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HMAC-SHA256 / HMAC-SHA512 Webhook Signature Generator

Computes keyed-hash message authentication codes (HMAC-SHA256 and HMAC-SHA512) for API webhook signing and verification.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/dev-hmac-generator?message=order_id=12345&secret=whsec_test_key&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"dev-hmac-generator"}

Parameters

Example response (live, compact)

{
  "apiId": "dev-hmac-generator",
  "data_freshness": "live",
  "data": {
    "message": "order_id=12345",
    "hmac_sha256_hex": "face41072e605d67a5c986a74749b2e12ad3fc2fde194544fb3e310ffeb6f6cd",
    "hmac_sha256_base64": "+s5BBy5gXWelyYanR0my4SrT/C/eGUVE+z4xD/629s0=",
    "hmac_sha512_hex": "fb7d7a71ae3278dc6dbfc93587b3f5508e93d0bbdd7613ef21518a75d6982e049811bad96f18d9021ac50d56ac0dc2eea37cbf3c11f4b5373bfebb919c9310fa"
  },
  "source": "100% Platform Node:Crypto HMAC Engine",
  "license": "100% Platform Owned Compute"
}

Source & license