Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
85
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.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain groundtruth-oracle.vercel.app 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. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
62/100
grade C · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 62/100
C-grade: usable but has clear conformance issues, review the breakdown below.
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.
partial Protocol version 8/10
Declares A2A 1.0 but missing supportedInterfaces[] (required in v1.0, update your card to reach 10/10).
How to earn +2 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 0 probes 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: 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.
⚠ 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 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.

Uptime
not measured
0 direct probes · 30d
Response
—
no direct probe retained
Skills
3
declared
Streaming
—
SSE-capable

Try it

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

calling agent…

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

Similar agents embedding-nearest

groundcheck.seiche.info
Groundcheck is verified enrichment for AI agents. Send a factual claim and it returns a machine verified verdict with a confidence score and
groundcheck.seiche.info · q 80%
data-ground-truth.agentutil.net
Verify facts and benchmark metrics against industry baselines. Combines verify (live fact-checking) with norm (statistical benchmarking).
data-ground-truth.agentutil.net · q 45%
Base Agent Evidence & Route API
Paid, finality-aware Base account and transaction evidence, bounded activity lookup, and dry Base-USDC-to-NEAR-USDC route quotes.
merchant-base.mikedotexe.com · q 65%
Daystruct Evidence Agent live
Public read-only access to provenance-backed AI infrastructure and software evidence. It returns evidence and uncertainty; it does not take
Daystruct · q 100%
Daystruct Evidence Agent live
Public read-only access to provenance-backed AI infrastructure and software evidence. It returns evidence and uncertainty; it does not take
Daystruct · q 100%
api.veritylayer.dev
Fact-check a claim before your agent acts on, repeats, or ships it — verify a claim, is this true, catch hallucinations. Independent, fail-c
api.veritylayer.dev · q 45%

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",
  "url": "https://groundtruth-oracle.vercel.app/api/a2a",
  "description": "Dispatches location-bound retail verification missions to human field workers and returns structured observations, evidence receipts, and settlement status to AI agents.",
  "version": "1.0.0",
  "documentationUrl": "https://groundtruth-oracle.vercel.app/developers",
  "iconUrl": "https://groundtruth-oracle.vercel.app/icon-512.png",
  "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."
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "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?"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "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."
      ],
      "inputModes": [],
      "outputModes": []
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "protocolVersion": "1.0",
  "provider": {
    "organization": "GroundTruth",
    "url": "https://groundtruth-oracle.vercel.app/"
  }
}