🧾 P-Link.io MCP Server

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

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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.

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🚀 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. The assistant will use your wallet in order to pay for the requested ressource.
• get_wallet_and_api_key : Create wallet for this email and get API_KEY
• login_with_api_key : Login using API_KEY
• fund_my_wallet : Get the different ways in order to fund your wallet : Sending Solana cryptocurrency to the specified Solana public wallet address, or use a the provided link in order to fund your account using a credit card (provided by Stripe).

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🔹 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”

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⚙Prerequisities

There are no prerequisities, using the MCP server, you can call the tool get_wallet_and_api_key in order to create a wallet associated with your email address, and login with it. Then if you want to send funds, you can use the tool fund_my_wallet that will give you the instructions to fund your wallet using a Solana wallet or a credit card.

If you already have a P-Link account, you can specify the API_KEY parameter, if you want to create your account with your assistant, just leave this parameter. In the software, you can get your APIKEY in API, Send money page : https://p-link.io/ApiDoc/Send

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⚙️ 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.

  {
  "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:

npx plink-mcp-server --apikey=abcdef123456

Install via npm

# 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

{
  "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.

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Environment variables

Variable	Default	Description
APIKEY	----	Required: your API key

Create a .env file:

APIKEY=XXXXXXXXXXXXXX

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▶️ 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:

• 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

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💻 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 !

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Demo video

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🧩 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.

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📋 License

© 2025. GNU GENERAL PUBLIC LICENSE