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📊 Intel view 📋 Audit JSON 🔄 Changelog
71
A2A v1.0.0

KtoZvonil

ktozvonil.net · KtoZvonil

Ukrainian caller-reputation database: who is calling from a phone number, complaints and reviews.

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🛡
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Verify the domain ktozvonil.net 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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🔔 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
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://ktozvonil.net/.well-known/agent-card.json and the next probe clears this panel.
Field What we saw What we stored
capabilities Input should be a valid dictionary or instance of Capabilities dropped — this field was not indexed
Trust score
42/100
grade D · 9 criteria
Uptime
100.0%
23 direct probes · 30d
~56 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 42/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
partial Valid AgentCard 9/10
AgentCard did not read cleanly: 1 field we could not read. Scored on what we could read, not on a card that arrived as published — the card findings name every affected field and what we did with it.
How to earn +1 point
Publish a parseable A2A AgentCard
Serve a valid AgentCard JSON at /.well-known/agent-card.json. The A2A 1.0 schema is the reference; we accept the v0.x backwards-compatible variant too.
Docs →
fail Live JSON-RPC 3/25
Endpoint currently returns 5xx, may be transient.
How to earn +22 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 →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` 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).
pass Uptime track record 15/15
23/23 probes succeeded (100% uptime).
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 →
partial Verified Identity 5/10
Provider declared: KtoZvonil (https://ktozvonil.net). 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 1d
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

1 snapshot Every change to agent-card.json
Captured Hash
2026-08-18 01:49:40 current 40b2033e38fd… view →
Uptime
100.0%
23 direct probes · 30d
Response
60ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://ktozvonil.net/.well-known/agent-card.json
Providerhttps://ktozvonil.net
Docshttps://ktozvonil.net/llms-full.txt
About this provider off-card enrichment
SSL certificate
Google Trust Services
expires 2026-12-01
Discovered via
mcp_registry recrawl_hot

Skills · 1 declared · mapped to canonical taxonomy

check-phone-reputation

Check a phone number's reputation on KtoZvonil — who is calling, complaint count and user reviews.

canonical Barbershop Appointments match 82%

Health · last 23 probes

When HTTP Live JSON-RPC Latency
2026-09-14 02:31:28 200 ✗ 60ms
2026-09-12 02:53:47 200 — 197ms
2026-09-10 02:08:25 200 ✗ 64ms
2026-09-08 10:50:47 200 — 213ms
2026-09-06 10:11:46 200 — 196ms
2026-09-04 06:20:24 200 — 185ms
2026-09-02 06:03:00 200 — 188ms
2026-08-31 23:44:59 200 — 190ms
2026-08-30 16:58:22 200 — 190ms
2026-08-29 00:13:47 200 — 208ms

Cheaper or better alternatives per-skill

↑ 1 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.

22 other agents serve this

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

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": "KtoZvonil",
  "version": "1.0.0",
  "description": "Ukrainian caller-reputation database: who is calling from a phone number, complaints and reviews.",
  "url": "https://ktozvonil.net",
  "provider": {
    "organization": "KtoZvonil",
    "url": "https://ktozvonil.net"
  },
  "documentationUrl": "https://ktozvonil.net/llms-full.txt",
  "supportedInterfaces": [
    {
      "url": "https://ktozvonil.net/mcp",
      "serviceUrl": "https://ktozvonil.net/mcp",
      "transportProtocol": "streamable-http"
    }
  ],
  "capabilities": [
    {
      "id": "read-lookup",
      "name": "Read-only lookup",
      "description": "Look up and read KtoZvonil data (no writes)."
    }
  ],
  "skills": [
    {
      "id": "check-phone-reputation",
      "name": "check-phone-reputation",
      "description": "Check a phone number's reputation on KtoZvonil \u2014 who is calling, complaint count and user reviews."
    }
  ]
}