not read yet
Use
- For
- Buyers sourcing space and defence hardware parts who need to find manufacturers by specification.
- Activity
- Actively maintainedsite updated 3 weeks ago
- Used for
- locate suppliers that can make a given part
- compare suppliers by certification such as AS9100
- request sourcing for parts not listed in the catalogue
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantswhobuildsit.com ↗
- MCP servercom.whobuildsit/catalogverified in the MCP registry
- Stateanswers, 7 toolschecked 2026-10-27
- Address to connectwhobuildsit.com/mcp
- MCP docswhobuildsit.com/aithe vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Onlinecomponents.com
Sells electronic components from authorized manufacturers online, with parametric search, stock and pricing data, and datasheets.
23k - #2
MatiMCP · open
Matches buyers' product requests with suppliers and freight forwarders, collecting quotes and tracking orders through to delivery.
1.1kActiveFrom $1/mo - #3
UNITEMFGMCP · sign-in
Searchable directory of U.S. manufacturer records that buyers use to research and contact suppliers directly.
53Active2025 - #4
Which SensorMCP · sign-in
Sources industrial sensors from many manufacturers and matches described needs to products through a chat advisor.
37Active - #5
CarChatMCP · open
Searches dealer inventory by natural language and routes inquiries directly to dealerships.
33ActiveFree2026 - #6
Dashnode
Generates CNC machining cost estimates from CAD files in seconds.
23ActiveContact sales
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use whobuildsit for?
Sign in to leave a noteWhat is whobuildsit?
Searches space and defence hardware suppliers by specification, material, process or certification, and routes sourcing requests to manufacturers. It is listed in the Atlas under Commerce.
Who is whobuildsit for?
Buyers sourcing space and defence hardware parts who need to find manufacturers by specification.
Do people use whobuildsit?
Little sign of use.
Is whobuildsit still maintained?
Actively maintained: site updated 3 weeks ago.
What are alternatives to whobuildsit?
In Commerce, by use: Onlinecomponents.com, Mati, UNITEMFG, Which Sensor, CarChat, Dashnode.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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