P-Link-MCP

# 🧾 P-Link.io MCP Server [](LICENSE) [](https://youtu.be/MTsc_nKiofw) [](https://github.com/paracetamol951/P-Link-MCP/stargazers) [](https://youtu.be/sw9ASYZHEzY) **P-Link MCP Server** is a server compliant with the **MCP (Model Context Protocol)**, integrating fetch-402 client from coinbase, and HTTP 402 protocol on server side, allowing ChatGPT, Claude, and other MCP-compatible clients to connect to a **payment system** on Solana. It provides a simple interface to: - Pay 402 links - Create 402 payment links (supporting agent payment on Solana and human payment by card, Solana wallet, or P-Link account) - Send money to any email or phone number - View transaction history - View wallet information (balance, public wallet address) > 🟢 Live Server: [https://mcp.p-link.io](https://mcp.p-link.io) [](https://youtu.be/sw9ASYZHEzY) --- **Connect your Solana wallet to ChatGPT, Claude, or n8n — and manage your purchases simply by talking.** This project exposes the **p-link.io** API as **Model Context Protocol (MCP)** tools, available over **HTTP (Streamable)** and/or **STDIO**. --- ## 🚀 Features - **send_money**: Send an amount of money to a wallet, an email, or a phone number. Can be any email or phone number. If the user has no P-Link account, an account is created for him and the access is emailed or sent by phone. If the user already has a P-Link account, the wallet is reused. **If the account is not claimed within 3 days, the funds are returned to the sender.** - **request_payment_link** : Create a payment link in order to be paid the desired amount, you can also provide a webhook that will be called on payment success, or a notification email address, or customize the payment page using the parameters. The payment link obtained complies to the HTTP 402 specification, which means AI can pay for the ressource protected by this link. Payment can be made using any Solana token, and get converted to USDC during the transaction. Humans can pay by card. Payment hook can be easily connected to automation tools (IFTTT, Framer, etc). - **get_my_wallet_info** : Get information about your wallet (balance, public address, etc) - **get_wallet_history** : Retrieve list of the transactions related to my Solana wallet - **pay_and_get_402_protected_url** : Pay a HTTP 402 protected URL, and returns the protected result --- ## 🔹 Example usage (ChatGPT / Claude MCP) - 💬 “Hi ! What is the balance of my wallet ?” - 💬 “Can you buy the shoes i like at : https://p-link.io/@phh/0.01?PRODUCT=My_Favorite_shoes&id=888” - 💬 “Send 0.2$ to @Paracetamol” - 💬 “Send 0.2$ to s.smith@mail.com” - 💬 “Can you check the status of this transaction ?” - 💬 “Create a payment link of 10 euros” - 💬 “Show me my transaction history” - 💬 “Pay for this P-Link my friend sent me : https://p-link.io/@Paracetamol/0.1” --- ## ⚙Prerequisities You need to have a p-link.io account for some features. If you don't have one, you can register at : https://p-link.io Then in the software, you have to get your APIKEY in API, Send money page : https://p-link.io/ApiDoc/Send --- ## ⚙️ Installation ### Claude #### Minimum installation Edit the file `claude_desktop_config.json` in your Claude Desktop configuration directory: Windows ``` %APPDATA%\Claude\claude_desktop_config.json ``` Mac OS ``` ~/Library/Application Support/Claude/claude_desktop_config.json ``` Provide the following content after replacing your SHOPID and APIKEY. ```json { "mcpServers": { "plink": { "command": "npx", "args": [ "plink-mcp-server", "--apikey=[replaceWithYourAPIKEY]" ] } } } ``` #### Install via npx Create an installation folder and run the following command in your shell: ```bash npx plink-mcp-server --apikey=abcdef123456 ``` #### Install via npm ```bash # 1) Dependencies npm install # 2) Environment variables (see below) # 3) Build npm run build ``` #### Configuration The binary/runner launches `src/stdio.ts` and communicates via MCP stdin/stdout. Npm install configuration file `claude_desktop_config.json` ```json { "mcpServers": { "plink": { "command": "node", "args": [ "{{PATH_TO_SRC}}/build/stdio.js" ], "cwd": "{{PATH_TO_SRC}}", "env": { "APIKEY": "XXXXXXXX" } } } } ``` ### ChatGPT > Requires a workspace account In **Settings → Connectors → Create Connector**, fill in the following: | Variable | Value | |-----------|--------| | `Name` | `P-Link` | | `Description` | `Can process payments, send money, request payment` | | `MCP Server URL` | `https://mcp.p-link.io/mcp` | | `Authentication` | `oAuth` | Once added, the connector will be **available in new conversations**. --- ### Environment variables | Variable | Default | Description | |-----------|----------|-------------| | `APIKEY` | `----` | Required: your API key | Create a `.env` file: ```env APIKEY=XXXXXXXXXXXXXX ``` --- ## ▶️ Launch ### HTTP Mode (Streamable MCP) The HTTP mode requires a Redis server. It is recommended to use the hosted MCP HTTP/WebSocket server available at [https://mcp.p-link.io](https://mcp.p-link.io): - **POST** `https://mcp.p-link.io/mcp` with a JSON-RPC MCP message - **GET** `https://mcp.p-link.io/health` → `{ "status": "ok" }` - **GET** `https://mcp.p-link.io/.well-known/mcp/manifest.json` → MCP manifest --- ## 💻 Compatible Clients - **ChatGPT (OpenAI)** — via external MCP configuration - **Claude (Anthropic)** — via “Tools manifest URL” - **n8n / Flowise / LangChain** — import via public URL - You are welcome to complete ! --- ## Demo video [](https://youtu.be/MTsc_nKiofw) --- ## 🧩 MCP Manifest Endpoint The MCP API exposes a JSON manifest describing all available tools for compatible clients (ChatGPT, Claude, n8n, etc.). ### Public manifest URL https://mcp.p-link.io/.well-known/mcp/manifest.json > 🗂️ This URL is the one to provide to your MCP client when configuring the server. --- ## 📋 License © 2025. GNU GENERAL PUBLIC LICENSE