Learn how automation tools connect with external services using APIs.
An API call sends a request to a service and receives a response. Automation workflows use APIs to read records, create tasks, send messages, and update systems.
Headers describe the request and often include authorization. JSON payloads carry structured data such as names, email addresses, IDs, and message text.
APIs can fail because of bad data, expired access, rate limits, or service downtime. A reliable workflow plans for these failures.
Choose one API action, such as creating a CRM lead. Define the method, endpoint purpose, required fields, possible errors, and retry rule.