Overview
To meet developers’ needs for leveraging the Anthropic API ecosystem, our API now supports accessing all models via the Anthropic API interface.
It supports 200+ LLMs, including 7 free models.
Quick Start
Install the Anthropic SDK
API Usage
Endpoint: https://aihubmix.com/v1/messages
curl https://aihubmix.com/v1/messages \
-H "Content-Type: application/json" \
-H "x-api-key: <AIHUBMIX_API_KEY>" \
-H "anthropic-version: 2023-06-01" \
-d '{
"model": "minimax-m2.1",
"max_tokens": 16000,
"thinking": {
"type": "enabled",
"budget_tokens": 10000
},
"messages": [
{
"role": "user",
"content": "Are there an infinite number of prime numbers such that n mod 4 == 3?"
}
]
}'
Compatibility Notes
Supported Parameters
When integrating via the Anthropic API, the following input parameters are supported:
| Parameter | Type | Required | Description |
|---|
model | string | Yes | Supported models can be found in the Model List |
messages | array of MessageParam | Yes | Input messages |
max_tokens | number | No | Maximum number of tokens to generate |
stream | boolean | No | Enable streaming responses |
system | string or array of TextBlockParam | Yes | System prompt |
temperature | number | No | Range: (0.0, 1.0]. Controls output randomness; recommended value is 1 |
top_p | number | No | Nucleus sampling parameter |
thinking | ThinkingConfigParam | No | Reasoning configuration |
Supported Message Types
| Type | Description |
|---|
type="text" | Text message |
type="tool_use" | Tool invocation |
type="tool_result" | Tool invocation result |
type="thinking" | Model reasoning output |
Usage Example
Using GPT-5.2 in Claude Code
Although any supported model can be used via AIHubMix, for the best experience we recommend high-capability models such as gpt-5.2 or glm-4.7.
Refer to the Claude Code installation guide: https://docs.aihubmix.com/cn/api/Claude-Code
2. Connect Claude Code to AIHubMix
Claude configuration file: .claude/settings.json
{
"env": {
"ANTHROPIC_API_KEY": "AIHUBMIX_API_KEY",
"ANTHROPIC_BASE_URL": "https://aihubmix.com",
"ANTHROPIC_DEFAULT_HAIKU_MODEL": "gpt-5.2",
"ANTHROPIC_DEFAULT_OPUS_MODEL": "gpt-5.2",
"ANTHROPIC_DEFAULT_SONNET_MODEL": "gpt-5.2",
"ANTHROPIC_MODEL": "gpt-5.2"
},
"includeCoAuthoredBy": false
}
AIHUBMIX_API_KEY with your actual AIHubMix API key.
The native Claude Code installer cannot read standard .env files. Do not place these settings in a .env file.
3. Start a Conversation
Navigate to your project directory and launch Claude Code:
$ cd /path/to/your-project
> claude
4. Verification
You can verify the connection by running the /status command in Claude Code:
> /status
API key: ANTHROPIC_API_KEY
Anthropic base URL: https://aihubmix.com
Model: gpt-5.2
