Source Parts MCP Server

A Model Context Protocol (MCP) server for sourcing electronic parts with multi-EDA integration. Its 9 documented tools cover part, bom, kicad.

People who work with part, bom and kicad and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-16 · ★ 2 · #49 OF 96 MAINTAINED DESIGN · VERIFIED 2026-09-30

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Source Parts

before you install - you'll need

Set SOURCE_PARTS_API_KEY, SOURCE_PARTS_API_URL, KICAD_SEARCH_PATHS, PARTS_CACHE_DIR, CACHE_EXPIRY_HOURS before connecting.

Claude Code

claude mcp add sourceparts-parts-mcp --transport http https://mcp.source.parts/

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "sourceparts-parts-mcp": {
      "url": "https://mcp.source.parts/"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://mcp.source.parts/

transport: streamable-http

endpoint alive - authentication required · probed 2026-09-30

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to mcp.source.parts

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license Apache-2.0 - declared in the repository

pypi package parts-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.SourceParts is GitHub-verified and matches the repo owner

03 · What Source Parts can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can search for components by query, get detailed part information, get pricing across distributors, and check real-time inventory.

Capability map

Tools grouped from the project's README - what Source Parts lets an agent do.

read & search

5 tools - e.g. Search for components by query; Get detailed part information; Get pricing across distributors

search_parts · get_part_details · get_part_pricing · find_alternatives · find_kicad_projects

Check

1 tool - e.g. Check real-time inventory

check_availability

Process

1 tool - e.g. Process BOM file from any supported EDA

process_bom

Match

1 tool - e.g. Match BOM components to parts

match_components

Generate

1 tool - e.g. Generate BOM from KiCad schematic

generate_kicad_bom

Latest releases

v0.5.3 · 2026-08-16

Changes · local auth: read the CLI's OAuth keychain entries, not just api-key · public tool-surface audit - 127 tools classified, move/keep recommendations · Installation · bash · pip install parts-mcp==0.5.3 · Or…

v0.5.2 · 2026-08-16

Changes · local auth: fall back to the parts CLI keychain; document search_by_parameters · Installation · bash · pip install parts-mcp==0.5.2 · Or install from source: · bash · pip install git+ · Claude.ai (Remote)…

v0.5.1 · 2026-08-15

Changes · declare the integration pytest marker; bump to 0.5.1 · Installation · bash · pip install parts-mcp==0.5.1 · Or install from source: · bash · pip install git+ · Claude.ai (Remote) · Add as a connector in…

04 · Who maintains Source Parts

Source Parts is maintained by sourceparts. It's the only MCP server we track from this author; the repo dates to Oct 2025.

05 · Facts

repository: github.com/sourceparts/parts-mcp
website: https://source.parts/
category: design - ranked #49 of 96 actively-maintained design servers as of 2026-09-30.
release cadence: 3 releases in the last 90 days (latest 2026-08-16)
registry: io.github.SourceParts/parts-mcp (active, first published 2026-04-16 · 8 versions)
packages: pypi:parts-mcp

06 · Source Parts FAQ

Is Source Parts still maintained?

Yes - as of 2026-09-30, its last commit was 2026-08-16 and it shipped 3 releases in the last 90 days. We re-verify nightly.

What can Source Parts do?

With this server connected, an agent can search for components by query, get detailed part information, get pricing across distributors, and check real-time inventory.

How do I install Source Parts?

Run `uvx parts-mcp`. The README documents 5 environment variables (SOURCE_PARTS_API_KEY, SOURCE_PARTS_API_URL, KICAD_SEARCH_PATHS…) to set first. Set SOURCE_PARTS_API_KEY, SOURCE_PARTS_API_URL, KICAD_SEARCH_PATHS, PARTS_CACHE_DIR, CACHE_EXPIRY_HOURS before connecting. You can also paste the ready-made client config above.

Does Source Parts require authentication?

Yes - when we probed the endpoint on 2026-09-30, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

07 · Alternatives to Source Parts

Alternatives to Source Parts

Maintained design servers if Source Parts isn't the fit.

More design MCP servers · Figma MCP Express · Validator · Openroad MCP (the-openroad-project) · Figma UI MCP · Contextatlas

More Python MCP servers · Machine Library · Guardian Shield · Simmer · Spec Left · Spoken · see all