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📊 Intel view 📋 Audit JSON 🔄 Changelog
80
A2A A2A 0.3.0 v1.0.0

Mercantry

mercantry.org · Mercantry

Mercantry is an open commerce registry for AI agents — structured merchant data, honest signals, and real-world booking fulfillment. Interoperability, honestly: this service speaks MCP (streamable-http) and REST/OpenAPI — it does NOT implement the A2A JSON-RPC protocol. This card is published for discovery; connect via the MCP endpoint in `url` or the REST interface in `additionalInterfaces`.

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Verify the domain mercantry.org via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
39/100
grade F · 9 criteria
Uptime
accumulating
1/5 probes
~224 ms response
Revenue · 30d
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 39/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Mercantry (https://mercantry.org). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-07-25 01:11:54 current af8e84e57d38… view →
Uptime
100.0%
1 probes
Response
845ms
last probe
Skills
3
declared
Streaming
SSE-capable

Skills · 3 declared · mapped to canonical taxonomy

Merchant discovery

Filter-based search over the restaurant registry (search_merchants), full per-merchant signal dumps with per-field provenance and raw transaction-verified feedb…

canonical UCP Catalog Exposure match 80%
searchrestaurantsmerchant-dataprovenanceno-ranking
Reservation booking (async)

Async table reservations: get_availability (honest v1 — availability is confirmed at booking time, not held live), place_booking, get_booking_status (poll or ca…

canonical Hotel Reservations match 84%
bookingreservationsasyncsandbox
Transaction-verified feedback

submit_feedback: report how a confirmed reservation actually went — accepted only against a confirmed booking_id, once per booking, within 14 days. Served raw t…

canonical Hotel Reservations match 82%
feedbackverifiedtrust

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-07-25 01:11:54 200 845ms

Cheaper or better alternatives per-skill

↑ 2 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/mercantry.org.svg)](https://agenstry.com/agents/mercantry.org)
[![Verified Business](https://agenstry.com/badge/mercantry.org/identity.svg)](https://agenstry.com/agents/mercantry.org)
[![Uptime](https://agenstry.com/badge/mercantry.org/uptime.svg)](https://agenstry.com/agents/mercantry.org)
[![A2A version](https://agenstry.com/badge/mercantry.org/protocol.svg)](https://agenstry.com/agents/mercantry.org)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "protocolVersion": "0.3.0",
  "name": "Mercantry",
  "description": "Mercantry is an open commerce registry for AI agents \u2014 structured merchant data, honest signals, and real-world booking fulfillment. Interoperability, honestly: this service speaks MCP (streamable-http) and REST/OpenAPI \u2014 it does NOT implement the A2A JSON-RPC protocol. This card is published for discovery; connect via the MCP endpoint in `url` or the REST interface in `additionalInterfaces`.",
  "url": "https://mercantry.org/mcp",
  "preferredTransport": "MCP",
  "additionalInterfaces": [
    {
      "url": "https://mercantry.org/mcp",
      "transport": "MCP"
    },
    {
      "url": "https://mercantry.org/v1",
      "transport": "REST"
    }
  ],
  "provider": {
    "organization": "Mercantry",
    "url": "https://mercantry.org"
  },
  "version": "1.0.0",
  "documentationUrl": "https://github.com/mercantry/registry",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "securitySchemes": {},
  "security": [],
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "merchant_discovery",
      "name": "Merchant discovery",
      "description": "Filter-based search over the restaurant registry (search_merchants), full per-merchant signal dumps with per-field provenance and raw transaction-verified feedback (get_merchant), and honest registry self-description including staleness (get_registry_meta). Never ranked: deterministic, documented ordering only. Reads are free and keyless. Current coverage: 168,524 real merchants across Hong Kong (31,676), Los Angeles, CA (26,754), Tokyo (110,094), plus 500 sandbox test merchants.",
      "tags": [
        "search",
        "restaurants",
        "merchant-data",
        "provenance",
        "no-ranking",
        "open-data"
      ],
      "examples": [
        "Find vegetarian-friendly restaurants near Shinjuku that are open Friday 7pm",
        "Get every signal the registry holds on merchant X, including feedback history"
      ]
    },
    {
      "id": "booking",
      "name": "Reservation booking (async)",
      "description": "Async table reservations: get_availability (honest v1 \u2014 availability is confirmed at booking time, not held live), place_booking, get_booking_status (poll or callback_url webhooks), modify_booking, cancel_booking. Bookings are accepted only for phone-verified bookable merchants. Real-merchant fulfillment is NOT live yet: place_booking on a real merchant returns the structured rejection 'fulfillment_not_live'. The full booking loop is testable end-to-end against sandbox merchants (deterministic outcomes, never a real phone call).",
      "tags": [
        "booking",
        "reservations",
        "async",
        "sandbox"
      ],
      "examples": [
        "Book a table for 4 at a sandbox merchant tomorrow 19:00 and poll until confirmed",
        "Cancel a booking the human no longer wants"
      ]
    },
    {
      "id": "verified_feedback",
      "name": "Transaction-verified feedback",
      "description": "submit_feedback: report how a confirmed reservation actually went \u2014 accepted only against a confirmed booking_id, once per booking, within 14 days. Served raw to all agents via get_merchant; never editorialized, never scored.",
      "tags": [
        "feedback",
        "verified",
        "trust"
      ],
      "examples": [
        "Report that the merchant honored the reservation but seated the party late"
      ]
    }
  ],
  "supportsAuthenticatedExtendedCard": false
}