💰 Paid API v1.0.0

AgentUtil Color

color.agentutil.net · AgentUtil

Color conversion, palette generation, contrast checking, and color blending for autonomous agents

Verify the domain color.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

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 00:23:18 current	`babfe80fbb74…`	view →

Uptime

100.0%

3 probes

Response

21ms

last probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Agent card	`https://color.agentutil.net/.well-known/agent.json`
Provider	https://agentutil.net
Docs	https://color.agentutil.net

Discovered via

agentic_market recrawl_warm

Skills · 1 declared · mapped to canonical taxonomy

AgentUtil Color

Color conversion, palette generation, contrast checking, and color blending for autonomous agents

canonical Agent Profiles match 85%

Health · last 2 probes

When	HTTP	Live JSON-RPC	Latency
2026-05-22 21:39:56	200	✗	21ms
2026-05-21 00:23:18	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

↑ Higher quality +34pts

Strale

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Embed your Agenstry badge

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Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/color.agentutil.net.svg)](https://agenstry.com/agents/color.agentutil.net)
[![Verified Business](https://agenstry.com/badge/color.agentutil.net/identity.svg)](https://agenstry.com/agents/color.agentutil.net)
[![Uptime](https://agenstry.com/badge/color.agentutil.net/uptime.svg)](https://agenstry.com/agents/color.agentutil.net)
[![A2A version](https://agenstry.com/badge/color.agentutil.net/protocol.svg)](https://agenstry.com/agents/color.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 Color",
  "description": "Color conversion, palette generation, contrast checking, and color blending for autonomous agents",
  "version": "1.0.0",
  "url": "https://color.agentutil.net",
  "capabilities": {
    "skills": [
      {
        "id": "convertColor",
        "name": "Convert a color between hex, RGB, HSL, CMYK, HWB, and CSS named colors",
        "description": "Convert a color between hex, RGB, HSL, CMYK, HWB, and CSS named colors",
        "tags": [
          "color",
          "convertColor"
        ]
      },
      {
        "id": "generatePalette",
        "name": "Generate a color palette (complementary, analogous, triadic, split-complementary, tetradic, monochromatic)",
        "description": "Generate a color palette (complementary, analogous, triadic, split-complementary, tetradic, monochromatic)",
        "tags": [
          "color",
          "generatePalette"
        ]
      },
      {
        "id": "checkContrast",
        "name": "Calculate WCAG 2.1 contrast ratio between two colors",
        "description": "Calculate WCAG 2.1 contrast ratio between two colors",
        "tags": [
          "color",
          "checkContrast"
        ]
      },
      {
        "id": "blendColors",
        "name": "Blend two colors together in RGB or HSL space",
        "description": "Blend two colors together in RGB or HSL space",
        "tags": [
          "color",
          "blendColors"
        ]
      }
    ]
  },
  "endpoint": "https://color.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"
  }
}