Koskamo

PCBBrew MCP

A free, read-only MCP server that allows AI assistants to search for microcontroller boards, sensors, modules, and KiCad components. It provides details on pins, interfaces, libraries, and simulation capabilities, as well as listing user-published boards from the PCBBrew showcase.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

PCBBrew MCP logo, by PCBBrewVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-08Operated by PCBBrew
MCP endpoint (Streamable HTTP)
https://pcbbrew.dev/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 1 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to pcbbrew.dev ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search for microcontroller boards and modules by name or interface
  • Get detailed pinouts, libraries, and simulation info for specific parts
  • Search KiCad symbol libraries designed by PCBBrew
  • List boards published by PCBBrew users

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: dev.pcbbrew/pcbbrew@1.0.0Project website

Protocol and capabilities

Server
pcbbrew 1.0.0
MCP protocol negotiated in check
2025-06-18
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

PCBBrew designs real printed circuit boards from a plain-language description: schematic, PCB routed and checked, 3D view, bill of materials, Arduino firmware and a browser simulator of the microcontroller. These tools read PCBBrew's public catalogue of simulated boards and modules, the KiCad component libraries it designs with, and the public project gallery.

Tools

4 advertised

search_parts — Search boards and modules
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search PCBBrew's catalogue of microcontroller boards (ESP32, Arduino, Raspberry Pi Pico, display boards) and plug-in modules (sensors, displays, motor drivers, radio, storage) by name, chip, use or interface. Every entry can be placed on a PCB designed by PCBBrew; most are simulated.

search_parts input schema
{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "kind": {
      "enum": [
        "any",
        "board",
        "module"
      ],
      "type": "string",
      "default": "any"
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "e.g. 'CO2 sensor', 'e-paper', 'ESP32-S3'"
    }
  }
}
search_parts annotations
{
  "title": "Search boards and modules",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_part — Get a board or module
Advertised by the server during the last successful anonymous check.
Advertised read-only

One board or module from the catalogue by id: description, pins with their role, interfaces, I2C addresses, Arduino libraries, whether PCBBrew simulates it, where to buy it and a picture.

get_part input schema
{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "id from search_parts"
    }
  }
}
get_part annotations
{
  "title": "Get a board or module",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
search_kicad_parts — Search KiCad components
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search the KiCad symbol libraries PCBBrew designs with (resistors, regulators, op-amps, timers, MOSFETs, connectors...): symbol id, description and datasheet link.

search_kicad_parts input schema
{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "e.g. 'AMS1117', 'NE555', 'USB-C receptacle'"
    }
  }
}
search_kicad_parts annotations
{
  "title": "Search KiCad components",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_showcase — List published boards
Advertised by the server during the last successful anonymous check.
Advertised read-only

Boards that PCBBrew users designed and chose to publish: title, cover image, author and likes.

list_showcase input schema
{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    }
  }
}
list_showcase annotations
{
  "title": "List published boards",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (4 of 4 answered).

  1. 2026-11-09: 2 of 2 checks answered
  2. 2026-11-10: 2 of 2 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
917 ms
95th percentile latency
917 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 917 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http pcbbrew-mcp https://pcbbrew.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add pcbbrew-mcp --url https://pcbbrew.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable pcbbrew-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "pcbbrew-mcp": {
      "url": "https://pcbbrew.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "pcbbrew-mcp": {
      "type": "streamableHttp",
      "url": "https://pcbbrew.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start pcbbrew-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "pcbbrew-mcp": {
      "type": "http",
      "url": "https://pcbbrew.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http pcbbrew-mcp https://pcbbrew.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://pcbbrew.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "pcbbrew-mcp": {
      "serverUrl": "https://pcbbrew.dev/mcp"
    }
  }
}

Let your agent find its tools

Find servers like PCBBrew MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

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Do you run PCBBrew MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

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