Arcnm vs OpenFab
A side-by-side look at the Arcnm and OpenFab MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
A
ArcnmIndustrial & IoT · Remote HTTP/SSEManufacturing should-cost from CAD and drawings: cost drivers, process plan, lot sizes.39FairAuth: no auth requiredVerdict: choose Arcnm for industrial & iot work over a hosted endpoint; choose OpenFab for industrial & iot over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
AChoose Arcnm when
- You need dedicated capabilities in the Industrial & IoT domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: No auth required.
Choose OpenFab when
- You need dedicated capabilities in the Industrial & IoT domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
discover_capabilities, request_quote, refine_quote.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | A Arcnm | |
|---|---|---|
| Category | Industrial & IoT | Industrial & IoT |
| Quality signal | 39/100 · Fair | 45/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Remote HTTP/SSE |
| Auth | No auth required | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | — | 0 |
| Directory activity | 0 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | Not listed | 7 |
| Full listing | View Arcnm | View OpenFab |
Tools & capabilities
Arcnm tools
No tool names declared yet. Check the project README from the listing page.
OpenFab tools 7
discover_capabilitiesrequest_quoterefine_quoteget_lead_timedfm_feedbackestimate_bomcompare_processes
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.
Arcnm
{
"mcpServers": {
"arcnm": {
"url": "https://arcnm.io/docs/mcp"
}
}
}
OpenFab
{
"mcpServers": {
"openfab": {
"url": "https://openfab-22100483453.us-central1.run.app/mcp/"
}
}
}
Frequently asked questions
Arcnm is categorized under Industrial & IoT and uses a remote HTTP/SSE transport. OpenFab belongs to Industrial & IoT and uses a remote HTTP/SSE transport. Pick Arcnm for industrial & iot work and OpenFab 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.
Arcnm has no declared pricing — check the project's own site. Auth: no auth required. OpenFab 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 arcnm and openfab as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Arcnm has a quality signal of 39/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. OpenFab has 45/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.