DeepSeek API Key on iPhone — Free BYOK Chat App

DeepSeek in Ensor at a glance

API	DeepSeek OpenAI-compatible Chat Completions API (https://api.deepseek.com)
Web search	Not enabled in Ensor yet
Image input	No
PDF input	No
Streaming	Yes
Models	Suggested models include deepseek-chat and deepseek-reasoner. You can type any model ID.

How to set up DeepSeek on iPhone

Create an API key in DeepSeek Platform.
Open Ensor, go to Contacts and tap an AI’s avatar, or create a new AI.
Set Provider to DeepSeek and paste your key into API Key.
Choose a model. Suggested models include deepseek-chat and deepseek-reasoner. You can type any model ID.
Tap Test Connection, save, and start chatting.

Good to know

Ensor does not enable a web search tool for DeepSeek yet.
Text chat only: image and PDF attachments are not sent to DeepSeek.
Requests go directly from your iPhone to DeepSeek. There is no Ensor server in between.

Use DeepSeek alongside other models

Every AI contact in Ensor has its own provider and key, so you can keep DeepSeek next to other models and even put them in the same group chat. Other providers:

Frequently asked questions

Is there an iPhone app for the DeepSeek API?

Ensor is a free iPhone app that works with your own DeepSeek API key. Add the key to an AI contact, pick deepseek-chat or deepseek-reasoner, and start chatting.

Is Ensor free to use with DeepSeek?

Yes. Ensor is free. Your DeepSeek account bills you for the API usage on your key.

Where is my DeepSeek API key stored?

In the iPhone Keychain, set to this device only. It is never stored in the app database, never exported and never sent anywhere except the provider’s API.

Use your DeepSeek API key on iPhone