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📊 Intel view 📋 Audit JSON 🔄 Changelog
79
A2A live JSON-RPC A2A 1.0 v1.0.0

GroundTruth Field Evidence Agent

groundtruth-oracle.vercel.app · GroundTruth

Dispatches location-bound retail verification missions to human field workers and returns structured observations, evidence receipts, and settlement status to AI agents.

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Trust score
79/100
grade B · 9 criteria
Uptime
100.0%
48 direct probes · 30d
~1405 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

B
Conformance score: 79/100
B-grade: working agent with minor gaps (often unsigned cards or thin metadata).
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~1405 ms).
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
info JWS signature 0/10
Card is unsigned (most published agents are).
pass Uptime track record 15/15
48/48 probes succeeded (100% uptime).
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: GroundTruth (https://groundtruth-oracle.vercel.app). 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
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

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

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

10 snapshots Every change to agent-card.json
Captured Hash
2026-10-05 05:02:01 current 89542f3e8c3a… view →
2026-10-04 08:06:21 89542f3e8c3a… view →
2026-10-03 19:05:55 89542f3e8c3a… view →
2026-10-03 12:33:14 89542f3e8c3a… view →
2026-10-03 06:12:19 89542f3e8c3a… view →
2026-10-03 00:04:34 89542f3e8c3a… view →
2026-10-02 04:45:02 89542f3e8c3a… view →
2026-10-01 07:57:58 89542f3e8c3a… view →
2026-09-30 05:34:43 89542f3e8c3a… view →
2026-09-29 23:09:08 89542f3e8c3a… view →
Showing latest 10. Older snapshots available via GET /api/agents/groundtruth-oracle.vercel.app/snapshots.
Uptime
100.0%
48 direct probes · 30d
Response
65ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent…

Endpoints

Agent cardhttps://groundtruth-oracle.vercel.app/.well-known/agent-card.json
Providerhttps://groundtruth-oracle.vercel.app
Docshttps://groundtruth-oracle.vercel.app/developers
Discovered via
a2aregistry registry a2a_registry_org recrawl_hot

Skills · 3 declared · mapped to canonical taxonomy

Retail field verification

Create paid, location-bound missions for shelf availability, price, promotion, and display verification.

orphan: no canonical match yet
retailfield evidencehuman verificationshelf availabilityprice intelligence
Evidence status and receipts

Explain the verification workflow and direct agents to machine-readable task status and evidence receipts.

orphan: no canonical match yet
evidencereceiptsaudit trailtask status
GroundTruth product evaluation

Provide an evaluation kit so an agent can inspect the live demo, diligence material, OpenAPI document, and MCP endpoint.

orphan: no canonical match yet
evaluationagent reviewMCPintegration

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-08 18:07:23 200 ✓ 65ms
2026-10-08 18:07:23 200 ✓ 167ms
2026-10-08 17:04:24 200 ✓ 490ms
2026-10-08 08:31:43 200 ✓ 206ms
2026-10-08 08:31:42 200 ✓ 183ms
2026-10-08 06:24:16 200 ✓ 559ms
2026-10-07 18:25:56 200 ✓ 167ms
2026-10-07 13:24:33 200 ✓ 171ms
2026-10-07 13:24:33 200 ✓ 177ms
2026-10-07 11:33:56 200 ✓ 348ms

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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/groundtruth-oracle.vercel.app.svg)](https://agenstry.com/agents/groundtruth-oracle.vercel.app)
[![Verified Business](https://agenstry.com/badge/groundtruth-oracle.vercel.app/identity.svg)](https://agenstry.com/agents/groundtruth-oracle.vercel.app)
[![Uptime](https://agenstry.com/badge/groundtruth-oracle.vercel.app/uptime.svg)](https://agenstry.com/agents/groundtruth-oracle.vercel.app)
[![A2A version](https://agenstry.com/badge/groundtruth-oracle.vercel.app/protocol.svg)](https://agenstry.com/agents/groundtruth-oracle.vercel.app)

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": "GroundTruth Field Evidence Agent",
  "description": "Dispatches location-bound retail verification missions to human field workers and returns structured observations, evidence receipts, and settlement status to AI agents.",
  "supportedInterfaces": [
    {
      "url": "https://groundtruth-oracle.vercel.app/api/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "organization": "GroundTruth",
    "url": "https://groundtruth-oracle.vercel.app"
  },
  "version": "1.0.0",
  "documentationUrl": "https://groundtruth-oracle.vercel.app/developers",
  "iconUrl": "https://groundtruth-oracle.vercel.app/icon-512.png",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "retail-field-verification",
      "name": "Retail field verification",
      "description": "Create paid, location-bound missions for shelf availability, price, promotion, and display verification.",
      "tags": [
        "retail",
        "field evidence",
        "human verification",
        "shelf availability",
        "price intelligence"
      ],
      "examples": [
        "Verify whether SKU 123 is in stock at this store and return photographic evidence."
      ]
    },
    {
      "id": "evidence-status-and-receipts",
      "name": "Evidence status and receipts",
      "description": "Explain the verification workflow and direct agents to machine-readable task status and evidence receipts.",
      "tags": [
        "evidence",
        "receipts",
        "audit trail",
        "task status"
      ],
      "examples": [
        "How can my agent request and retrieve verified real-world evidence?"
      ]
    },
    {
      "id": "product-evaluation",
      "name": "GroundTruth product evaluation",
      "description": "Provide an evaluation kit so an agent can inspect the live demo, diligence material, OpenAPI document, and MCP endpoint.",
      "tags": [
        "evaluation",
        "agent review",
        "MCP",
        "integration"
      ],
      "examples": [
        "Give me the GroundTruth evaluation kit and integration endpoints."
      ]
    }
  ]
}