API integration Q&A and canonical starting points

[denial123789]

A practical index for the first questions when integrating SandBase:

• First API call: follow the Getting Started guide.
• OpenAI-compatible clients: see the API reference.
• Models and capabilities: browse the Models & APIs store.
• Agent workflows: start with the Agents guide.
• Documentation corrections or missing examples: open an issue with the exact endpoint, request, and response.

Use this thread for questions that can benefit other developers. Please omit API keys and other secrets; redact sensitive request data before posting.