API ReferenceSystem

Health check

Liveness probe

GET /health Liveness probe. This endpoint returns a small JSON body when the service is up. Public endpoint. No API key required.

Responses

Service is healthy.

Content-Type: application/json

Field	Type	Required	Description
`status`	string	Yes
`service`	string	Yes

{
  "status": "healthy",
  "service": "zplserver"
}

curl -X GET "https://api.zpl.tools/health"

Render one label via GET (ZPL in the URL)

This GET variant carries URL-encoded ZPL as the final path segment

Diagnostics Reference

Every diagnostic code the ZPL engine can report, with severities, examples, and where each appears