DeepSeek released a full suite of application APIs on Friday, opening the web search, file input, URL reading and voice features of the DeepSeek App to developers. The company said in its API change log that the capabilities are now available as parameters in existing API requests, with DeepSeek's servers handling the tool calls and assembling the results into the model's context.
The tools run on the deepseek-flash model and work across DeepSeek's Messages, Responses and Chat Completions APIs. Developers can either use the integrated chat features or call the individual tools on their own.
For search, DeepSeek offers two modes. With thinking disabled and the deepseek_web_search tool enabled, the model runs web or image searches and answers with citations. With thinking enabled, the model searches and reads links over multiple reasoning steps.
Key facts
- 01DeepSeek released its full suite of application APIs on Nov. 13, 2026.
- 02The deepseek-flash model supports the tools in the Messages, Responses and Chat Completions APIs.
- 03New capabilities include web search, URL reading, file input for PDFs, Office files and images, and a safety-check parameter.
- 04Standalone Search and Fetch, OCR, speech recognition and text-to-speech APIs are also available.
- 05DeepSeek released an open-source demo chat client that can import DeepSeek chat history.
A separate deepseek_read_url tool lets the model fetch links that appear in a user's message. File input covers PDFs, Office files and images, which DeepSeek parses into text or rich layout before adding them to the context.
DeepSeek also added a safety-check parameter that reviews input and output and returns a refusal marker when it detects risk. The change log says public-facing services remain responsible for content safety review, large model registration and AI labeling.
Alongside the integrated features, DeepSeek published standalone APIs for search and fetch, optical character recognition, automatic speech recognition and text-to-speech. The company first opened its in-house search API to developers on Oct. 17, alongside the DeepSeek-V4.1-Flash-1017 model update.
DeepSeek also released an open-source demo chat client that supports multi-turn conversations, voice input, spoken replies and imports of DeepSeek chat histories. The change log does not list new pricing for the tools and points developers to the company's Models and Pricing page.
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