Koppar

Hosted MCP server for PCB design: your agent researches parts and writes the circuit as a SKiDL script, and Koppar looks up KiCad symbols and footprints, checks the schematic, places and routes the board, runs KiCad DRC, prices the BOM and releases Gerbers only at zero DRC errors (65 tools).

🧰 UtilitiesReader submissionUpdated ?By KopparAuth: Koppar API key (Bearer sc_…, from a free Koppar account)Docs ↗

Found viaWebReader submission MakerKoppar docs: MCP server Makerkoppar.ai

Test results

No full client pass yet

Claude CodeNot tested yet—

CursorNot tested yet—

Claude DesktopNot tested yet—

ChatGPT (Codex)Not tested yet—

In the free test queue: #4, est. Thu, Nov 5. Skip the line with a $29 or $99 priority test.

Protocol: not tested

Install

claude mcp add --transport http koppar https://app.koppar.ai/mcp \
  --header "Authorization: Bearer sc_…"

Mint the key in the Koppar studio (app.koppar.ai) under Settings → Design from your own AI agent. It is shown once.

{
  "mcpServers": {
    "koppar": {
      "type": "http",
      "url": "https://app.koppar.ai/mcp",
      "headers": { "Authorization": "Bearer sc_…" }
    }
  }
}

Streamable HTTP without sessions, so every request carries the key. Listing tools works without a key; calling them needs it.

{ "mcpServers": { "koppar": { "command": "koppar", "args": ["mcp"] } } }

Runs Koppar's CLI as a local server; koppar mcp-config prints this block with your server URL.

From the maker’s docs (checked Oct 19, 2026). Our harness hasn’t run this server yet, so these steps are not verified by us.

Not connecting? Troubleshooting: Claude Code · Cursor · Claude Desktop · ChatGPT (Codex)

Test history

No test runs yet.