MRX Public MCP
REMOTE · MRX-PUBLIC-MCP.VERCEL.APP · SCANNED OCT 4
Read-only, source-linked mineral-rights education from MineralRightsXchange.com.
Available components
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 Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 639 tokens (~71/item across 9 items; 8 tools + 1 resources), lean.Pass
- 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 Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (25% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 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
How do I install the MRX Public MCP server?
MRX Public MCP is a hosted endpoint at https://mrx-public-mcp.vercel.app/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 · mrx-public-mcp.vercel.app
claude mcp add --transport http underwriter-mrx-mrx-mcp 'https://mrx-public-mcp.vercel.app/mcp'
{
"mcpServers": {
"underwriter-mrx-mrx-mcp": {
"url": "https://mrx-public-mcp.vercel.app/mcp"
}
}
} {
"servers": {
"underwriter-mrx-mrx-mcp": {
"type": "http",
"url": "https://mrx-public-mcp.vercel.app/mcp"
}
}
} [mcp_servers.underwriter-mrx-mrx-mcp] url = "https://mrx-public-mcp.vercel.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"underwriter-mrx-mrx-mcp": {
"type": "remote",
"url": "https://mrx-public-mcp.vercel.app/mcp",
"enabled": true
}
}
} openclaw mcp add underwriter-mrx-mrx-mcp --url 'https://mrx-public-mcp.vercel.app/mcp' --transport streamable-http
mcp_servers:
underwriter-mrx-mrx-mcp:
url: "https://mrx-public-mcp.vercel.app/mcp" {
"McpServers": {
"underwriter-mrx-mrx-mcp": {
"Transport": "http",
"Url": "https://mrx-public-mcp.vercel.app/mcp"
}
}
} assistant mcp add underwriter-mrx-mrx-mcp -t streamable-http -u 'https://mrx-public-mcp.vercel.app/mcp'
{
"mcpServers": {
"underwriter-mrx-mrx-mcp": {
"type": "http",
"url": "https://mrx-public-mcp.vercel.app/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 3 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool coverage: 33% → 25% ▼ functional
- Schema quality: 64 → 71 ▼ functional
- Server version: 0.2.0 → 0.3.0 functional
- New tool “mrx_list_public_pages” functional
- New tool “mrx_website_capabilities” functional
- 29 Sept 26 +11
- Transport: fail → pass ▲ security
- 28 Sept 26 −10
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Sept 26 +9
- Authorization: unverified → partial ▲ security
- HSTS header: unverified → pass ▲ security
- 25 Sept 26 −8
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 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 4 Oct 2026 · Probed https://mrx-public-mcp.vercel.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.vercel.app | CN=WR1,O=Google Trust Services,C=US | 29 Aug 2026 | 27 Nov 2026 | RSA 2048 | SHA256-RSA | f7911168ffa7d0f4135e24792e7a52a8 |
| SANs: *.vercel.app | ||||||
| CN=WR1,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7fd9e2c2d2048a0474b627a26d0868a7 |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mrx-public-mcp.vercel.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| vercel.app. | 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; includeSubDomains; preload |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mrx-public-mcp.vercel.app/mcp | Verified | 200 | |
| http (plaintext) | http://mrx-public-mcp.vercel.app/mcp | HTTPS enforced | 308 | https://mrx-public-mcp.vercel.app/mcp |
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 →
fetch ~45
Fetch a verified public document by the canonical URL ID returned by search. Return source text, attribution and dates when available; never infer a review.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| metadata | object | – | – |
| text | string | yes | – |
| title | string | yes | – |
| url | string | yes | – |
No examples provided.
mrx_get_started ~44
Read MRX's current public homepage and its source-linked next-step links. This does not submit a request, create a case, or perform a human review.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
mrx_list_public_pages ~89
Discover current public pages, including website journeys and AI guide profiles. Categories: all, articles (blog paths), ai_guides, website. Pass content_revision on subsequent pages to detect a changing inventory. Read a page before citing it.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| content_revision | – | – | – |
| limit | integer | – | – |
| offset | integer | – | – |
No output schema declared.
No examples provided.
mrx_read_page ~68
Read one canonical public MRX page after sitemap, hash and indexability checks. Accepts only https://mineralrightsxchange.com/ URLs returned by search. Private routes, off-site URLs, queries, fragments and redirects are rejected.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | – |
No output schema declared.
No examples provided.
mrx_search_guides ~77
Search verified public MRX titles, headings and article text. Optional jurisdiction/topic filters are source-text matches, not legal conclusions. Coverage reports omissions. Do not include personal data in a research query.
| Name | Type | Req | Description |
|---|---|---|---|
| jurisdiction | – | – | – |
| limit | integer | – | – |
| query | string | yes | – |
| topic | – | – | – |
No output schema declared.
No examples provided.
mrx_status ~22
Check the current public sitemap/manifest, server capabilities and boundaries.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
mrx_website_capabilities ~63
Read current website capabilities from verified public sources. Sections: overview, ai_guides, investors (Graham), human_review. Returns website descriptions, not access to chat, bookings, uploads or private cases.
| Name | Type | Req | Description |
|---|---|---|---|
| section | string | – | – |
No output schema declared.
No examples provided.
search ~58
Search public MRX educational guides. Returns citable canonical document IDs. No private cases. Fetch each source before relying on it. An incomplete index produces an error rather than an apparently exhaustive compatibility response.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
What is the MRX Public MCP server?
MRX Public MCP is listed in the public MCP registry as io.github.underwriter-MRX/mrx-mcp. Read-only, source-linked mineral-rights education from MineralRightsXchange.com. This page covers its hosted endpoint (https://mrx-public-mcp.vercel.app/mcp).
Is the MRX Public MCP server safe to use?
MRX Public MCP 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 MRX Public MCP server expose?
MRX Public MCP exposes 8 tools: mrx_status, mrx_search_guides, search, fetch, mrx_read_page, and 3 more. Their descriptions and schemas cost roughly 466 tokens of context every time the server is loaded.
Does the MRX Public MCP server require authentication?
No. We connected to MRX Public MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the MRX Public MCP server still maintained?
MRX Public MCP is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.