The DeepSeek Search API lets developers search the web with DeepSeek's own search engine, and its companion Fetch API turns a single web page into Markdown for an AI model to read.
In plain words
AI agents and RAG apps often need current information from the web. DeepSeek's Search API takes a query and returns a structured list of up to 50 matching pages from the company's in-house search engine. The Fetch API downloads one page and hands back its content as Markdown. Both use the same API key as DeepSeek's models. Each costs $0.75 per 1,000 successful requests, and failed calls, empty results and timeouts are not charged.
A quick example
Imagine a homework helper agent is asked about yesterday's football score. It sends the question to the Search API, picks the most relevant result, then uses the Fetch API to read that page as Markdown before writing its answer.
Where you'll meet it
- Giving AI agents up-to-date web results.
- Feeding live web pages into RAG apps.
Related
Sources
- DocsSearch & Fetch, DeepSeek API Docs · read 4 Nov 2026
- DocsChange Log, DeepSeek API Docs · read 18 Oct 2026
Checked by WhatIsAI against the sources above · 4 Nov 2026. Spotted an error? Report it.