> ## Documentation Index
> Fetch the complete documentation index at: https://portkey-docs-add-third-party-integration-issues-fixes.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenRouter

Portkey provides a robust and secure gateway to facilitate the integration of various Large Language Models (LLMs) into your applications, including [OpenRouter](https://openrouter.ai).

With Portkey, you can take advantage of features like fast AI gateway access, observability, prompt management, and more, all while ensuring the secure management of your LLM API keys through a [virtual key](/product/ai-gateway/virtual-keys) system.

<Note>
  Provider Slug. `openrouter`
</Note>

## Portkey SDK Integration with OpenRouter Models

Portkey provides a consistent API to interact with models from various providers. To integrate OpenRouter with Portkey:

### 1. Install the Portkey SDK

Add the Portkey SDK to your application to interact with OpenRouter AI's API through Portkey's gateway.

<Tabs>
  <Tab title="NodeJS">
    ```sh theme={null}
    npm install --save portkey-ai
    ```
  </Tab>

  <Tab title="Python">
    ```sh theme={null}
    pip install portkey-ai
    ```
  </Tab>
</Tabs>

### 2. Initialize Portkey with the Virtual Key

To use OpenRouter with Portkey, [get your API key from here](https://openrouter.ai/settings/keys), then add it to Portkey to create the virtual key.

<Tabs>
  <Tab title="NodeJS SDK">
    ```js theme={null}
    import Portkey from 'portkey-ai'

    const portkey = new Portkey({
        apiKey: "PORTKEY_API_KEY", // defaults to process.env["PORTKEY_API_KEY"]
        virtualKey: "VIRTUAL_KEY" // Your OpenRouter Virtual Key
    })
    ```
  </Tab>

  <Tab title="Python SDK">
    ```python theme={null}
    from portkey_ai import Portkey

    portkey = Portkey(
        api_key="PORTKEY_API_KEY",  # Replace with your Portkey API key
        virtual_key="VIRTUAL_KEY"   # Replace with your virtual key for Open Router
    )
    ```
  </Tab>
</Tabs>

### **3. Invoke Chat Completions with** OpenRouter

Use the Portkey instance to send requests to OpenRouter. You can also override the virtual key directly in the API call if needed.

<Tabs>
  <Tab title="NodeJS SDK">
    ```js theme={null}
    const chatCompletion = await portkey.chat.completions.create({
        messages: [{ role: 'user', content: 'Say this is a test' }],
        model: 'openai/gpt-4o-2024-08-06',
    });

    console.log(chatCompletion.choices);
    ```
  </Tab>

  <Tab title="Python SDK">
    ```python theme={null}
    completion = portkey.chat.completions.create(
        messages= [{ "role": 'user', "content": 'Say this is a test' }],
        model= 'mistral-medium'
    )

    print(completion)
    ```
  </Tab>
</Tabs>

### Open Router Tool Calling

Tool calling feature lets models trigger external tools based on conversation context. You define available functions, the model chooses when to use them, and your application executes them and returns results.

Portkey supports Open Router Tool Calling and makes it interoperable across multiple providers. With Portkey Prompts, you can templatize various your prompts & tool schemas as well.

<Card title="Open Router Tool Calling" href="https://openrouter.ai/docs/features/tool-calling" />

<Tabs>
  <Tab title="Node.js">
    ```javascript Get Weather Tool theme={null}
    let tools = [{
        type: "function",
        function: {
            name: "getWeather",
            description: "Get the current weather",
            parameters: {
                type: "object",
                properties: {
                    location: { type: "string", description: "City and state" },
                    unit: { type: "string", enum: ["celsius", "fahrenheit"] }
                },
                required: ["location"]
            }
        }
    }];

    let response = await portkey.chat.completions.create({
        model: "openai/gpt-4o",
        messages: [
            { role: "system", content: "You are a helpful assistant." },
            { role: "user", content: "What's the weather like in Delhi - respond in JSON" }
        ],
        tools,
        tool_choice: "auto",
    });

    console.log(response.choices[0].finish_reason);
    ```
  </Tab>

  <Tab title="Python">
    ```python Get Weather Tool theme={null}
    tools = [{
        "type": "function",
        "function": {
            "name": "getWeather",
            "description": "Get the current weather",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {"type": "string", "description": "City and state"},
                    "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}
                },
                "required": ["location"]
            }
        }
    }]

    response = portkey.chat.completions.create(
        model="openai/gpt-4o",
        messages=[
            {"role": "system", "content": "You are a helpful assistant."},
            {"role": "user", "content": "What's the weather like in Delhi - respond in JSON"}
        ],
        tools=tools,
        tool_choice="auto"
    )

    print(response.choices[0].finish_reason)
    ```
  </Tab>

  <Tab title="cURL">
    ```curl Get Weather Tool theme={null}
    curl -X POST "https://api.portkey.ai/v1/chat/completions" \
         -H "Content-Type: application/json" \
         -H "Authorization: Bearer YOUR_PORTKEY_API_KEY" \
         -d '{
           "model": "openai/gpt-4o",
           "messages": [
             {"role": "system", "content": "You are a helpful assistant."},
             {"role": "user", "content": "What'\''s the weather like in Delhi - respond in JSON"}
           ],
           "tools": [{
             "type": "function",
             "function": {
               "name": "getWeather",
               "description": "Get the current weather",
               "parameters": {
                 "type": "object",
                 "properties": {
                   "location": {"type": "string", "description": "City and state"},
                   "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}
                 },
                 "required": ["location"]
               }
             }
           }],
           "tool_choice": "auto"
         }'
    ```
  </Tab>
</Tabs>

The complete list of features supported in the SDK are available on the link below.

<Card title="SDK" href="/api-reference/portkey-sdk-client" />