Seeded identicon grid API

Generates a GitHub-style NxN horizontally-symmetric boolean identicon grid plus an HSL color from a seed (MD5-driven). The value-add: stable, deterministic avatar data for any string — render the boolean grid as a blocky avatar. Answers 'Generate an identicon for this seed', 'How do I make a deterministic avatar grid from a string?'.

Price$0.02per request

MethodPOST

Route/v1/generate/identicon

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

identiconavatargridsymmetricdeterministicseedvisualgenerate

API URLhttps://x402.hexl.dev/v1/generate/identicon

Integration docs

Example request

{
  "seed": "abc",
  "size": 5
}

Example response

{
  "grid": [
    [
      false,
      false,
      false,
      false,
      false
    ],
    [
      false,
      true,
      false,
      true,
      false
    ],
    [
      false,
      true,
      true,
      true,
      false
    ],
    [
      false,
      false,
      false,
      false,
      false
    ],
    [
      false,
      false,
      false,
      false,
      false
    ]
  ],
  "size": 5,
  "color": "hsl(203, 65%, 50%)",
  "hue": 203,
  "filledCells": 5,
  "symmetric": "horizontal",
  "seed": "abc",
  "deterministic": true,
  "interpretation": "5x5 symmetric identicon (color hsl(203, 65%, 50%)); render as an avatar — stable per seed."
}

Input schema

{
  "type": "object",
  "required": [
    "seed"
  ],
  "properties": {
    "seed": {
      "type": [
        "string",
        "number"
      ],
      "examples": [
        "abc"
      ]
    },
    "size": {
      "type": "integer",
      "enum": [
        5,
        6,
        7,
        8
      ],
      "examples": [
        5
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}