What’s in this section
Getting started
Make your first authenticated GraphQL request.
Authentication
Authenticate a system or a user with API keys or OAuth.
Sandbox
Test against an isolated sandbox tenant.
Playground
Explore the schema and run live queries.
Data model
Understand the core entities and how they relate.
Example requests
Copy common queries and mutations.
Error codes
Handle API errors and status codes.
Guides
Follow end-to-end integration guides.
MCP server
Use ION from an AI agent like OpenAI Codex, Claude, or Cursor.
API change policy
Understand how the API evolves and deprecates.
Changelog
See recent changes to the API.