https://github.com/typelevel/catbird

Birds and cats together
https://github.com/typelevel/catbird

Last synced: 8 months ago
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Birds and cats together

• Host: GitHub
• URL: https://github.com/typelevel/catbird
• Owner: typelevel
• License: apache-2.0
• Created: 2015-04-24T12:58:41.000Z (almost 11 years ago)
• Default Branch: main
• Last Pushed: 2025-07-05T20:09:56.000Z (9 months ago)
• Last Synced: 2025-07-21T18:51:13.471Z (8 months ago)
• Language: Scala
• Homepage: http://catbird.io
• Size: 811 KB
• Stars: 139
• Watchers: 10
• Forks: 25
• Open Issues: 19
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS

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README

          
# catbird

[![Build status](https://img.shields.io/github/workflow/status/typelevel/catbird/Continuous%20Integration.svg)](http://github.com/typelevel/catbird/actions)

[![Coverage status](https://img.shields.io/codecov/c/github/typelevel/catbird/master.svg)](https://codecov.io/github/typelevel/catbird)

[![Maven Central](https://img.shields.io/maven-central/v/org.typelevel.catbird/catbird-finagle_2.13.svg)](https://maven-badges.herokuapp.com/maven-central/org.typelevel.catbird/catbird-finagle_2.13)

This project provides [Cats](https://github.com/typelevel/cats) type class instances (and other useful

Cats-related stuff) for various [Twitter Open Source](https://twitter.com/twitteross) Scala

projects.

It currently includes the following:

* Type class instances for `Future`, `Var`, and `Try` (including `Monad` or `MonadError`, `Semigroup`, and equality)

* Category and profunctor instances for `Service`

* A `Rerunnable` type that wraps `Future` but provides semantics more like Cats Effect's `IO`

These are reasonably well-tested (thanks to [Discipline](https://github.com/typelevel/discipline)).

## Community

People are expected to follow the [Scala Code of Conduct][code-of-conduct] on GitHub and in any

other project channels.

## License

Licensed under the **[Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)** (the "License");

you may not use this software except in compliance with the License.

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

[code-of-conduct]: https://www.scala-lang.org/conduct.html