> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mcp-use.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenAI

> Use mcp-use tools, resources, and prompts directly with the OpenAI SDK

# Using mcp-use with OpenAI

The OpenAI adapter allows you to seamlessly integrate tools, resources, and prompts from any MCP server with the OpenAI Python SDK. This enables you to use `mcp-use` as a comprehensive tool provider for your OpenAI-powered agents.

## How it Works

The `OpenAIMCPAdapter` converts not only tools but also resources and prompts from your active MCP servers into a format compatible with OpenAI's tool-calling feature. It maps each of these MCP constructs to a callable function that the OpenAI model can request.

* **Tools** are converted directly to OpenAI functions.
* **Resources** are converted into functions that take no arguments and read the resource's content.
* **Prompts** are converted into functions that accept the prompt's arguments.

The adapter maintains a mapping of these generated functions to their actual execution logic, allowing you to easily call them when requested by the model.

## Step-by-Step Guide

Here's how to use the adapter to provide MCP tools, resources, and prompts to an OpenAI Chat Completion.

<Note>
  Before starting, install the OpenAI SDK:

  ```bash theme={null}
  uv pip install openai
  ```
</Note>

<Steps>
  <Step name="Initialize MCPClient">
    First, set up your `MCPClient` with the desired MCP servers. This part of the process is the same as any other `mcp-use` application.

    ```python theme={null}
    from mcp_use import MCPClient

    config = {
        "mcpServers": {
            "airbnb": {"command": "npx", "args": ["-y", "@openbnb/mcp-server-airbnb", "--ignore-robots-txt"]},
        }
    }

    client = MCPClient(config=config)
    ```
  </Step>

  <Step name="Create the OpenAI Adapter">
    Next, instantiate the `OpenAIMCPAdapter`. This adapter will be responsible for converting MCP constructs into a format OpenAI can understand.

    ```python theme={null}
    from mcp_use.agents.adapters import OpenAIMCPAdapter

    # Creates the adapter for OpenAI's format
    adapter = OpenAIMCPAdapter()
    ```

    <Tip>
      You can pass a `disallowed_tools` list to the adapter's constructor to prevent specific tools, resources, or prompts from being exposed to the model.
    </Tip>
  </Step>

  <Step name="Generate OpenAI-Compatible Tools">
    Use the `create_all` method on the adapter to inspect all connected MCP servers and generate a list of tools, resources and prompts in the OpenAI function-calling format.

    ```python theme={null}
    # Convert tools from active connectors to the OpenAI's format
    # this will populates the list of tools, resources and prompts
    await adapter.create_all(client)

    # If you decided to create all tools (list concatenation)
    openai_tools = adapter.tools + adapter.resources + adapter.prompts
    ```

    This list will include functions generated from your MCP tools, resources, and prompts.

    <Tip>
      If you don't want to create all tools, you can call single functions. For example, if you only want to use tools and resources, you can do the following:

      ```python theme={null}
      await adapter.create_tools(client)
      await adapter.create_resources(client)

      # Then, you can decide which ones to use:
      openai_tools = adapter.tools + adapter.resources
      ```
    </Tip>
  </Step>

  <Step name="Make the Initial API Call">
    Now, you can use the generated `openai_tools` in a call to the OpenAI API. The model will use the descriptions of these tools to decide if it needs to call any of them to answer the user's query.

    ```python theme={null}
    from openai import OpenAI

    openai = OpenAI()
    messages = [
        {"role": "user", "content": "Please tell me the cheapest hotel for two people in Trapani."}
    ]

    response = openai.chat.completions.create(
        model="gpt-5.5",
        messages=messages,
        tools=openai_tools
    )

    response_message = response.choices[0].message
    messages.append(response_message)
    ```
  </Step>

  <Step name="Execute Tool Calls">
    If the model decides to use one or more tools, the `response_message` will contain `tool_calls`. You need to iterate through these calls, execute the corresponding functions, and append the results to your message history.

    The `OpenAIMCPAdapter` makes this easy by providing a `tool_executors` dictionary and a `parse_result` method.

