Seeded value noise API

Samples smooth fractal value-noise at given coordinates with N octaves, seeded and normalized to [0,1] using quintic fade interpolation. The value-add: deterministic procedural noise for terrain/textures/animation, with correct lattice hashing and octave summation. Answers 'Sample noise at (x,y) deterministically', 'How do I get reproducible Perlin-style noise from a seed?'.

Price$0.02per request

MethodPOST

Route/v1/generate/value-noise

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

noiseperlinvalue-noiseproceduraloctavesdeterministicseedgenerate

API URLhttps://x402.hexl.dev/v1/generate/value-noise

Integration docs

Example request

{
  "seed": "abc",
  "x": 1.5,
  "y": 2.5,
  "octaves": 2
}

Example response

{
  "value": 0.48823974118568003,
  "x": 1.5,
  "y": 2.5,
  "octaves": 2,
  "range": "[0,1]",
  "seed": "abc",
  "deterministic": true,
  "interpretation": "Smooth value-noise sample at (1.5, 2.5); same seed+coords always yields 0.488240."
}

Input schema

{
  "type": "object",
  "required": [
    "seed",
    "x"
  ],
  "properties": {
    "seed": {
      "type": [
        "string",
        "number"
      ],
      "examples": [
        "abc"
      ]
    },
    "x": {
      "type": "number",
      "examples": [
        1.5
      ]
    },
    "y": {
      "type": "number",
      "examples": [
        2.5
      ]
    },
    "octaves": {
      "type": "integer",
      "minimum": 1,
      "maximum": 8,
      "examples": [
        2
      ]
    }
  }
}

Output schema

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