PCB Parts MCP Server

MCP server for searching electronic components across JLCPCB, Mouser, and DigiKey directly from Claude, Cursor, and other AI coding assistants. 1.5M+ parts with parametric filtering and KiCad footprints. No API key required.

Website: pcbparts.dev

Features

• Cross-distributor search: JLCPCB, Mouser, and DigiKey from one MCP server
• Parametric search: Filter by electrical specs (Vgs(th) < 2V, Rds(on) < 10mΩ, etc.)
• Smart query parsing: "10k 0603 1%" auto-parses into structured filters
• Find alternatives: Spec-aware compatibility checking for 120+ component types
• KiCad footprints: Download symbols and footprints via SamacSys
• Pinout data: Component pin information from EasyEDA symbols
• MPN lookup: Find JLCPCB equivalents by manufacturer part number
• Sensor recommendation: Find sensor ICs by what they measure, protocol, or platform (1,500+ sensors, 56 measure types)
• Reference boards: Search ~285 OSHW board schematics, IC neighborhoods, cross-board consensus for design patterns
• Design rules: 41 curated PCB design reference files covering power, protection, interfaces, MCUs, layout, and EMC
• 14 MCP tools across 7 data sources
• No API key required for JLCPCB (Mouser/DigiKey optional)

Quick Start

Claude Code

claude mcp add -s user --transport http pcbparts https://pcbparts.dev/mcp

Optional — auto-approve all pcbparts tools in ~/.claude/settings.json:

{
  "permissions": {
    "allow": ["mcp__pcbparts__*"]
  }
}

Claude Desktop

Add via Settings → Connectors → "Add custom connector", or add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "pcbparts": {
      "type": "http",
      "url": "https://pcbparts.dev/mcp"
    }
  }
}

Cursor

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "pcbparts": {
      "type": "http",
      "url": "https://pcbparts.dev/mcp"
    }
  }
}

VS Code

Add to .vscode/mcp.json:

{
  "servers": {
    "pcbparts": {
      "type": "http",
      "url": "https://pcbparts.dev/mcp"
    }
  }
}

Copilot for Xcode

Add to Extensions config:

{
  "mcpServers": {
    "pcbparts": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://pcbparts.dev/mcp"]
    }
  }
}

Available Tools

JLCPCB (Local DB + Live API)

Tool	Description
jlc_search	Primary search — smart query parsing + parametric spec filters (local DB, 575K+ in-stock parts)
jlc_stock_check	Real-time stock verification via live JLCPCB API (use jlc_search first)
jlc_get_part	Full details for a specific LCSC part code or MPN lookup
jlc_get_pinout	Component pin information from EasyEDA symbols
jlc_find_alternatives	Find spec-compatible alternative parts with verification
jlc_search_help	Browse categories, subcategories, and filterable attributes

Mouser (requires MOUSER_API_KEY)

Tool	Description
mouser_get_part	Cross-reference a specific MPN on Mouser (daily quota applies)

DigiKey (requires DIGIKEY_CLIENT_ID + DIGIKEY_CLIENT_SECRET)

Tool	Description
digikey_get_part	Cross-reference a specific MPN on DigiKey (daily quota applies)

Sensor Recommendation (no key required)

Tool	Description
sensor_recommend	Find sensor ICs/modules by measurement need, protocol, or platform (1,500+ sensors, 56 measure types)

Reference Boards (no key required)

Tool	Description
board_search	Search ~285 OSHW reference board schematics by IC, tag, org, or free text. Cross-board consensus shows how ICs are typically used.
board_get	Get full board details — BOM, design rules, dimensions. Use focus param for pin-grouped IC neighborhoods (decoupling,

... View full README on GitHub