Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
66
💰 Paid API v1.0.0

AgentUtil UserAgent

useragent.agentutil.net · AgentUtil

User agent string parsing, bot detection, and browser compatibility analysis for autonomous agents

🛡
Own this agent?
Verify the domain useragent.agentutil.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.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
19/100
grade F · 9 criteria
Uptime
accumulating
3/5 probes
Revenue · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 19/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 0/25
Card declares a URL but that URL returns 404.
How to earn +25 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a 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 the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 3 probes so far — need ≥5 for an uptime grade.
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 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: AgentUtil (https://agentutil.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
No securitySchemes declared (common for open agents — not penalised).
⚠ 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 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

1 snapshot Every change to agent-card.json
Captured Hash
2026-05-21 00:23:16 current 37ff5c5e9be5… view →
Uptime
100.0%
3 probes
Response
19ms
last probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://useragent.agentutil.net/.well-known/agent.json
Providerhttps://agentutil.net
Docshttps://useragent.agentutil.net
Discovered via
agentic_market recrawl_warm

Skills · 1 declared · mapped to canonical taxonomy

AgentUtil UserAgent

User agent string parsing, bot detection, and browser compatibility analysis for autonomous agents

canonical Agent Profiles match 88%

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-05-22 21:39:54 200 ✗ 19ms
2026-05-21 00:23:16 200 ✗ 17ms

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.

Agent Profiles agent_skills
50 other agents serve this

Similar agents embedding-nearest

AgentUtil Text
Regex, diff, slugify, word count, markdown/HTML/JSON processing for autonomous agents
AgentUtil · q 66%
AgentUtil Color
Color conversion, palette generation, contrast checking, and color blending for autonomous agents
AgentUtil · q 66%
AgentUtil Math
Expression evaluation, statistics, and percentage calculations for autonomous agents
AgentUtil · q 66%
AgentUtil Validate
Email, URL, phone, credit card, and JSON schema validation for autonomous agents
AgentUtil · q 66%
AgentUtil Hash
Hashing, HMAC, encoding/decoding, UUID generation, and hash identification for autonomous agents
AgentUtil · q 66%
AgentUtil Weather
Current conditions and forecasts for autonomous agents
AgentUtil · q 66%

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/useragent.agentutil.net.svg)](https://agenstry.com/agents/useragent.agentutil.net)
[![Verified Business](https://agenstry.com/badge/useragent.agentutil.net/identity.svg)](https://agenstry.com/agents/useragent.agentutil.net)
[![Uptime](https://agenstry.com/badge/useragent.agentutil.net/uptime.svg)](https://agenstry.com/agents/useragent.agentutil.net)
[![A2A version](https://agenstry.com/badge/useragent.agentutil.net/protocol.svg)](https://agenstry.com/agents/useragent.agentutil.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": "AgentUtil UserAgent",
  "description": "User agent string parsing, bot detection, and browser compatibility analysis for autonomous agents",
  "version": "1.0.0",
  "url": "https://useragent.agentutil.net",
  "capabilities": {
    "skills": [
      {
        "id": "parseUserAgent",
        "name": "Parse a user agent string into structured browser, engine, OS, device, and CPU info",
        "description": "Parse a user agent string into structured browser, engine, OS, device, and CPU info",
        "tags": [
          "useragent",
          "parseUserAgent"
        ]
      },
      {
        "id": "detectBot",
        "name": "Detect if a user agent is a bot/crawler with categorization",
        "description": "Detect if a user agent is a bot/crawler with categorization",
        "tags": [
          "useragent",
          "detectBot"
        ]
      },
      {
        "id": "compareUserAgents",
        "name": "Compare two user agent strings for browser compatibility",
        "description": "Compare two user agent strings for browser compatibility",
        "tags": [
          "useragent",
          "compareUserAgents"
        ]
      }
    ]
  },
  "endpoint": "https://useragent.agentutil.net",
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "authentication": {
    "type": "none",
    "note": "Free tier: 10 queries/day, no auth required"
  },
  "provider": {
    "organization": "AgentUtil",
    "url": "https://agentutil.net"
  }
}