OpenFab vs Filesystem

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

OpenFab logoOpenFabIndustrial & IoT · Remote HTTP/SSEExperimental sandbox: custom-manufacturing quotes, lead time, DFM. Not a real supplier.51GoodAuth: not declaredFilesystem logoFilesystemFile Systems · Local subprocess (stdio)Secure file operations with configurable access controls.85ExcellentAuth: no auth required

Verdict: choose OpenFab for industrial & iot work over a hosted endpoint; choose Filesystem for file systems as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

OpenFab logoChoose 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.
Explore OpenFab

Filesystem logoChoose Filesystem when

  • You need dedicated capabilities in the File Systems domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like path, head, tail.
Explore Filesystem

Feature & specification comparison

Rows where the two servers differ are marked.

SpecOpenFab logoOpenFabFilesystem logoFilesystem
CategoryIndustrial & IoTFile Systems
Quality signal51/100 · Good85/100 · Excellent
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listing Verified
GitHub stars091,526
Directory activity 1 views 0 installs 0 upvotes 11 views 0 installs 0 upvotes
Tools717

Tools & capabilities

OpenFab tools 7

  • discover_capabilitiesList supported manufacturing processes, materials, and the fields an estimate accepts.
  • request_quoteGet an instant cost estimate for a custom manufactured part. Returns unit price, total, lead time, and assumptions. Indicative and non-binding.
  • refine_quoteRefine a previous estimate (change quantity, material, tolerance, finish) by passing its quote_token.
  • get_lead_timeEstimated production lead time in days, by process and quantity.
  • dfm_feedbackRule-based design-for-manufacturability feedback for a part specification.
  • estimate_bomEstimate costs for a multi-part bill of materials in one call. Each part: {process, quantity, material?, bounding_box_mm?, tolerance_mm?, finish?}. Returns per-line estimates, a BOM total, and the longest lead time. Indicative and non-binding. Max 50 lines.
  • compare_processesCompare cost and lead time for one part across manufacturing processes. Provide 2-8 process names and a quantity; returns per-process estimates sorted by total cost, plus a lowest-cost / shortest-lead-time note. Indicative and non-binding.

Filesystem tools 17

  • path
  • head
  • tail
  • paths
  • content
  • edits
  • oldText
  • newText
  • dryRun
  • sortBy
  • source
  • destination
  • +5 more on 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.

OpenFab

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "openfab": {
      "url": "https://openfab-22100483453.us-central1.run.app/mcp/"
    }
  }
}

Filesystem

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem"
      ]
    }
  }
}

Frequently asked questions

OpenFab is categorized under Industrial & IoT and uses a remote HTTP/SSE transport. Filesystem belongs to File Systems and uses a local stdio subprocess. Pick OpenFab for industrial & iot work and Filesystem for file systems.

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.

OpenFab has no declared pricing — check the project's own site. Filesystem is listed as free. Auth: no auth required. 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 openfab and filesystem as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, OpenFab has a quality signal of 51/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Filesystem has 85/100 (Excellent) with 11 views, 0 installs and 91,526 GitHub stars.