# DeepSeek App API: Full App Capabilities Now Available to Developers

[Read this article on Offloop](https://offloop.org/learn/deepseek-app-api-launch)

Yifei

Bring the full DeepSeek App experience to your applications with built-in web search, file input, URL reading, safety, and voice APIs, including OCR, ASR, and TTS.

English translation by Yifei. Original author: [DeepSeek Official](https://api-docs.deepseek.com/zh-cn/updates/#%E5%8F%91%E5%B8%83%E5%85%A8%E5%AE%B6%E6%A1%B6%E5%BA%94%E7%94%A8-api).

DeepSeek has officially opened the capabilities behind its App to developers through the DeepSeek App API. Web search, deep-thinking search, file input, URL reading, safety checks, and voice capabilities can now be integrated into third-party applications.

Developers can enable built-in functionality through API parameters or use standalone services such as Search, Fetch, OCR, ASR, and TTS.

## DeepSeek App Capabilities Are Now Available via API

In the DeepSeek App, including its web version, web search, file processing, URL reading, voice interaction, and safety mechanisms work together with model reasoning to deliver a complete conversational AI experience.

Previously, developers who wanted to build similar applications often needed to integrate multiple external tools and manage the connections between different services.

The DeepSeek App API simplifies this process by making these capabilities available through the existing DeepSeek API infrastructure.

By enabling the appropriate parameters, developers can access integrated search and file-processing features without manually orchestrating every tool call.

Voice capabilities and underlying tools are also available through standalone interfaces, allowing developers to use them independently or in combination.

Try DeepSeek App API Features in Offloop. Each account gets $200 in free trial credits once.

[Start now](https://offloop.org/login)

## DeepSeek App API Features

The DeepSeek-V4.1-Flash model (`deepseek-flash`) supports the following integrated capabilities through the Messages, Responses, and Chat Completions APIs.

### Web Search

In non-thinking mode, enabling the `deepseek_web_search` tool allows the model to automatically perform web or image searches based on user questions.

The model can use retrieved information to generate answers with citations.

### Deep-Thinking Search

In thinking mode, the same `deepseek_web_search` tool enables the model to search the web and read relevant links during multi-step reasoning.

This allows developers to build applications that combine reasoning with external information retrieval.

### File Input

The API supports file input, including PDFs, Office documents, and images.

Uploaded files can be processed through text extraction or mixed text-and-image parsing. The extracted content is then added to the conversation context for the model to analyze and reference.

### URL Reading

By enabling `deepseek_read_url`, developers can allow the model to recognize links in user messages, retrieve webpage content, and use that information when generating responses.

### Model Safety

The DeepSeek App API includes optional safety validation that reviews model inputs and outputs.

When the safety system identifies potentially unsafe content, it returns a refusal indicator.

Developers offering public-facing applications are instructed to enable safety validation and comply with applicable content moderation, AI registration, and AI-generated content labeling requirements.

## Standalone APIs for Search, Fetch, OCR, ASR, and TTS

Beyond integrated conversational features, DeepSeek provides standalone APIs that developers can incorporate into their own workflows.

* **Search:** Retrieve relevant web search results.
* **Fetch:** Retrieve webpage content from URLs.
* **OCR:** Recognize and extract text from images and documents.
* **ASR:** Convert spoken audio into text.
* **TTS:** Generate spoken audio from text.

These capabilities can be called independently or combined to create more advanced AI workflows.

## Recreate the DeepSeek App with an Open-Source Demo

To demonstrate the newly available API capabilities, DeepSeek has released an open-source frontend demo.

The demo shows how developers can build a conversational interface with functionality similar to the official DeepSeek App.

It also supports importing DeepSeek conversation history, allowing users to bring previous conversations into the demo.

[Try the Demo](https://cdn.deepseek.com/chat-demo)

[View the Source Code](https://github.com/deepseek-ai/chat-demo)

## DeepSeek App API Pricing

Developers using the DeepSeek App API are charged for model token usage and applicable tool invocations.

Tool-based capabilities, including search, webpage retrieval, file processing, and voice services, may incur additional usage fees.

Pricing depends on the specific service and billing unit. Developers should consult the [official DeepSeek API pricing documentation](https://api-docs.deepseek.com/quick_start/pricing/) for the applicable rates.

DeepSeek Tool API Pricing at Launch

| Tool   | Price (USD)                                                                                         |
| ------ | --------------------------------------------------------------------------------------------------- |
| Search | $0.75 per 1,000 requests                                                                            |
| Fetch  | $0.75 per 1,000 requests                                                                            |
| OCR    | $0.225 per 1,000 pages                                                                              |
| ASR    | $0.058 per hour; Regular price $0.116 per hour. Limited-time 50% discount.                          |
| TTS    | $0.225 per 10,000 characters; Regular price $0.45 per 10,000 characters. Limited-time 50% discount. |

![DeepSeek’s launch pricing chart for Search, Fetch, OCR, ASR, and TTS, including the limited-time 50% discounts on ASR and TTS.](https://offloop.org/editorial/learn/deepseek-app-api-launch/tool-api-pricing.png)

DeepSeek’s official Tool API pricing graphic

## Build with the DeepSeek App API

The DeepSeek App is one way to interact with AI, but its underlying capabilities are now accessible to developers.

With integrated conversational tools and standalone APIs, developers can create applications that support search, document analysis, voice interaction, and other AI-powered experiences without rebuilding every underlying component.

**Build with DeepSeek. Let your imagination lead.**

## Sources

* [\[1\] DeepSeek official announcement](https://api-docs.deepseek.com/zh-cn/updates/#%E5%8F%91%E5%B8%83%E5%85%A8%E5%AE%B6%E6%A1%B6%E5%BA%94%E7%94%A8-api)
* [\[2\] DeepSeek Official on X](https://x.com/deepseek_ai/status/2121247896918253875)
* [\[3\] DeepSeek Official on X, follow-up](https://x.com/deepseek_ai/status/2121247899699036516)
* [\[4\] DeepSeek Chat Demo](https://cdn.deepseek.com/chat-demo)
* [\[5\] DeepSeek Chat Demo source code](https://github.com/deepseek-ai/chat-demo)

November 13, 2026