Overview - Classer

Base URL

https://api.classer.ai

Method	Endpoint	Description
POST	`/v1/classify`	Single-label classification
POST	`/v1/tag`	Multi-label classification
POST	`/v1/match`	Semantic similarity scoring
POST	`/v1/score`	Attribute scoring

All requests require a Bearer token in the Authorization header:

Authorization: Bearer your-api-key

All endpoints accept JSON with Content-Type: application/json.

All responses include:

Field	Type	Description
`latency_ms`	number	Processing time in milliseconds
`usage`	object	Token usage (optional)

{
  "prompt_tokens": 42,
  "completion_tokens": 1,
  "total_tokens": 43
}

{
  "detail": "Error message describing what went wrong"
}

Status	Description
`400`	Bad request — invalid parameters
`401`	Unauthorized — missing or invalid API key
`422`	Validation error — check request body
`429`	Rate limit exceeded
`500`	Internal server error