curl -X GET "https://example.com/v1/email-domains/check-domain?domain=string"{ "domain": "string", "in_use": true, "existing_mx": [ "string" ], "suggested_domain": "string"}Activate Provider
Switch which saved provider is active for ``layer``. 404 when that provider has no saved config.
Create Call
Place an outbound AI voice call. The call is placed asynchronously — this returns as soon as the call is queued, not when it completes. Poll GET /v1/calls/{call_id} or configure a webhook to get the final status and transcript. Requires recipient_consent=true on the request body; Hail does not verify lawful basis to contact the recipient, the caller warrants it.