d3p MCP Server

MCP server for the digital3 agent protocol (d3p) — exposes all d3p services as MCP tools that any MCP client can call.

Auto-discovers services from the d3p manifest and registers each as a tool, plus protocol-level tools for discovery, compatibility checking, pipeline execution, reputation, and pricing.

Quick Start

Install

pip install d3p-mcp-server

Or install from source:

git clone https://github.com/digital3/d3p-mcp-server.git
cd d3p-mcp-server
pip install -e .

Claude Desktop

Add to your claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/claude_desktop_config.json, Windows: %APPDATA%\Claude\claude_desktop_config.json):

{
  "mcpServers": {
    "d3p": {
      "command": "d3p-mcp-server",
      "env": {
        "D3P_BASE_URL": "https://labs.digital3.ai",
        "D3P_MOCK_PAYMENTS": "true"
      }
    }
  }
}

Or run directly with Python:

{
  "mcpServers": {
    "d3p": {
      "command": "python3",
      "args": ["-m", "d3p_mcp_server"],
      "env": {
        "D3P_MOCK_PAYMENTS": "true"
      }
    }
  }
}

Claude Code

claude mcp add d3p -- d3p-mcp-server

SSE Mode (Remote)

d3p-mcp-server --sse --port 8888

Available Tools

Service Tools (auto-discovered)

Each d3p service is registered as d3p_{service_id}. All accept a JSON string parameter with the service's input fields.

Examples: d3p_btc-price, d3p_search, d3p_weather, d3p_vibe-check, etc.

Protocol Tools

Tool	Description
d3p_list_services	List all services with pricing and descriptions
d3p_discover	Search services by capability, price, reputation, latency
d3p_check_compatibility	Check if two services can be chained (output→input)
d3p_pipeline_execute	Execute a multi-service pipeline with atomic payments
d3p_pipeline_status	Check status of a running pipeline
d3p_pipeline_result	Get final result of a completed pipeline
d3p_pipeline_validate	Dry-run a pipeline (cost estimate, no execution)
d3p_pipeline_templates	List pre-built pipeline templates
d3p_reputation	Get reputation score for a service
d3p_price_quote	Get dynamic price quote for a service
d3p_protocol_info	Get protocol configuration info

Environment Variables

Variable	Default	Description
D3P_BASE_URL	https://labs.digital3.ai	Base URL for d3p services
D3P_MANIFEST_URL	{BASE_URL}/api/services/manifest	Manifest endpoint
D3P_MOCK_PAYMENTS	true	Set false for live L402 Lightning payments
D3P_TIMEOUT	15	Request timeout in seconds

Examples

List services

Ask Claude: "What d3p services are available?"

Get Bitcoin price

Ask Claude: "Use d3p to get the current Bitcoin price in USD"

Chain services

Ask Claude: "Search for Bitcoin news and then run sentiment analysis on the results using d3p"

Discover by capability

Ask Claude: "Find d3p services that do text analysis for under 50 sats"

Architecture

Claude Desktop / claude-code / Cursor
    │
    │ MCP (stdio or SSE)
    ▼
d3p MCP Server
    │
    │ HTTPS
    ▼
labs.digital3.ai (d3p protocol)
    │
    │ L402 Lightning
    ▼
autonom rails (payment layer)

Development

git clone https://github.com/digital3/d3p-mcp-server.git
cd d3p-mcp-server
pip install -e .
d3p-mcp-server --test

License

MIT