Readme

We offer you the following resources for our API documentation developer-focused resources.

In the Guides section, these resources are available:

• Quick start
• Security and authorization to access our APIs
• API test environment
• Overview of all our APIs
• Request and response contents for all the APIs
• API Examples
• JSON-to-EDI mapping
• Predefined fields and values for trying our APIs in sandbox
• Release notes
• Error messages
• FAQs (periodically updated)
• Troubleshooting

In the API Reference section, these resources are available:

• Overview of the APIs
• Downloadable Swagger/OpenAPI spec, such as Eligibility API – application in JSON format that generates our documentation for developers to view and use
• Resources for API testing/trying
  • Postman collection, such as for Eligibility – for use with the Postman application (not owned by Optum), this collection allows users to call and test our APIs
  • TryIt! interactive interface for real-time API testing, such as for Eligibility API
• Predefined fields and values for trying our APIs in sandbox