Newsletter - API

Keeping a mailing list in step with other systems by hand is slow and easy to get wrong. This plugin gives developers and businesses a set of REST endpoints to add, update or delete subscribers from outside WordPress. Requests are authenticated with API keys, and public access can be restricted, so only approved systems reach your newsletter data.

The API also covers more detailed subscriber workflows. You can work with private lists and profile fields, change a subscriber's status, and connect with autoresponder add-ons so that joining a list can start an email sequence. Documentation with guides and code examples is included to help during development. It suits sites that already run the Newsletter plugin and need it to talk to other tools.

Features

• Subscriber management endpoints: Add, update or delete subscribers through REST endpoints, so your mailing list can stay in sync with a CRM, store or other external platform.
• Server-to-server authentication: Access is protected with API keys, and public access can be restricted, so only authorized systems can interact with your newsletter data.
• Subscriber status control: Set subscriber states such as confirmed, bounced or unsubscribed through the API, which helps keep the mailing list accurate and compliant.
• Private lists and profile fields: Work with private lists and custom profile fields so subscriber data can be tailored and your audience segmented for targeted campaigns.
• Autoresponder add-on integration: Connect with autoresponder add-ons so that subscribers joining specific lists can automatically trigger email sequences.
• Single update or insert call: A single PUT method adds a new subscriber or updates an existing one, which reduces API calls and keeps integration logic simple.
• Error handling and validation: The API returns clear feedback on invalid email addresses or conflicting subscriber data, which helps limit inconsistencies in your list.
• Complete subscriber data removal: Permanently delete a subscriber together with all associated interaction statistics, an irreversible step that supports data privacy requirements.

Best for

• Developers connecting Newsletter to external systems
• Businesses syncing CRM or store data with mailing lists
• Sites that trigger autoresponder sequences from other tools