使用 Anthropic API

为了满足大家对 Anthropic API 生态的使用需求，我们的 API 新增了对 Anthropic API 格式的支持，其 base_url 为 https://api.deepseek.com/anthropic。

通过简单的配置，即可将 DeepSeek 的能力，接入到 Anthropic API 生态中。

将 DeepSeek 模型接入 Claude Code

通过 Anthropic API 调用 DeepSeek 模型

安装 Anthropic SDK

pip install anthropic

配置环境变量

export ANTHROPIC_BASE_URL=https://api.deepseek.com/anthropic
export ANTHROPIC_API_KEY=${YOUR_API_KEY}

调用 API

import anthropic

client = anthropic.Anthropic()

message = client.messages.create(
    model="deepseek-v4-pro",
    max_tokens=1000,
    system="You are a helpful assistant.",
    messages=[
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "Hi, how are you?"
                }
            ]
        }
    ]
)
print(message.content)

注意：当您给 DeepSeek 的 Anthropic API 传入不支持的模型名时，API 后端会自动将其映射到 deepseek-v4-flash 模型。

Anthropic 模型映射

您在使用 Anthropic API 时，我们会对您传入的 claude 模型名进行映射：

claude-opus 开头的模型，会映射到 deepseek-v4-pro
claude-haiku、claude-sonnet 开头的模型，会映射到 deepseek-v4-flash

通过这样的映射，您在使用新版 Claude Desktop APP 的 developer 模式时，可以绕过 APP 对模型名的限制，只需改动 base_url 和 api_key，即可在其中接入 DeepSeek 模型。

Anthropic API 兼容性细节

本小节罗列了 DeepSeek API 对 Anthropic API 的兼容性细节。Anthropic API 完整格式定义，请参考 Anthropic 官方 API 手册。

HTTP Header

Field	Support Status
anthropic-beta	Ignored
anthropic-version	Ignored
x-api-key	Fully Supported

Simple Fields

Field	Support Status
model	Use DeepSeek Model Instead
max_tokens	Fully Supported
container	Ignored
mcp_servers	Ignored
metadata	`user_id` is supported, others are ignored Please refer to Rate Limit & Isolation for more information about `user_id` parameter.
service_tier	Ignored
stop_sequences	Fully Supported
stream	Fully Supported
system	Fully Supported
temperature	Fully Supported (range [0.0 ~ 2.0])
thinking	Supported (`budget_tokens` is ignored)
output_config	Only `effort` is supported
top_k	Ignored
top_p	Fully Supported

Tool Fields

tools

Field	Support Status
name	Fully Supported
input_schema	Fully Supported
description	Fully Supported
cache_control	Ignored

tool_choice

Value	Support Status
none	Fully Supported
auto	Supported (`disable_parallel_tool_use` is ignored)
any	Supported (`disable_parallel_tool_use` is ignored)
tool	Supported (`disable_parallel_tool_use` is ignored)

Message Fields

Field	Variant	Sub-Field	Support Status
content	string		Fully Supported
	array, type="text"	text	Fully Supported
		cache_control	Ignored
		citations	Ignored
	array, type="image"		Not Supported
	array, type = "document"		Not Supported
	array, type = "search_result"		Not Supported
	array, type = "thinking"		Supported
	array, type="redacted_thinking"		Not Supported
	array, type = "tool_use"	id	Fully Supported
		input	Fully Supported
		name	Fully Supported
		cache_control	Ignored
	array, type = "tool_result"	tool_use_id	Fully Supported
		content	Fully Supported
		cache_control	Ignored
		is_error	Ignored
	array, type = "server_tool_use"		Supported
	array, type = "web_search_tool_result"		Supported
	array, type = "code_execution_tool_result"		Not Supported
	array, type = "mcp_tool_use"		Not Supported
	array, type = "mcp_tool_result"		Not Supported
	array, type = "container_upload"		Not Supported

使用 Anthropic API

将 DeepSeek 模型接入 Claude Code​

通过 Anthropic API 调用 DeepSeek 模型​

Anthropic 模型映射​

Anthropic API 兼容性细节​

HTTP Header​

Simple Fields​

Tool Fields​

tools​

tool_choice​

Message Fields​