seed-malformed

• Status: 422 Unprocessable Entity
• Route: POST /api/v1/generate-events
• Description: seed is malformed: expected 1 to 64 of a-z, 0-9, and -
• Details: value, the seed as the request gave it.

Why It Happens#

The seed has a character other than a to z, 0 to 9, and -, such as an uppercase letter, a space, or an underscore, or it is empty, or longer than 64 characters. SynthEvents uses a seed exactly as given, so it does not turn DDD into ddd for you.

How to Fix It#

Use 1 to 64 characters of a to z, 0 to 9, and -, such as ddd-workshop-2026 instead of DDD Workshop 2026.

Example#

For the seed DDD Workshop 2026, SynthEvents answers:

{
  "type": "error",
  "data": {
    "code": "https://docs.synthevents.io/errors/seed-malformed",
    "description": "seed is malformed: expected 1 to 64 of a-z, 0-9, and -",
    "details": {
      "value": "DDD Workshop 2026"
    }
  }
}