Pirin.ai MCP Server

Connect AI agents to Pirin.ai forms via Model Context Protocol. Works with ChatGPT, Claude, Cursor, Gemini, and any MCP-compatible client.

Available Tools

pirin_ground_level_form$0.20 USDC
Ground Level Application
Apply for the $250/month membership to ship your AI-native MVP from 80% prototype to launch-ready.

Optional param: user_name (pre-fill)

A $0.20 submission fee is required via x402 protocol (USDC on Base network).

pirin_workshop_waitlist$0.20 USDC
Workshop Waitlist
Join the waitlist for executive AI workshops in Austin, TX.

Required: name, email (work), company, title, company_size.

A $0.20 submission fee is required via x402 protocol (USDC on Base network).

pirin_contact_form$0.20 USDC
Contact Form
Send a message to the Pirin.ai team — general, pricing, technical, or partnership inquiries.

Required: name, email, subject, message.

A $0.20 submission fee is required via x402 protocol (USDC on Base network).

Connect to ChatGPT

  1. Go to ChatGPT Settings → Connectors → Create
  2. MCP URL: https://pirin.ai/api/mcp
  3. Authorize and start using Pirin tools in your conversations

Connect Other AI Clients

Pirin.ai MCP works with any MCP-compatible client. No authentication needed — just pay the $0.20 submission fee via x402.

Claude Desktop

Add to your Claude config:

{
  "mcpServers": {
    "pirin-ai": {
      "url": "https://pirin.ai/api/mcp"
    }
  }
}
Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "pirin-ai": {
      "url": "https://pirin.ai/api/mcp"
    }
  }
}
Gemini CLI

Use the MCP client library:

npx @modelcontextprotocol/inspector \
  http://localhost:3000
Any MCP Client

Streamable HTTP transport:

Endpoint: https://pirin.ai/api/mcp
Transport: Streamable HTTP
Auth: None (x402 payment required per call)

Payment via x402

All MCP tools require a $0.20 submission fee paid in USDC on the Base network using the x402 protocol.

How it works:

  1. Call a tool without an X-PAYMENT header
  2. Server responds with error code -32002 and payment requirements
  3. Pay $0.20 USDC on Base via x402 facilitator
  4. Retry with X-PAYMENT header containing payment proof
  5. Server verifies → executes tool → settles → returns result

For AI agents: Use the @x402/core + @x402/fetch client SDKs to handle payment automatically.

Network: Base mainnet (chain ID 8453)  |  Amount: $0.20 USDC (200000 atomic units) per submission

Facilitator: x402.org/facilitator (Coinbase public facilitator)

For Developers

MCP endpoint: https://pirin.ai/api/mcp

Protocol: JSON-RPC 2.0 (MCP spec 2024-11-05)

Transport: Streamable HTTP + SSE

Auth: None — x402 payment ($0.20 USDC) required per submission

Dev bypass: Set MCP_DEV_BYPASS=true for localhost testing

Server version: 3.0.0

Test MCP endpoint