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📊 Intel view 📋 Audit JSON 🔄 Changelog
46
A2A A2A 0.3.0 v1.0.0

Tellwren by CyberMax

tellwren.cybermax-tools.workers.dev · CyberMax

Tellwren identifies an everyday object from a photo, a name or a barcode and returns its cited story (Wikipedia, Open Food/Beauty/Products Facts). Free daily photo scans and lookups per visitor, no key; a Tellwren Pro licence key raises the limits.

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Verify the domain tellwren.cybermax-tools.workers.dev 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.
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Trust score
46/100
grade D · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 46/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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).
partial Live JSON-RPC 10/25
Card declares only gRPC / HTTP+JSON interfaces; the live probe covers JSON-RPC, so the endpoint was not exercised. Not a defect in the card.
How to earn +15 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
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"` (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 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: CyberMax (https://cybermaxtools.com). 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
partial Security declaration 2/5
Declares 2 security scheme(s) but none use PKCE or mTLS.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs →

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

1 snapshot Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-17 12:06:47 current 595582cc8d94… view →
Uptime
accumulating
1 direct probes · 30d
Response
146ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Skills · 3 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Identify an object from a photo

POST /api/identify with the photo bytes (JPEG, PNG or WebP, up to 1.5 MB) as the body returns the top guesses for what the object is (one Workers AI vision call…

No taxonomy category yet
object identificationbarcode lookupproduct factsimage recognitionwikipedia
Cited story for an object

GET /api/story?q=<name>&kind=<optional kind> searches the cited sources and returns the object's story, or candidates to pick from when unsure; GET /api/story?t…

No taxonomy category yet
object identificationbarcode lookupproduct factsimage recognitionwikipedia
Barcode to product facts

GET /api/barcode?bc=<EAN/UPC digits> returns the product name and facts from Open Food Facts, Open Beauty Facts or Open Products Facts (no AI).

No taxonomy category yet
object identificationbarcode lookupproduct factsimage recognitionwikipedia

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-17 12:06:47 200 — 146ms

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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/tellwren.cybermax-tools.workers.dev.svg)](https://agenstry.com/agents/tellwren.cybermax-tools.workers.dev)
[![Verified Business](https://agenstry.com/badge/tellwren.cybermax-tools.workers.dev/identity.svg)](https://agenstry.com/agents/tellwren.cybermax-tools.workers.dev)
[![Uptime](https://agenstry.com/badge/tellwren.cybermax-tools.workers.dev/uptime.svg)](https://agenstry.com/agents/tellwren.cybermax-tools.workers.dev)
[![A2A version](https://agenstry.com/badge/tellwren.cybermax-tools.workers.dev/protocol.svg)](https://agenstry.com/agents/tellwren.cybermax-tools.workers.dev)

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": "Tellwren by CyberMax",
  "description": "Tellwren identifies an everyday object from a photo, a name or a barcode and returns its cited story (Wikipedia, Open Food/Beauty/Products Facts). Free daily photo scans and lookups per visitor, no key; a Tellwren Pro licence key raises the limits.",
  "url": "https://tellwren.cybermaxtools.com",
  "preferredTransport": "HTTP+JSON",
  "version": "1.0.0",
  "provider": {
    "organization": "CyberMax",
    "url": "https://cybermaxtools.com"
  },
  "documentationUrl": "https://tellwren.cybermaxtools.com/llms.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "securitySchemes": {
    "licenceKey": {
      "type": "apiKey",
      "in": "header",
      "name": "x-licence",
      "description": "Tellwren Pro licence key (https://tellwren.cybermaxtools.com/pricing.json). Optional: the free tier needs no key and has a daily limit per visitor."
    },
    "licenceQuery": {
      "type": "apiKey",
      "in": "query",
      "name": "key",
      "description": "Same key as a query parameter."
    }
  },
  "security": [
    {},
    {
      "licenceKey": []
    },
    {
      "licenceQuery": []
    }
  ],
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "identify_photo",
      "name": "Identify an object from a photo",
      "description": "POST /api/identify with the photo bytes (JPEG, PNG or WebP, up to 1.5 MB) as the body returns the top guesses for what the object is (one Workers AI vision call; the photo is never stored). Free: a few scans a day per visitor; Pro key: more.",
      "tags": [
        "object identification",
        "barcode lookup",
        "product facts",
        "image recognition",
        "wikipedia"
      ],
      "examples": [
        "POST /api/identify (image/jpeg body)"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "object_story",
      "name": "Cited story for an object",
      "description": "GET /api/story?q=<name>&kind=<optional kind> searches the cited sources and returns the object's story, or candidates to pick from when unsure; GET /api/story?title=<Wikipedia title>&bc=<optional barcode> returns the story for one title.",
      "tags": [
        "object identification",
        "barcode lookup",
        "product facts",
        "image recognition",
        "wikipedia"
      ],
      "examples": [
        "https://tellwren.cybermaxtools.com/api/story?q=moka%20pot",
        "https://tellwren.cybermaxtools.com/api/story?title=Rubik%27s%20Cube"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "barcode_lookup",
      "name": "Barcode to product facts",
      "description": "GET /api/barcode?bc=<EAN/UPC digits> returns the product name and facts from Open Food Facts, Open Beauty Facts or Open Products Facts (no AI).",
      "tags": [
        "object identification",
        "barcode lookup",
        "product facts",
        "image recognition",
        "wikipedia"
      ],
      "examples": [
        "https://tellwren.cybermaxtools.com/api/barcode?bc=3017620422003"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "additionalInterfaces": [
    {
      "url": "https://tellwren.cybermaxtools.com",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://tellwren.cybermax-tools.workers.dev",
      "transport": "HTTP+JSON"
    }
  ],
  "x-pricing": "https://tellwren.cybermaxtools.com/pricing.json"
}