Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"lemon": {
"args": [
"-y",
"agent-payment-mcp"
],
"command": "npx"
}
}
}Are you the author?
Add this badge to your README to show your security score and help users find safe servers.
The billing, budget & identity layer for software for agents. Private Beta · Open core
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'create-lemon-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories — click any category to see the underlying evidence.
No known CVEs.
Checked create-lemon-mcp against OSV.dev.
Be the first to review
Have you used this server?
Share your experience — it helps other developers decide.
Sign in to write a review.
Others in finance
Let AI agents create, discover, and track tokens across chains via Printr.
MCP server for QuickBooks Online — accounts, customers, invoices, bills, and reports.
Real-time financial market data: stocks, forex, crypto, commodities, and economic indicators
MaverickMCP - Personal Stock Analysis MCP Server
MCP Security Weekly
Get CVE alerts and security updates for io.github.evidai/agent-payment and similar servers.
Start a conversation
Ask a question, share a tip, or report an issue.
Sign in to join the discussion.
The billing, budget & identity layer for software for agents. Private Beta · Open core
Monetize any MCP/API in minutes, and let AI agents pay for it safely — each agent gets a spend-capped identity (budget, usage, pause/revoke). Buyers pay by card; no crypto wallet. First 3,000 calls free (lifetime). Then 3% only when your API earns.
🚀 Get started · 💲 Pricing · 📚 Docs · 🌐 Live
☝️ A real AI agent buys API calls by itself ($0.01 each), stops at its cap, and the API owner earns — no human, no crypto. · demo source
Monetizing an MCP/API? Start here — one command:
npx create-lemon-mcp my-paid-mcp # a paid MCP server, running in sandbox now
# then add a Seller Key in /app and set LEMONCAKE_SELLER_KEY → it charges for real (no code change)
Pick your path:
| I want to… | Do this |
|---|---|
| Monetize my MCP/API (sellers) | npx create-lemon-mcp → add a Seller Key in /app to go live |
| Add billing to a server I already have | @lemon-cake/mcp-sdk — wrap a tool with lc.charge(), or route through the gateway (no code) |
| Let an agent pay for paid APIs (buyers) | npx -y agent-payment-mcp — 8 free demo tools, no signup |
npx -y agent-payment-mcp
{ "mcpServers": { "lemon": { "command": "npx", "args": ["-y", "agent-payment-mcp"] } } }
Ask your agent to run list_demos / call_demo. To call paid APIs, set LC_PAY_TOKEN (get one at lemoncake.xyz/app).
LemonCake is an x402 payment rail for monetizing MCP servers and HTTP APIs. Sellers register an endpoint and set a price per call. Buyers prepay by card and receive a spend-capped Pay Token. Agents call the gateway with that token, and LemonCake verifies, meters, forwards, and records usage.
sequenceDiagram
participant A as 🤖 AI Agent
participant G as 🍋 LemonCake Gateway
participant API as Your API
A->>G: POST /g/:id (no token)
G-->>A: 402 + accepts[] (price, mintUrl)
A->>G: mint Pay Token (off-session, capped)
A->>G: Bearer :jwt
G->>API: forward (upstream key hidden)
API-->>A: 200 + result
Note over A,G: budget exhausted → 402 → agent self-funds → continues
Sellers register any HTTP API and set a price per call. Buyers / agents prepay with a card → Pay Token issued automatically → agent calls the API within budget. Budget exhausted → 402 challenge → agent self-funds → continues. No humans.
| Layer | Status | Where |
|---|---|---|
Buyer-side MCP (agent-payment-mcp) | ✅ MIT | [npm](https://www.npmjs.com/pa |