bots.st/mcp-verification-gate-check-an-mcp-server-or-an
MCP Verification Gate: check an MCP server or an A2A agent before you connect or
Verify MCP or A2A before delegation
286 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 6
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://gate.horizonshield.dev/mcp
What it can do
| Tool | What it says it does |
|---|---|
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… |
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. |
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… |
lookup_server | Returns one record (not a list). 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… |
preflight_agent | Call this before handing work to an A2A agent you have not used before. Fetches the agent's public card (https://<agent>/.well-known/agent-card.json, one request), reports whether it declares the A2A Conduct Extension, who it says pays it (the compensation declaration, as declared and not… |
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… |
In its maker's words
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
- Website
- shield.the-horizons-innovation.com/verify-directory
- Source
- github.com/ogasurfproject-jpg/horizon-shield
- Publisher
- ogasurfproject-jpg (11 listings in the registry)
- Listed from
- the official MCP Registry as
io.github.ogasurfproject-jpg/hs-verify-gate - Version
- 0.4.24, updated 6 Nov 2026
- Kinds of work
- Security and trust, AI models and agent tools, Search and research
The domain it lives on
- horizonshield.dev
- registered 9 Aug 2026 (3 months ago), at Cloudflare, Inc., its name does not resolve now
- the-horizons-innovation.com
- registered 27 May 2024 (2 years ago), at GMO Internet Group, Inc. d/b/a Onamae.com, its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 286 ms | |
| Answered | 2234 ms | |
| Answered | 221 ms |
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