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API v2

API v2 launches with endpoints for sending domains, API keys, audiences, subscribers and suppressions. Credentials become API keys with scopes.

Updated Oct 15, 2025

NewREST APIAPI keysSending domainsAudiencesSuppressions

API keys replace credentials. A key has the full or sending scope, a sending key can be restricted to one sending domain, and you can manage keys through the API. API v1 stayed available while you migrated.

See the API reference.

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