Adler-32 checksum API

Computes the Adler-32 checksum (the one used inside zlib) over bytes, returning the combined value plus the internal a/b sums. Answers 'What is the Adler-32 of this data?', 'Verify a zlib Adler-32 checksum.'

Price$0.01per request

MethodPOST

Route/v1/encoding/adler32

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

adler32adler-32zlibchecksumrollingverifybytesencoding

API URLhttps://x402.hexl.dev/v1/encoding/adler32

Integration docs

Example request

{
  "value": "Wikipedia"
}

Example response

{
  "checksum": 300286872,
  "checksumHex": "0x11e60398",
  "a": 920,
  "b": 4582,
  "byteLength": 9,
  "interpretation": "Adler-32 of 9 bytes = 0x11e60398 (a=920, b=4582)."
}

Input schema

{
  "type": "object",
  "required": [
    "value"
  ],
  "properties": {
    "value": {
      "type": "string",
      "examples": [
        "Wikipedia"
      ]
    },
    "inputEncoding": {
      "type": "string",
      "examples": [
        "utf8",
        "hex",
        "base64"
      ]
    }
  }
}

Output schema

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