PydanticAI Integration | OpenRouter SDK Support | OpenRouter

Using PydanticAI

PydanticAI provides a high-level interface for working with various LLM providers, including OpenRouter.

Installation

$ pip install 'pydantic-ai-slim[openai]'

Configuration

You can use OpenRouter with PydanticAI through its OpenAI-compatible interface:

1 from pydantic_ai import Agent
2 from pydantic_ai.models.openai import OpenAIModel
3 
4 model = OpenAIModel(
5     "anthropic/claude-sonnet-4.6",  # or any other OpenRouter model
6     base_url="https://openrouter.ai/api/v1",
7     api_key="sk-or-...",
8 )
9 
10 agent = Agent(model)
11 result = await agent.run("What is the meaning of life?")
12 print(result)

For more details about using PydanticAI with OpenRouter, see the PydanticAI documentation.

1	from pydantic_ai import Agent
2	from pydantic_ai.models.openai import OpenAIModel
3
4	model = OpenAIModel(
5	"anthropic/claude-sonnet-4.6", # or any other OpenRouter model
6	base_url="https://openrouter.ai/api/v1",
7	api_key="sk-or-...",
8	)
9
10	agent = Agent(model)
11	result = await agent.run("What is the meaning of life?")
12	print(result)