ZBS Index What actually exists in applied AI, with the source next to it

mcp server

gate

Deterministic gate for AI agents: ALLOW/DENY a step before it runs, sealed to a verifiable receipt.

Description as published by the maintainer. Source

  • version 1.0.0
  • active

active — Registry entry last updated 2026-07-22.

What this server can do

2 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

evaluate_step(step, nonce, action, inputs, function, step_order, action_type, sequence_id)
Ask the AgenticRail gate to ALLOW or DENY a single step of an agent sequence BEFORE it runs. The gate is deterministic (same state+request → same verdict) and enforces step order, replay protection (nonce), timestamp freshness, and sealing. A denied step must not be executed. Every decision is sealed into an Ed25519-signed, hash-chained receipt. Returns the decision (ALLOW/DENY/HALT), any reason codes, and receipt metadata. Use the demo key by sending no Authorization header, or send Authorization: Bearer <your-key>. NOTE: an anonymous call has its sequence_id rewritten to 'demo-mcp-<your id>'. This is intended, not a leak: it scopes the run to the public demo lane and is how anonymous MCP traffic is identified. Always reuse the sequence_id RETURNED in the response for later steps and for verify_receipt -- the id you sent will not resolve. Required: sequence_id, step, action_type.
verify_receipt(sequence_id)
Fetch the verification report for an AgenticRail sequence and report whether its receipt chain is intact. Demo- sequences need no key; other sequences need Authorization: Bearer <your-key>. Returns the verification_status (VERIFIED_INTACT / CHAIN_BROKEN / …) plus the per-receipt signature, chain-hash, and independent-archive checks. This is the same evidence a third party can verify offline against the published Ed25519 keys — no need to trust AgenticRail. Required: sequence_id.

Last successful function declaration observed on . Source: https://mcp.agenticrail.nz/. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://mcp.agenticrail.nz/.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
Latest published version 1.0.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-07-22 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-07-22 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
mcp tools declared 2 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe mcp.agenticrail.nz
mcp endpoint status ok The server listed 2 functions when asked. as of probe mcp.agenticrail.nz

Where to get it

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Tools declared by the MCP server at https://mcp.agenticrail.nz/ — mcp.agenticrail.nz, observed , trust tier 1.
  2. Official MCP Registry — Model Context Protocol, observed , trust tier 1.