DeepSeek has opened up its proprietary search engine via two interfaces: Search returns structured search results per query, while Fetch converts a single webpage into Markdown; calls initiated through DeepSeek Harness, Claude Code, and Codex server-side tools are currently free, with billing starting from 10-31.
Confidence: High (80) · Event time 2026-10-16
Reasoning
- 10-17 launched (recent development, not within the past 24 hours, 10-27 already collected); listed again this period because billing begins on 2026-10-31 16:00 UTC (Beijing time 11 1 at 0), leaving only about 3 days.
- Official pricing: 0.75 USD per 1,000 calls per endpoint, sharing the same Key as the model API.
- Search supports query syntax such as site:, -site:, lang:, after: / before:, with each result including a rerank_score and authority rating ranging from 0 to 3.
Usage
- POST https://api.deepseek.com/v1/tools/search，请求体如 {"query": "…", "count": 5, "need_content": true}, where count ranges from 1 to 50.
- POST https://api.deepseek.com/v1/tools/fetch，请求体 {"url": "…"}; include Authorization: Bearer \u003cAPI Key\u003e and Content-Type: application/json in the request headers.
- If you frequently perform web searches within Harness / Claude Code / Codex, check your call volume before billing begins.
Risks
- The official statement claims the index covers hundreds of billions of web pages and filters out SEO spam and low-quality AIGC, but no verifiable search quality evaluation has been provided.
- Fetch is subject to target website availability and access policies, so not all content may be retrievable.
Open · DeepSeek API Documentation · News 2026/10/17 · DeepSeek API Documentation · Search & Fetch Guide