (optional)

For fixed catalog items, create products via the dashboard or MCP:

mcporter call moneydevkit.create-product name="T-Shirt" priceAmount=2500 currency=USD

Then use type: 'PRODUCTS' checkouts with the product ID.

For dynamic amounts (tips, donations, invoices), skip products and use type: 'AMOUNT' directly.

4. Deploy

Deploy to Vercel (Next.js) or Replit. Ensure MDK_ACCESS_TOKEN and MDK_MNEMONIC are set in the production environment.

⚠️ Use printf not echo when piping env vars — trailing newlines cause silent auth failures.

Checkout types

Type	Use case	Required fields
AMOUNT	Dynamic amounts, tips, invoices	amount, currency
PRODUCTS	Sell dashboard products	product (product ID)

Pricing options

• Fixed price — set specific amount (USD cents or whole sats)
• Pay what you want — customer chooses amount (set amountType: 'CUSTOM' on product)

Currency

• USD — amounts in cents (e.g. 500 = $5.00)
• SAT — amounts in whole satoshis

Customers

Collect customer info to track purchases and enable refunds:

await createCheckout({
  // ...checkout fields
  customer: { email: '[e-mail]', name: 'Jane', externalId: 'user-123' },
  requireCustomerData: ['email', 'name'] // show form for missing fields
})

MCP tools

If the moneydevkit MCP server is connected (authenticated), these tools are available:

• create-app / list-apps / update-app / rotate-api-key — manage apps
• create-product / list-products / get-product / update-product / delete-product
• create-customer / list-customers / get-customer / update-customer / delete-customer
• list-checkouts / get-checkout — view checkout sessions
• list-orders / get-order — view completed payments
• search-docs — search moneydevkit documentation

Security

⚠️ MDK_MNEMONIC is a wallet seed phrase — treat it like a private key.

• Never commit it to git or share in chat messages
• Never log it in application output or error handlers
• Use environment variables or a secrets manager (Vercel env vars, Replit Secrets, AWS Secrets Manager, etc.)
• For production: prefer separate apps with limited-scope keys rather than reusing one mnemonic across projects
• The mnemonic controls the Lightning wallet that receives payments — if compromised, funds can be stolen
• Test with signet/testnet credentials first before using mainnet

MDK_ACCESS_TOKEN is an API key scoped to your app. Rotate it via the dashboard or MCP (rotate-api-key) if compromised.

External endpoints used by this skill:

• mcp.moneydevkit.com — MCP server for account management (HTTPS, OAuth)
• docs.moneydevkit.com — documentation

Source code: @moneydevkit on npm · docs.moneydevkit.com

Docs

Full documentation: docs.moneydevkit.com