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📊 Intel view 📋 Audit JSON 🔄 Changelog
100
A2A live JSON-RPC A2A 0.3.0 v1.0.0

CarShake Agent

carshake.online

Car reliability ratings and safety scores. Compare used cars by model year, check crash-test data, and find the safest vehicle for your budget.

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🛡
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Verify the domain carshake.online 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
64/100
grade C · 9 criteria
Uptime
94.3%
35 probes
~197 ms response
Observed inflow · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
stable
2 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 64/100
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 (answers in ~197 ms).
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"` 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).
partial Uptime track record 14/15
33/35 probes succeeded (94% uptime).
How to earn +1 point
Stabilise uptime
We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.
Docs →
partial Skill declaration 6/10
Declares 2 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 →
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 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 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

2 snapshots drifted 1× Every change to agent-card.json
Captured Hash
2026-07-21 05:54:13 current a7357b34ef44… view →
2026-07-19 17:40:36 adc387e83c18… view →
Uptime
94.3%
35 probes
Response
60ms
last probe
Skills
2
declared
Streaming
—
SSE-capable

Try it

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

calling agent…

Endpoints

Agent cardhttps://carshake.online/.well-known/agent-card.json
Discovered via
mcp_registry recrawl_hot

Skills · 2 declared · mapped to canonical taxonomy

Compare Car Safety

Compare safety ratings, reliability scores, and crash-test results across car models and years.

canonical Parts and Components Lookup match 87%
carssafetycomparisonreviews
Check Reliability

Get detailed reliability ratings and common issues for a specific car model and year.

canonical Parts and Components Lookup match 88%
carsreliabilityreviews

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-08-09 09:59:52 200 ✓ 60ms
2026-08-08 18:37:28 200 ✓ 44ms
2026-08-08 08:50:01 200 ✓ 33ms
2026-08-07 09:17:19 200 ✓ 66ms
2026-08-07 09:08:51 200 ✓ 180ms
2026-08-06 06:29:13 200 ✓ 55ms
2026-08-05 06:48:03 200 ✓ 73ms
2026-08-05 02:29:32 200 ✓ 170ms
2026-08-04 05:14:03 200 ✓ 30ms
2026-08-03 21:37:44 200 ✓ 33ms

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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/carshake.online.svg)](https://agenstry.com/agents/carshake.online)
[![Verified Business](https://agenstry.com/badge/carshake.online/identity.svg)](https://agenstry.com/agents/carshake.online)
[![Uptime](https://agenstry.com/badge/carshake.online/uptime.svg)](https://agenstry.com/agents/carshake.online)
[![A2A version](https://agenstry.com/badge/carshake.online/protocol.svg)](https://agenstry.com/agents/carshake.online)

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": "CarShake Agent",
  "description": "Car reliability ratings and safety scores. Compare used cars by model year, check crash-test data, and find the safest vehicle for your budget.",
  "url": "https://carshake.online/api/a2a",
  "preferredTransport": "JSONRPC",
  "version": "1.0.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "compare_cars",
      "name": "Compare Car Safety",
      "description": "Compare safety ratings, reliability scores, and crash-test results across car models and years.",
      "tags": [
        "cars",
        "safety",
        "comparison",
        "reviews"
      ],
      "examples": [
        "Compare Toyota Camry vs Honda Accord",
        "Safest SUVs under $30k"
      ]
    },
    {
      "id": "check_reliability",
      "name": "Check Reliability",
      "description": "Get detailed reliability ratings and common issues for a specific car model and year.",
      "tags": [
        "cars",
        "reliability",
        "reviews"
      ],
      "examples": [
        "Is the 2023 Tesla Model 3 reliable?",
        "Common issues with Ford F-150"
      ]
    }
  ]
}