Model Context Protocol · streamable HTTP

An MCP server
for PCB design.

Point your agent at a single URL and it gets file IO, a tscircuit evaluator, a JLCPCB component search, and a trace router — scoped to a per-user data directory and gated by a token.

Get your MCP URL tscircuit docs

~/.config/claude/mcp.json

{
  "mcpServers": {
    "pcb22": {
      "url": "https://pcb22.com/mcp?token=<your-token>"
    }
  }
}

Sign in to mint a token. Works with any MCP-aware client (Claude Code, Claude Desktop, Cursor, etc.).

Tools

What your agent gets.

Every tool is sandboxed to you and your projects are secured.

Project & files

Per-user workspace with the file ops your agent already speaks.

create_project scaffold a tscircuit project
list_projects enumerate slugs + descriptions
set_description persist project notes to the DB
Read / Edit / Write Claude-Code-shaped file IO
Glob / Grep find files and content

tscircuit eval

Real evaluator behind every check — no hand-waved compile.

get_errors compile and surface errors/warnings
generate_traces auto-route nets on the board
get_circuit_json raw circuit-json output
render_svg schematic and PCB SVGs
get_display_url live preview URL

Component intel

Pick parts that actually exist, with footprints attached.

component_search search the JLCPCB catalogue
import_component splice a chosen part into index.tsx
view_link read-only share URL

Setup

Three steps.

01
Sign in

Create an account. The dashboard mints a per-user token bound to it.
02
Add the server

Drop the URL https://pcb22.com/mcp?token=… into your MCP client config — Claude Code, Claude Desktop, Cursor, anything that speaks streamable-HTTP MCP.
03
Talk to your agent

Ask it to build a board. It calls the tools, you watch the live preview, and view-only share links are read-only by design.

Built on

Model Context Protocol, tscircuit, and the JLCPCB search index. Open standards, real parts, no proprietary CAD format.