Carbon vs RoastPilot

A side-by-side look at the Carbon and RoastPilot MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Carbon logoCarbonIndustrial & IoTOpen-source manufacturing ERP, MES and QMS. Quoting, MRP, inventory, shop floor, quality and lot/serial traceability on one Postgres schema, with a REST API and MCP server. Self-host or use Carbon Cloud.52GoodAuth: not declaredRoastPilot logoRoastPilotIndustrial & IoT · Local subprocess (stdio)RoastPilot controls coffee roasting sessions through local stdio MCP tools and exports logs.40FairAuth: not declared

Verdict: choose Carbon for industrial & iot work; choose RoastPilot for industrial & iot as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Carbon logoChoose Carbon when

  • You need dedicated capabilities in the Industrial & IoT domain.
  • You have the keys it needs: CARBON_API_KEY.
Explore Carbon

RoastPilot logoChoose RoastPilot when

  • You need dedicated capabilities in the Industrial & IoT domain.
  • You prefer a local stdio subprocess transport.
Explore RoastPilot

Feature & specification comparison

Rows where the two servers differ are marked.

SpecCarbon logoCarbonRoastPilot logoRoastPilot
CategoryIndustrial & IoTIndustrial & IoT
Quality signal52/100 · Good40/100 · Fair
Install commandNot confirmed yetConfirmed
Transport—Local subprocess (stdio)
AuthNot declaredNot declared
PricingFreeNot declared
Required env varsCARBON_API_KEYNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars2,7560
Directory activity 4 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Carbon tools

No tool names declared yet. Check the project README from the listing page.

RoastPilot tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Carbon

No confirmed install command for Carbon yet — follow the setup steps linked from its listing page rather than a guessed package name.

RoastPilot

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "roastpilot": {
      "command": "uvx",
      "args": [
        "coffee-roaster-mcp"
      ]
    }
  }
}

Frequently asked questions

Carbon is categorized under Industrial & IoT and uses an install path we have not confirmed yet. RoastPilot belongs to Industrial & IoT and uses a local stdio subprocess. Pick Carbon for industrial & iot work and RoastPilot for industrial & iot.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Carbon has no confirmed install command yet — follow its own setup instructions.

Carbon is listed as free. RoastPilot has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add carbon-2 and roastpilot as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Carbon has a quality signal of 52/100 (Good) with 4 views, 0 installs and 2,756 GitHub stars. RoastPilot has 40/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.