Salesforce

Salesforce offers multiple APIs for different use cases: REST API for web/mobile apps with lightweight JSON responses, SOAP API for enterprise integrations with formal contracts, Bulk API for processing large datasets asynchronously, and Streaming API for real-time data updates. OAuth 2.0 authentication is standard with connected apps.

The platform provides extensive documentation, sandbox environments, and SDKs for major languages. API limits vary by license tier (15,000-1,000,000+ calls per 24 hours). Ideal for CRM integrations, sales automation, and customer data management across enterprise systems.