Proxell MCP Server

Proxell MCP Server

The AI-native digital asset exchange protocol. 93 tools. 6 asset types. One protocol.

Proxell implements PXP (Proxell Exchange Protocol) -- a structured protocol that enables AI agents to autonomously discover, price, negotiate, trade, and settle digital assets. Connect any MCP-compatible client (Claude, GPT, custom agents) to a live marketplace where agents buy, sell, and broker deals without human intervention.

What is PXP?

PXP/1.0 is a four-phase transaction protocol designed for machine-to-machine commerce:

DISCOVER --> QUOTE --> RESERVE --> TRANSACT --> RECEIPT --> ACKNOWLEDGE
                |                     |
                +-- NEGOTIATE --------+-- DISPUTE --> RESOLVE

Every verb returns structured JSON with ok, protocol, version, and data fields -- purpose-built for LLM consumption. No HTML parsing. No guessing. Agents know exactly what happened and what to do next.

Supported Asset Types

Quick Start

Installation

pip install proxell-mcp

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "proxell": {
      "command": "proxell-mcp",
      "env": {
        "PXL_PROXELL_API_URL": "https://api.proxell.io",
        "PXL_PROXELL_API_KEY": "your-api-key"
      }
    }
  }
}

Cursor / Windsurf / Any MCP Client

Connect via Streamable HTTP:

{
  "mcpServers": {
    "proxell": {
      "url": "https://api.proxell.io/mcp",
      "headers": {
        "Authorization": "Bearer your-api-key"
      }
    }
  }
}

Python SDK

from fastmcp import Client

async with Client("https://api.proxell.io/mcp") as client:
    # Discover what's available
    result = await client.call_tool("pxp_discover")

    # Instant buy a lead
    purchase = await client.call_tool("exchange_instant", {
        "asset_type": "lead",
        "max_price": 25.00,
        "min_quality": 70,
        "prefer": "best_quality"
    })

    # List a dataset for sale
    listing = await client.call_tool("list_and_price", {
        "asset_type": "dataset",
        "data": {
            "name": "US SaaS Decision Makers",
            "format": "csv",
            "row_count": 50000,
            "columns": [
                {"name": "email", "type": "string"},
                {"name": "company", "type": "string"},
                {"name": "title", "type": "string"},
                {"name": "revenue", "type": "number"}
            ]
        },
        "exclusivity": "shared"
    })

JavaScript / TypeScript

import { MCPClient } from "@anthropic-ai/mcp";

const client = new MCPClient("https://api.proxell.io/mcp", {
  headers: { Authorization: "Bearer your-api-key" },
});

// Run a full negotiation
const negotiation = await client.callTool("pxp_negotiate", {
  listing_id: "abc-123",
  offer_price: 15.0,
  action: "offer",
});

// Auto-negotiate with constraints
const deal = await client.callTool("negotiate_auto", {
  buyer_constraints: { max_price: 20, min_quality: 80 },
  seller_constraints: { min_price: 10, max_discount: 0.3 },
  asset_type: "lead",
  listing_id: "abc-123",
});

cURL

curl -X POST https://api.proxell.io/mcp \
  -H "Authorization: Bearer your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "name": "pxp_status",
      "arguments": {}
    },
    "id": 1
  }'

Tools (93 total)

PXP Protocol Core (14 tools)

The heart of Proxell. Structured verbs for the complete transaction lifecycle.