Create /contacts

API key (Bearer token) created in Setup → API & MCP.

Linked client UUIDs. At least one is required on create. On update, replaces the full linked-client list when sent. The first UUID is stored as the primary legacy client link.

Custom field values by slug.

Email address.

First name.

Whether this person is the primary contact for the linked client(s).

Last name.

Phone number.

Job title / position.

Fields enabled for this documentation instance (projection enabled: feature, option, subdomain, closures) plus account-level form field visibility. Role- and user-level field overrides are not applied here, so an API key whose staff user has such overrides may receive fewer fields. A disabled field is omitted from the response object entirely; a present key with a null value means the record simply has no value.