I'm building internal API docs for engineering and need versioned references

Absolutely — I can help you design versioned API references for internal engineering docs.

A good versioned docs setup usually includes:

1) Versioned endpoint structure

Organize by API version, for example:

• /api/v1/...
• /api/v2/...

In docs:

• Version overview
• Breaking changes
• Deprecated endpoints
• Migration notes

2) Standard reference template for each endpoint

For each endpoint, include:

• Method + path
• Version
• Purpose
• Auth requirements
• Request parameters
• Request body schema
• Response schema
• Status codes
• Examples
• Errors
• Deprecation / replacement info

Example:

## GET /api/v1/users/{userId}
Version: v1
Description: Fetch a user profile by ID.

### Auth
Bearer token required.

### Path Parameters
| Name   | Type   | Required | Description |
|--------|------|----------|-------------|
| userId | string | yes | Unique user identifier |

### Responses
- 200 OK
- 404 Not Found
- 401 Unauthorized

3) Versioning guidance

Document:

• What counts as a breaking change
• How long old versions are supported
• Whether versions are in the URL, header, or query param
• Deprecation timeline and sunset policy

4) Recommended doc structure

Something like:

• Overview
• Authentication
• Versioning policy
• API v1
  • Users
  • Orders
  • Billing
• API v2
  • Users
  • Orders
• Changelog
• Deprecations
• Migration guides

5) Internal best practices

• Keep one canonical source of truth, ideally OpenAPI/Swagger
• Generate reference docs from schema when possible
• Include example requests/responses for each version
• Link deprecated endpoints to replacements
• Preserve old docs snapshots for support and auditing

If you want, I can also give you:

1. a Markdown template for versioned endpoint docs,
2. an OpenAPI example with versioned paths, or
3. a docs site structure for multiple API versions.