iilib
API

DeepSeek API

DeepSeek API provides access to the current DeepSeek V4 models through OpenAI-compatible and Anthropic-compatible interfaces.

API documentationOfficial siteVerified Oct 3, 2026
Provider type
First Party
Provider
DeepSeek
Connected models
2
Product integrations
7
OpenAI compatible
Yes

Overview

The API supports chat completions, the OpenAI Responses format, tool calls, JSON output, thinking controls, and FIM completion. Its documented OpenAI-format base URL is api.deepseek.com.

API details

Base URL
https://api.deepseek.com
Authentication
Api Key
Styles
Rest, Sdk
Pricing model
Usage Based
Official SDKs
—

Capabilities

Chat completionsResponses APITool callsJSON outputThinking modesFIM completionAnthropic-compatible API

Token pricing varies by model and by peak versus off-peak time periods.

Models currently mapped to this API

This is the verified iilib subset, not the provider's complete model catalog.

Tools and agents integrating this API

Only integrations backed by explicit product or provider documentation are shown.

Provider