    ```python theme={null}
    # Handle the tool calls (Tools, Resources, Prompts...)
    for tool_call in response_message.tool_calls:
        import json

        function_name = tool_call.function.name
        arguments = json.loads(tool_call.function.arguments)

        # 1. Use the adapter's map to get the correct executor
        executor = adapter.tool_executors.get(function_name)

        if not executor:
            content = f"Error: Tool '{function_name}' not found."
        else:
            try:
                # 2. Execute the tool using the retrieved function
                print(f"Executing tool: {function_name}({arguments})")
                tool_result = await executor(**arguments)

                # 3. Use the adapter's universal parser
                content = adapter.parse_result(tool_result)
            except Exception as e:
                content = f"Error executing tool: {e}"

        # 4. Append the result for this specific tool call
        messages.append(
            {
                "tool_call_id": tool_call.id,
                "role": "tool",
                "name": function_name,
                "content": content
            }
        )
    ```

    The `adapter.parse_result(tool_result)` method simplifies the process by correctly formatting the output, whether it's from a standard tool, a resource, or a prompt.
  </Step>

  <Step name="Get the Final Response">
    Finally, send the updated message history which now includes the tool call results back to the model. This allows the model to use the information gathered from the tools to formulate its final answer.

    ```python theme={null}
    second_response = openai.chat.completions.create(
        model="gpt-5.5",
        messages=messages,
        tools=openai_tools
    )

    final_message = second_response.choices[0].message
    print("\n--- Final response from the model ---")
    print(final_message.content)
    ```
  </Step>
</Steps>

## Complete Example

For reference, here is the complete, runnable code for integrating mcp-use with the OpenAI SDK.

```python theme={null}
import asyncio

from dotenv import load_dotenv
from openai import OpenAI

from mcp_use import MCPClient
from mcp_use.agents.adapters import OpenAIMCPAdapter

# This example demonstrates how to use our integration
# adapters to use MCP tools and convert to the right format.
# In particularly, this example uses the OpenAIMCPAdapter.

load_dotenv()


async def main():
    config = {
        "mcpServers": {
            "airbnb": {"command": "npx", "args": ["-y", "@openbnb/mcp-server-airbnb", "--ignore-robots-txt"]},
        }
    }

    try:
        client = MCPClient(config=config)

        # Creates the adapter for OpenAI's format
        adapter = OpenAIMCPAdapter()

        # Convert tools from active connectors to the OpenAI's format
        # this will populates the list of tools, resources and prompts
        await adapter.create_all(client)

        # If you don't want to create all tools, you can call single functions
        # await adapter.create_tools(client)
        # await adapter.create_resources(client)
        # await adapter.create_prompts(client)

        # If you decided to create all tools (list concatenation)
        openai_tools = adapter.tools + adapter.resources + adapter.prompts

        # Use tools with OpenAI's SDK (not agent in this case)
        openai = OpenAI()
        messages = [{"role": "user", "content": "Please tell me the cheapest hotel for two people in Trapani."}]
        response = openai.chat.completions.create(model="gpt-5.5", messages=messages, tools=openai_tools)

        response_message = response.choices[0].message
        messages.append(response_message)
        if not response_message.tool_calls:
            print("No tool call requested by the model")
            print(response_message.content)
            return

        # Handle the tool calls (Tools, Resources, Prompts...)
        for tool_call in response_message.tool_calls:
            import json

            function_name = tool_call.function.name
            arguments = json.loads(tool_call.function.arguments)

            # Use the adapter's map to get the correct executor
            executor = adapter.tool_executors.get(function_name)

            if not executor:
                print(f"Error: Unknown tool '{function_name}' requested by model.")
                content = f"Error: Tool '{function_name}' not found."
            else:
                try:
                    # Execute the tool using the retrieved function
                    print(f"Executing tool: {function_name}({arguments})")
                    tool_result = await executor(**arguments)

                    # Use the adapter's universal parser
                    content = adapter.parse_result(tool_result)
                except Exception as e:
                    print(f"An unexpected error occurred while executing tool {function_name}: {e}")
                    content = f"Error executing tool: {e}"

            # Append the result for this specific tool call
            messages.append({"tool_call_id": tool_call.id, "role": "tool", "name": function_name, "content": content})

        # Send the tool result back to the model
        second_response = openai.chat.completions.create(model="gpt-5.5", messages=messages, tools=openai_tools)
        final_message = second_response.choices[0].message
        print("\n--- Final response from the model ---")
        print(final_message.content)

    except Exception as e:
        print(f"Error: {e}")


if __name__ == "__main__":
    asyncio.run(main())
```