81
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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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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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
40/100
grade D · 9 criteria
Uptime
100.0%
5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
D
Conformance score: 40/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾
click to collapse breakdown ▴
D
Conformance score: 40/100
D-grade: significant issues, auth-gated, partially broken, or stale.
pass
Valid AgentCard
10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail
Live JSON-RPC
0/25
DNS dead or connection refused.
How to earn +25 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.
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
5/5 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 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 recordedNothing 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 toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-08-18 01:49:40 current | 40b2033e38fd… |
view → |
Uptime
100.0%
5 direct probes · 30d
Response
231ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable
Endpoints
| Agent card | https://ktozvonil.net/.well-known/agent-card.json |
| Provider | https://ktozvonil.net |
| Docs | https://ktozvonil.net/llms-full.txt |
Discovered via
mcp_registry
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.
Health · last 5 probes
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.
Barbershop Appointments
personal
18 other agents serve this
Similar agents embedding-nearest
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.
Markdown / HTML snippets
[](https://agenstry.com/agents/ktozvonil.net) [](https://agenstry.com/agents/ktozvonil.net) [](https://agenstry.com/agents/ktozvonil.net) [](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.
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."
}
]
}