MCP Verification Gate: conformance and disclosure checker for MCP servers

by ogasurfproject-jpg Your server? Claim it

answering

MCP Verification Gate: conformance and disclosure checker for MCP servers is answering right now. Last checked 10 min ago. It exposes 5 tools. Last commit 10 Sep 2026.

Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.

Uptime history 33 days of history · worst day 50%

33 days agonow

100.0%

Uptime 24h

184 of 184 checks

Tools

read from the server

90 ms

Response time

average over 24h

Stars

last commit 10 Sep 2026

What changed 35

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.

10 Sep a tool changed version4 times that day

9 Sep a tool changed version6 times that day

6 Sep a tool changed version8 times that day

5 Sep a tool changed version6 times that day

4 Sep a tool changed version4 times that day

30 Aug a tool changed version2 times that day

21 Aug a tool appeared is_verified

18 Aug a tool description was rewritten lookup_server

17 Aug a tool changed version

15 Aug a tool appeared lookup_server

and 25 more, back to 9 August 2026

Nothing serious here today

Today is the operative word: we check MCP Verification Gate: conformance and disclosure checker for MCP servers every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add hs-verify-gate --transport http https://hs-verify-gate.oga-surf-project.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "hs-verify-gate": {
      "url": "https://hs-verify-gate.oga-surf-project.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.hs-verify-gate]
url = "https://hs-verify-gate.oga-surf-project.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "hs-verify-gate": {
      "url": "https://hs-verify-gate.oga-surf-project.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "hs-verify-gate": {
      "url": "https://hs-verify-gate.oga-surf-project.workers.dev/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

conditions

get_conditions

Return the five conditions this gate measures, what it explicitly does not verify, and the tier definitions. Takes no arguments and returns identical output every time. Read this before running a check so you know what a verdict does and does not claim.

conformance

check_conformance

Measure a public MCP endpoint against five conditions: it speaks MCP, it publishes an A2A agent card, it declares who pays it, identical input returns identical output, and the verdict itself can be recomputed by anyone. Free, no key. Conformance and disclosure only; this says nothing about whether any figure the checked server returns is correct. By default no tool on the checked server is called, so determinism comes back as not measured rather than guessed. Set allow_tool_call true only for a server you control.

lookup

lookup_server

Look up what this register already holds about an MCP endpoint: whether it is watched, how often it is re-measured, how many measurements exist, when the first and latest were taken, and the latest verdict with the record_sha256 you can recompute yourself. Reads stored measurements only. It contacts nothing and measures nothing, so use check_conformance for a fresh reading. An endpoint that is absent is reported as absent and that is NOT a negative verdict: it means nobody has measured it here, not that it failed.

verified

is_verified

A single machine-first answer for an agent deciding whether to trust an MCP endpoint BEFORE it connects. Returns verified (true only when the latest scheduled measurement passed every measured condition; null otherwise, never false), a state enum saying which case it is, measured_at, and a record_sha256 with a recompute_url so you can check the verdict without trusting this gate. Reads the stored register only: it contacts nothing and measures nothing. Absent and pending are reported honestly and are NOT negative verdicts. For a fresh measurement rather than the stored one, use check_conformance.

verify

verify_verdict

Take a verdict this gate issued and recompute its record_sha256 independently. Removes record_sha256 and recompute_note, serialises the remainder in key order, and hashes it. Returns whether the verdict was altered after it was issued. You do not have to trust the party that issued the verdict, including this one.

Endpoints

URL	Transport	State	Latency	Checked
https://hs-verify-gate.oga-surf-project.workers.dev/mcp	streamable-http	answering	105 ms	10 min ago
https://gate.horizonshield.dev/mcp	streamable-http	answering	114 ms	10 min ago

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MCP Verification Gate: conformance and disclosure checker for MCP servers — questions

Answers built from our own checks of this server.

What can MCP Verification Gate: conformance and disclosure checker for MCP servers do?

It exposes 5 tools, read directly from the server on our last check. Among them: check_conformance, get_conditions, is_verified, lookup_server, verify_verdict. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is MCP Verification Gate: conformance and disclosure checker for MCP servers working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 184 of 184 checks got a reply (100.0%), average response time 90 ms. The bar chart above shows every period we have measured.

How do I connect MCP Verification Gate: conformance and disclosure checker for MCP servers?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does MCP Verification Gate: conformance and disclosure checker for MCP servers need an API key?

No. MCP Verification Gate: conformance and disclosure checker for MCP servers completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MCP Verification Gate: conformance and disclosure checker for MCP servers?

It answers our handshake in 90 ms on average, which is faster than 86% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is MCP Verification Gate: conformance and disclosure checker for MCP servers open source?

Yes — it is published under the MIT licence, written in HTML, 1 stars on GitHub and 8 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.