Own It
REMOTE · MCP.MODERNMUSTARDSEED.COM
Maps who controls a business web presence (domain, DNS, hosting, site) and the cost of leaving.
Available components
Last scanned (20 hours ago)
Scores higher than 74% of remote servers
Reachable. Last reached 22 Oct 2026.
Category Security
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 Security80
- 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 is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability66
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 708 tokens (~236/item across 3 items; 3 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 Management33
- Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (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.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 16 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.
- 14 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 12 Oct 26 72
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 22 Oct 2026 · Probed https://mcp.modernmustardseed.com/own-it
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.modernmustardseed.com | CN=YR2,O=Let's Encrypt,C=US | 11 Oct 2026 | 9 Jan 2027 | RSA 2048 | SHA256-RSA | 5037aab1b1b95f22d0713db17fad3a7354f |
| SANs: mcp.modernmustardseed.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.modernmustardseed.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| modernmustardseed.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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.modernmustardseed.com/own-it | Verified | 200 | |
| http (plaintext) | http://mcp.modernmustardseed.com/own-it | HTTPS enforced | 308 | https://mcp.modernmustardseed.com/own-it |
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 →
audit_ownership Audit who controls a business online ~343
Map who controls each layer of a business’s web presence and how hard each would be to leave, from public data only: domain registration over RDAP (registrar, registrant when public, EPP status and transfer locks, expiry, DNSSEC), DNS host from the nameservers, website platform from public fingerprints (Wix, Squarespace, Shopify, WordPress, Webflow, GoDaddy Website Builder, Duda, HighLevel, Framer, agency and franchise builders and others), email provider from MX and SPF, analytics and ad tag IDs present in the page (GA4, Tag Manager, Google Ads, Meta Pixel and others), call tracking, embedded booking, CRM, chat and email signup tools, and profile links including a Google Business Profile when supplied. Returns an ownership map with, per layer, who controls it, a portability rating, a plain-words reason, evidence, sources and the first step to take control, plus a 0 to 100 portability score. It cannot see inside any account, so ownership of a Google Business Profile or tag account is reported as a check to make, never guessed. Results are cached for 24 hours.
| Name | Type | Req | Description |
|---|---|---|---|
| business_name | string | – | The business’s legal or trading name. When given, it is compared with the registrant shown in the public domain record. |
| domain | string | yes | The business domain or website address, such as example.com or https://www.example.com/. Public names only. |
| profile_urls | array | – | Links to the business’s profiles, such as its Google Business Profile or Maps link, Facebook page, Instagram or Yelp page. They are classified, not fetched. |
No output schema declared.
No examples provided.
check_domain_control Check domain, DNS and email control ~171
Check who controls a domain, its DNS and its email, without reading the website: registrar and IANA id, registrant when the public record shows one, EPP status codes and transfer locks, registration and expiry dates, DNSSEC, nameservers and DNS host, and mail provider from MX and SPF. Returns a 0 to 100 control score, each layer with a reason and the first step to take control, and the raw registration facts. Shares the 24 hour cache with audit_ownership.
| Name | Type | Req | Description |
|---|---|---|---|
| business_name | string | – | The business’s legal or trading name. When given, it is compared with the registrant shown in the public domain record. |
| domain | string | yes | The business domain or website address, such as example.com or https://www.example.com/. Public names only. |
No output schema declared.
No examples provided.
list_fingerprints List detection rules ~112
List the rules Own It uses to name vendors: website platforms, hosts, agency builders and reseller registrars, DNS hosts, email providers, tag ID formats, call tracking, booking and CRM widgets, and profile sites, each with its public marker, portability rating and source. Without kind it returns counts per kind. Static reference, no network access.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | – | One kind of rule to list: website, hosting, agency, dns, email, tags, call_tracking, widgets or profiles. |
No output schema declared.
No examples provided.
How do I install the Own It MCP server?
Own It is a hosted endpoint at https://mcp.modernmustardseed.com/own-it, 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 · mcp.modernmustardseed.com
claude mcp add --transport http com-modernmustardseed-own-it 'https://mcp.modernmustardseed.com/own-it'
What is the Own It MCP server?
Own It is an MCP server listed in the public MCP registry as com.modernmustardseed/own-it. Maps who controls a business web presence (domain, DNS, hosting, site) and the cost of leaving. This page covers its hosted endpoint (https://mcp.modernmustardseed.com/own-it).
Is the Own It MCP server safe to use?
Own It scores 77 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 Own It MCP server expose?
Own It exposes 3 tools: audit_ownership, check_domain_control, list_fingerprints. Their descriptions and schemas cost roughly 626 tokens of context every time the server is loaded.
Does the Own It MCP server require authentication?
No. We connected to Own It without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Own It MCP server still maintained?
Own It is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.