Do I need docs that support multiple API formats?

It depends on who your docs are for and how often the API format changes.

Usually, yes if:

• You have multiple user types: for example, developers, partners, internal teams, or non-technical users.
• Your API is exposed in more than one format:
  • REST + GraphQL
  • JSON + XML
  • HTTP + SDKs
  • OpenAPI + human-readable guides
• You want the docs to support different tasks:
  • Quick start
  • Reference
  • Authentication/setup
  • Examples/tutorials
• Different consumers need different levels of detail or different integration styles.

Usually, no if:

• There’s only one API format and one main audience.
• The format is standardized and easy enough that one good reference is enough.
• Supporting multiple formats would create too much maintenance overhead.

A good rule:

If “multiple API formats” means multiple ways to consume the same system, then docs should usually have:

1. One source of truth for the API contract
2. Multiple views or guides tailored to each format or audience

That avoids duplication while still serving different users.

Practical recommendation

Instead of making separate full docs for every format, use:

• One canonical reference
• Format-specific pages/examples
• Shared concepts pages where possible

If you want, I can help you decide based on your specific API setup.