Integrate Logfire with Your Python Libraries

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Logfire

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Hello!

Logfire is designed to integrate smoothly with the Python ecosystem. That means we have custom integrations with many of the key tools, such as:

* FastAPI
* Flask
* Django
* Requests
* httpx
* SQLAlchemy

And many more that you can find listed on our integrations docs ( https://logfire.pydantic.dev/docs/integrations/#opentelemetry-integrations ).

For example, here's how to instrument a FastAPI app with Logfire:

Install the fastapi extra dependency: pip install 'logfire[fastapi]'

import logfire
from fastapi import FastAPI

app = FastAPI()
logfire.configure()
logfire.instrument_fastapi(app)

@app.get("/hello")
async def hello(name: str):
return {"message": f"hello {name}"}

if __name__ == "__main__":
import uvicorn
uvicorn.run(app)

Once you've done that, you'll start to see data such as FastAPI arguments in your Logfire UI:

FastAPI Example in Logfire UI ( https://logfire.pydantic.dev/docs/integrations/fastapi/ )

Since Pydantic Logfire is OpenTelemetry compatible, it can be used with any OpenTelemetry instrumentation package. You can find the list of all OpenTelemetry instrumentation packages here ( https://opentelemetry-python-contrib.readthedocs.io/en/latest/ ).

If you have any questions, feel free to get in touch ( https://logfire.pydantic.dev/docs/help/ ) or just hit reply to this email.

Best,
The Pydantic Team

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Pydantic Services, Inc. ・
https://pydantic.dev ・
github/pydantic ( https://github.com/pydantic )

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Accession

nse/pydantic/2026-10-26/5063

From

Pydantic Team · hello@pydantic.dev

Sent

26 October 2026 · 21:00 UTC