Frontend Frameworks

treq

Python requests-like API built on top of Twisted's HTTP client.

Status
Generally available
Last checked
Aging · Sep 5, 2026
License
Open source
Pricing
Free tier · from $0

What it is

treq is a Python library that provides an easy-to-use interface for making HTTP requests, similar to the popular 'requests' library but built on top of Twisted. It allows developers to write asynchronous code using callbacks or Deferreds.

treq stands out as an asynchronous HTTP client built on top of Twisted, offering developers the flexibility to integrate with existing Twisted-based applications while providing a familiar API similar to 'requests'.

When it fits — and when it doesn’t

A good fit for

  • Python developers who need to make HTTP requests asynchronously within Twisted-based applications

  • Projects requiring integration of asynchronous HTTP calls with existing Twisted codebases

Look elsewhere if

  • Developers looking for a synchronous HTTP client library

  • Applications that do not require or benefit from non-blocking I/O operations

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Steep learning curve for non-Twisted developers

    treq heavily relies on Twisted's Deferreds and callbacks which are not common in other Python HTTP libraries.

  2. 02

    Limited documentation and community support

    The official documentation is sparse, and the community around treq is relatively small compared to more popular libraries like requests.

  3. 03

    Performance overhead due to Twisted's event loop

    Using Twisted's Deferreds can introduce additional latency and complexity in performance-critical applications.

  4. 04

    Compatibility issues with non-Twisted async libraries

    Integrating treq with other Python asynchronous frameworks like asyncio can be challenging due to Twisted's unique event loop model.

What it does well

  • Asynchronous HTTP requests using Twisted's Deferreds

  • Support for callbacks and Deferreds in request handling

  • Simplified API similar to the 'requests' library

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up treq

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →