Contacts
Create a contact — or update them if the number already exists
Create a contact — or update them if the number already exists. The PHONE NUMBER is the key, not the id: it is also what decides whether it is the same person when they call. Fields you do not send are left alone, so a sync that only knows the number does not wipe the name. Answers 201 on create and 200 on update.
POST
Authentication
Authorizationstringheaderrequired
Your API key as a Bearer token.
Parameters
Idempotency-Keystringheader
Repeat a request safely: the same key returns the first response instead of creating a second row. Kept for 24 hours.
Request
Response
application/json
Success.
object
