# API Reference

Shared developer reference for the News, Blogs & Forums APIs - one query language, endpoint family, and response format for all three products.

- [Query Syntax](news-blogs-forums-query-syntax) - boolean operators, phrases, proximity, wildcards.
- [Time Range & History](news-blogs-forums-time-range) - the search window and credit costs.
- [Endpoints & Authentication](news-blogs-forums-endpoints) - base URL, endpoints, and tokens.
- [Request Parameters](news-blogs-forums-parameters) - every parameter with defaults.
- [Response Format](news-blogs-forums-response-format) - the JSON envelope.
- [Pagination](news-blogs-forums-pagination) - follow the next URL.
- [Segmentation API](news-blogs-forums-segmentation) - aggregate counts instead of posts.
- [Errors, Rate Limits & Credits](news-blogs-forums-errors-limits) - what can go wrong and what it costs.