Preview segment membership

POST 
/segments/preview

Evaluates a rule set against a random sample of up to 1000 members and returns an extrapolated size estimate plus up to 10 sample members. Results are cached briefly per (type, rules).

Request

Responses

200

Estimated membership preview

400

Validation error

401

Unauthorized - Invalid or missing API key

429

Rate limit exceeded

Response Headers

Retry-After