# The full DeepSeek App experience, now via API

Search, files, links, safety, and voice. The capabilities behind the DeepSeek App are now available through the DeepSeek API.
Enable built-in features with a few parameters, or call standalone APIs such as OCR, ASR, and TTS. Build richer conversations or recreate the full DeepSeek App in your own application.

Try our open-source frontend demo, with support for importing DeepSeek conversation history.

🔗 Demo: <https://cdn.deepseek.com/chat-demo>

📦 Code: <https://github.com/deepseek-ai/chat-demo>

📖 Details: [https://api-docs.deepseek.com/guides/build\_a\_chatbot](https://api-docs.deepseek.com/guides/build_a_chatbot.md)

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## 🛠️ Built-in tools. Flexible APIs.

V4.1-Flash (`deepseek-flash`) now supports these capabilities across `Messages`, `Responses`, and `Chat Completions`, with tool calls and context assembly handled server-side:

🔹 Web Search: Search the web or images with citations in non-thinking mode.

🔹 Deep Thinking Search: Search and read pages throughout multi-step reasoning.

🔹 File Input: Parse PDFs, Office files, images, and more into conversation context.

🔹 URL Reading: Automatically fetch links in user messages to inform answers.

🔹 Safety Checks: Screen inputs and outputs, returning refusal indicators when risks are detected.

Enable search with `deepseek_web_search` and URL reading with `deepseek_read_url`. Public-facing apps must enable safety checks. Developers remain responsible for content moderation, applicable model registration, and AI-generated content labeling.

Search, Fetch, OCR, ASR, and TTS are also available as standalone APIs for custom workflows.

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## 💰 API pricing

Extended capabilities incur tool usage fees in addition to standard token charges.
See the tool pricing breakdown below.

![](https://api-docs.deepseek.com/img/app_api_261113_pricing_en.png)

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## 🌱 More possibilities, ready to build

The DeepSeek App is just one way to interact with AI. Its capabilities are now yours to call and combine freely. Spend less time rebuilding the basics and more time creating something new.

Build with DeepSeek. Let your imagination lead.