Tool Calls / Function Calling

Let the model call functions you define. The gateway handles format conversion between providers — define tools once in OpenAI format and it works everywhere.

Base URL & authentication

Base URL: https://api.openadapter.in

All requests need an Authorization: Bearer sk-cv-... header. Generate or copy your API key from the Dashboard → API Keys page.

Let the model call functions you define. The gateway handles format conversion between providers — define tools once in OpenAI format and it works everywhere.

curl https://api.openadapter.in/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-4.7",
    "messages": [{"role": "user", "content": "What is the weather in Tokyo?"}],
    "tools": [{
      "type": "function",
      "function": {
        "name": "get_weather",
        "description": "Get weather for a city",
        "parameters": {
          "type": "object",
          "properties": {
            "city": {"type": "string"},
            "unit": {"type": "string", "enum": ["celsius","fahrenheit"]}
          },
          "required": ["city"]
        }
      }
    }],
    "tool_choice": "auto"
  }'

tools = [
    {
        "type": "function",
        "function": {
            "name": "get_weather",
            "description": "Get weather for a city",
            "parameters": {
                "type": "object",
                "properties": {
                    "city": {"type": "string", "description": "City name"},
                    "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}
                },
                "required": ["city"]
            }
        }
    }
]

response = client.chat.completions.create(
    model="glm-4.7",
    messages=[{"role": "user", "content": "What's the weather in Tokyo?"}],
    tools=tools,
    tool_choice="auto"
)

# Check if model wants to call a tool
msg = response.choices[0].message
if msg.tool_calls:
    for call in msg.tool_calls:
        print(f"Call: {call.function.name}({call.function.arguments})")

const tools = [{
  type: 'function',
  function: {
    name: 'get_weather',
    description: 'Get weather for a city',
    parameters: {
      type: 'object',
      properties: {
        city: { type: 'string', description: 'City name' },
        unit: { type: 'string', enum: ['celsius', 'fahrenheit'] },
      },
      required: ['city'],
    },
  },
}];

const response = await client.chat.completions.create({
  model: 'glm-4.7',
  messages: [{ role: 'user', content: "What's the weather in Tokyo?" }],
  tools,
  tool_choice: 'auto',
});

const msg = response.choices[0].message;
if (msg.tool_calls) {
  for (const call of msg.tool_calls) {
    console.log(`Call: ${call.function.name}(${call.function.arguments})`);
  }
}