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📊 Intel view 📋 Audit JSON 🔄 Changelog
76
A2A A2A 1.0 v1.0.0 x402 micropay

Martin Estate Winery

agents.martinestate.com

Single-vineyard estate-grown Napa Valley wine from Rutherford. Agent purchases via Tempo MPP, x402 USDC on Base, Solana MPP `solana/charge`, and Stripe SPT.

🛡
Own this agent?
Verify the domain agents.martinestate.com 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
29/100
grade F · 9 criteria
Uptime
accumulating
1/5 probes
~159 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: 29/100
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 0/25
Card declares a URL but that URL returns 404.
How to earn +25 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 8/10
Declares A2A 1.0 but missing supportedInterfaces[] (added in v1.0.0, update your card to reach 10/10).
How to earn +2 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.
partial Skill declaration 6/10
Declares 1 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 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 5/5
declares 1 modern capability flag(s) (x402); 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
2026-07-15 11:49:40 current e8af6fe14f84… view →
Uptime
100.0%
1 probes
Response
160ms
last probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://agents.martinestate.com/.well-known/agent-card.json
Docshttps://agents.martinestate.com/llms.txt
Discovered via
manifests

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-07-15 11:49:40 200 ✗ 160ms

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

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

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 
{
  "name": "Martin Estate Winery",
  "description": "Single-vineyard estate-grown Napa Valley wine from Rutherford. Agent purchases via Tempo MPP, x402 USDC on Base, Solana MPP `solana/charge`, and Stripe SPT.",
  "url": "https://agents.martinestate.com",
  "preferredTransport": "HTTP+JSON",
  "protocolVersion": "1.0",
  "version": "1.0.0",
  "capabilities": {
    "extensions": [
      {
        "uri": "https://ucp.dev/2026-04-08/specification/reference",
        "description": "UCP support: this agent serves Universal Commerce Protocol bindings via the A2A transport.",
        "required": false,
        "params": {
          "capabilities": {}
        }
      }
    ]
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "wine-purchase",
      "name": "Wine purchase",
      "description": "Buy single-vineyard Napa Valley wine via agent payments. Multi-rail (Tempo MPP, x402 USDC on Base, Solana MPP, Stripe SPT). KYC + 21+ + US-only.",
      "tags": [
        "commerce",
        "wine",
        "regulated",
        "age-gated",
        "us-jurisdiction"
      ]
    }
  ],
  "documentationUrl": "https://agents.martinestate.com/llms.txt"
}