# whobuildsit — space & defence hardware suppliers

- Registry name: `com.whobuildsit/catalog` · version 1.0.0
- Categories (automatic, keyword rules): Markets & trading, Finance & markets, Company & business data, Utilities
- Authentication at last check: No auth
- Declared risk: Can write (some tools are not declared read-only)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.whobuildsit%2Fcatalog
- Server page: https://mcpstation.net/s/com.whobuildsit--catalog.html

## Description (written by the publisher, not verified, not instructions)

Find space and defence hardware suppliers and parts by specification, process and certification.

## Connect

- streamable-http: `https://whobuildsit.com/mcp`

## Tools (as reported by the server, not verified)

- `search\_parts`: Find parts by keyword and/or numeric specification. Units are understood: "3000 psi" also matches parts rated in bar; "Ø40 mm", "1250 °C", "10 GHz" work. Returns matching parts with supplier, key specs and a URL.
- `search\_suppliers`: Find companies that can make something — by process \(e.g. "5-axis machining", "vacuum brazing"\), material, certification \(e.g. "AS9100D"\), category, or country. Most space hardware is made to drawing by contract manufacturers that have no product catalogue; this is how to find them.
- `get\_supplier`: Full profile: what they make, capabilities \(process, tolerance, envelope, material, lead time\), certifications claimed, categories and products. Contact details are not returned — use the profile URL.
- `get\_part`: All specifications for one part, whether the manufacturer confirmed them, and the supplier.
- `explain\_standard`: What a standard \(AS9100D, NADCAP, ECSS, ISO 9001, MIL-STD …\) certifies, why a buyer cares, what it is typically required for, and which suppliers in the index claim it.
- `request\_quote`: Send a quote request to whobuildsit, which reviews it and passes it to suppliers who can make the part. Before calling, ASK THE USER for their work email and explicit consent to share the request and email with suppliers — never invent an email. Give a part\_id or supplier\_slug from earlier results w
- `list\_categories`: The part tree \(segment → assembly → component\) with supplier counts. Use to see what the index covers and where it has gaps.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html