# Anthropic introduces Citations on the Claude API

> Anthropic announced a Citations feature for the Claude API, designed to associate answers with source passages from supplied documents. The feature supports source-aware interfaces, while document selection, extraction quality, and presentation context still require application-level validation and must not be mistaken for factual proof by users.

Canonical: https://hypler.com/ai-news/anthropic-api-citations-2025
Hypler publication: 2026-10-06
Original source date: 2025-01-23
Publisher: Anthropic
Article kind: source-briefing
Category: Developer tools
Tags: citations, RAG, provenance

## Engineering relevance

Citations can improve inspectability when source IDs and passages are retained. Hypler should avoid treating a displayed citation as evidence of factual correctness or complete retrieval coverage.

## Original source

- [Anthropic](https://claude.com/blog/introducing-citations-api)

## Image provenance

### Primary image

![Generated illustration of indexed source records connected to a reference document.](https://hypler.com/assets/news/retrieval-sources.webp)

generated illustration. Credit: Hypler / AI-generated editorial illustration. Hypler editorial asset; not vendor or event photography.
- [Image source](https://hypler.com/ai-news/media.md)

### Supporting image

![Generated illustration of indexed source records and a vector retrieval path.](https://hypler.com/assets/news/vector-index.webp)

generated illustration. Credit: Hypler / AI-generated editorial illustration. Hypler editorial asset; not vendor or event photography.
- [Image source](https://hypler.com/ai-news/media.md)

## Reading boundary

Historical source briefing, not current availability, compliance advice, partnership, or proof of Hypler deployment. Generated artwork is not event photography. Public reading grants no private access or execution authority.