Best CRM & Marketing APIs in 2026

CRM, marketing, sales, and service automation APIs.

Access and manage Salesforce CRM data, workflows, and automation.

Messaging, live chat, help desk, and customer data platform.

Automated messaging based on user behaviour and events.

Email campaigns, audiences, automations, and analytics.

Email, SMS, chat, and marketing automation platform.

Marketing email campaigns, templates, and contact management.

Help desk, ticketing, and customer service automation.

Ticketing, knowledge base, and customer support automation.

Manage Google Ads campaigns, bidding, and reporting.

Create and manage Facebook and Instagram ad campaigns.

Programmable cloud contact centre platform.