whobuildsit — space & defence hardware suppliers
REMOTE · WHOBUILDSIT.COM
Find space and defence hardware suppliers and parts by specification, process and certification.
Available components
Last scanned (3 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 18 Oct 2026.
Category E-commerce
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability70
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 857 tokens (~122/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage86
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 59% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 17 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Oct 26 +1
- Stability: unverified → 0.07 ▲ functional
- 10 Oct 26 65
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 18 Oct 2026 · Probed https://whobuildsit.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=whobuildsit.com | CN=YE1,O=Let's Encrypt,C=US | 15 Sept 2026 | 14 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 65ae585583f0e360565ec49c21f83663064 |
| SANs: *.whobuildsit.com, whobuildsit.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of whobuildsit.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| whobuildsit.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://whobuildsit.com/mcp | Verified | 200 | |
| http (plaintext) | http://whobuildsit.com/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
explain_standard Explain a certification or standard ~64
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.
| Name | Type | Req | Description |
|---|---|---|---|
| standard | string | yes | – |
No output schema declared.
No examples provided.
get_part Get a part with all specifications ~37
All specifications for one part, whether the manufacturer confirmed them, and the supplier.
| Name | Type | Req | Description |
|---|---|---|---|
| id | integer | yes | Part id from a search result |
No output schema declared.
No examples provided.
get_supplier Get a supplier profile ~59
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.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Supplier slug from a search result |
No output schema declared.
No examples provided.
list_categories List part categories ~35
The part tree (segment → assembly → component) with supplier counts. Use to see what the index covers and where it has gaps.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
request_quote Request a quote from matching suppliers ~243
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 when you have one. Suppliers reply to the user directly; nothing is sent automatically.
| Name | Type | Req | Description |
|---|---|---|---|
| buyer_company | string | – | – |
| buyer_country | string | – | – |
| buyer_email | string | yes | The user's work email, as they gave it |
| buyer_name | string | – | – |
| consent | boolean | yes | true only if the user explicitly agreed to share this request and their email with suppliers |
| export_controlled | string | – | ITAR/EAR or similar |
| nda | boolean | – | true if the user will only share drawings after suppliers sign an NDA |
| needed_by | string | – | Date or lead time |
| part_id | integer | – | – |
| quantity | string | – | – |
| requirement | string | yes | What is needed: part, specification, material, tolerance, certification, drawings available |
| supplier_slug | string | – | – |
No output schema declared.
No examples provided.
search_parts Search parts by name or specification ~114
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.
| Name | Type | Req | Description |
|---|---|---|---|
| confirmed_only | boolean | – | Only parts whose data the manufacturer confirmed |
| limit | integer | – | – |
| query | string | yes | e.g. "3000 psi needle valve", "space heat pipe", "vacuum furnace 1250 C" |
No output schema declared.
No examples provided.
search_suppliers Search suppliers by capability ~143
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.
| Name | Type | Req | Description |
|---|---|---|---|
| certification | string | – | e.g. "AS9100D", "NADCAP", "ISO 9001" |
| country | string | – | e.g. "India", "United Kingdom", "USA" |
| limit | integer | – | – |
| query | string | – | Free text over name, description, capabilities and categories |
No output schema declared.
No examples provided.
How do I install the whobuildsit — space & defence hardware suppliers MCP server?
whobuildsit — space & defence hardware suppliers is a hosted endpoint at https://whobuildsit.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · whobuildsit.com
claude mcp add --transport http com-whobuildsit-catalog 'https://whobuildsit.com/mcp'
What is the whobuildsit — space & defence hardware suppliers MCP server?
whobuildsit — space & defence hardware suppliers is an MCP server listed in the public MCP registry as com.whobuildsit/catalog. Find space and defence hardware suppliers and parts by specification, process and certification. This page covers its hosted endpoint (https://whobuildsit.com/mcp).
Is the whobuildsit — space & defence hardware suppliers MCP server safe to use?
whobuildsit — space & defence hardware suppliers scores 68 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the whobuildsit — space & defence hardware suppliers MCP server expose?
whobuildsit — space & defence hardware suppliers exposes 7 tools: search_parts, search_suppliers, get_supplier, get_part, explain_standard, and 2 more. Their descriptions and schemas cost roughly 695 tokens of context every time the server is loaded.
Does the whobuildsit — space & defence hardware suppliers MCP server require authentication?
No. We connected to whobuildsit — space & defence hardware suppliers without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the whobuildsit — space & defence hardware suppliers MCP server still maintained?
whobuildsit — space & defence hardware suppliers is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.