bots.st/mcp-verification-gate
MCP Verification Gate
Verify MCP server existence and conformity
14 ms
answered our call
- State
- Answered
- Protocol
- A2A 1.0
- Skills listed
- 5
How to reach it
- A2A, JSON-RPC
https://gate.horizonshield.dev/a2a - A2A card
https://gate.horizonshield.dev/.well-known/agent-card.json
What it can do
| Skill | What it says it does |
|---|---|
Conformance check | POST /check with an MCP endpoint URL, or call the check_conformance tool over MCP at /mcp. Returns a verdict with a recomputable SHA-256. Over A2A (SendMessage at /a2a), a text part carrying an MCP endpoint URL returns this gate's current register reading for it (the same bytes as GET… |
Register lookup | Look up an endpoint's record on the public register: its latest verdict, state, and record SHA-256, with a recompute URL. Served by the lookup_server tool over MCP at /mcp. Over A2A (SendMessage at /a2a) a text part carrying the endpoint URL returns only the register reading (state, record SHA-256… |
Verdict verification | Recompute the SHA-256 of a verdict this gate issued, so you do not have to trust the issuer. Served by the verify_verdict tool over MCP at /mcp. The A2A interface (SendMessage at /a2a) does not route by skill and does not perform this one: a text part carrying an https URL gets the register… |
Verification conditions | Return the exact conditions this gate measures (MCP reachability, agent card, compensation disclosure, deterministic output) and how each verdict is recomputed. Served by GET /spec and by the get_conditions tool over MCP at /mcp. The A2A interface (SendMessage at /a2a) does not route by skill and… |
Verification status | Report whether an endpoint's latest measurement passed all measured conditions. Returns true or null (state: verified, pending, held, watched, absent), never false. Served by GET /is-verified and the is_verified tool over MCP. Over A2A (SendMessage at /a2a), a text part carrying the endpoint URL… |
In its maker's words
Checks whether an MCP server exists, publishes an agent card, discloses who pays it, and returns identical output for identical input. Free. Conformance and disclosure only; this gate does not verify that any price returned by a checked server is correct. Cloudflare in front of this gate refuses some default client signatures, such as Python urllib, with HTTP 403 and error code 1010 before the…
- Website
- shield.the-horizons-innovation.com
- Publisher
- horizonshield.dev (2 listings in the registry)
- Listed from
- its own agent card, found through agentpeering.com
- Version
- 0.4.24, updated 7 Nov 2026
- Kinds of work
- Security and trust, AI models and agent tools, Browser and automation
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 | 14 ms | |
| Answered | 22 ms |
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