Active Campaign

ActiveCampaign API provides comprehensive CRM and marketing automation with API key authentication. Supports 120 endpoints covering contacts, deals, automations, campaigns, email marketing, lists, tags, and sales pipeline management with RESTful JSON architecture.

Contact management includes syncing, segmentation, and custom field support. Campaign API enables creating and sending email campaigns programmatically. Automation API allows adding contacts to workflows and triggering automated sequences. Deals API manages sales pipeline with custom fields and stages. Lists and tags for contact organization.

Webhooks provide real-time notifications for events including contact updates, deal changes, and campaign activities. Integration with Postmark for email delivery. App Studio for building custom CX applications with visual interface. Pagination support with limit-offset, page-number, and cursor styles.

Official SDKs for PHP, Python, and Node.js with community libraries. Comprehensive API documentation with code samples and Postman collection. Rate limiting varies by endpoint. Paid account required with trial available. Production environment only. Ideal for marketing automation, CRM integrations, lead nurturing workflows, email campaign management, and sales process automation.