Random colour

$0.003 per call · failed calls are never charged · no account or API key needed

One or more random colours in hex, RGB and HSL, optionally limited to pastel or dark tones. Use for placeholders, avatars and design ideas.

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Inputs

NameTypeDescription
countintegerHow many (1-50, default 1)
tonestringany (default), pastel or dark

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/random/color?count=3"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/random/color?count=3&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum, Monad, World Chain or Tempo) and retries.

Example result

{
  "colors": [
    {
      "hex": "#a7c7e7",
      "rgb": "rgb(167, 199, 231)",
      "hsl": "hsl(210, 60%, 78%)"
    }
  ]
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is random_color, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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