PyPI
dry-python/returns
Make your functions return something meaningful, typed, and safe!
BSD-2-ClauseSep 17, 2026 · metrics 2.10.0
All tags
Catalogue tag
#monad
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
29 records
Go
IBM/fp-go
Functional programming library for Go 1.24+, inspired by fp-ts. Uses generic type aliases for a clean, composable API. Provides Option, Either, Result, IO, IOResult, Reader, and ReaderIOResult monads, plus optics (Lens, Prism, Traversal) for immutable data manipulation. Supports Functor, Applicative, and Monad abstractions with do-notation-style
Apache-2.0Sep 10, 2026 · metrics 2.10.0
npm
btravstack/unthrown
Explicit errors as values for TypeScript — with a separate defect channel for the unexpected and qualification enforced at every boundary.
MITSep 25, 2026 · metrics 2.10.0
npm
jordanburke/functype
A Functional Library for TypeScript based on Scala
MITSep 18, 2026 · metrics 2.10.0
—
atnos-org/eff
Eff monad for cats - https://atnos-org.github.io/eff
MITOct 19, 2026 · metrics 2.10.0
—
hnaderi/edomata
Production ready event-driven automata for Scala, Scala.js and scala native
Apache-2.0Sep 13, 2026 · metrics 2.10.0
RubyGems
dry-rb/dry-monads
Useful, common monads in idiomatic Ruby
MITSep 10, 2026 · metrics 2.10.0
npm
zrosenbauer/massaman
Functional programming utilities for TypeScript. Result types, pattern matching, async pipelines.
MITOct 1, 2026 · metrics 2.10.0
npm
duplojs/utils
@duplojs/utils is the TypeScript utility toolbox used across the DuploJS ecosystem. It focuses on strong typing, good DX, and small composable primitives that scale from simple helpers to full validation pipelines.
No licenseSep 18, 2026 · metrics 2.10.0
NuGet
draekien-industries/waystone-dotnet
A collection of class libraries which implement useful patterns that can be used in .NET
No licenseOct 21, 2026 · metrics 2.10.0
npm
jagreehal/awaitly
Typed async workflows with Result types and automatic error inference
MITSep 15, 2026 · metrics 2.10.0
npm
a-synchronous/rubico
[A]synchronous Functional Programming
Custom licenseOct 21, 2026 · metrics 2.10.0
NuGet · npm
MelbourneDeveloper/RestClient.Net
The safest way to make REST calls in C# with an MCP Generator
No licenseOct 1, 2026 · metrics 2.10.0
crates.io
category-labs/monad-revm
No repository description published.
MITSep 18, 2026 · metrics 2.10.0
—
dotty-cps-async/dotty-cps-async
experimental CPS transformer for dotty
Apache-2.0Sep 13, 2026 · metrics 2.10.0
npm · Go
lsm/superpipe
Functional composition made simple
MITOct 9, 2026 · metrics 2.10.0
crates.io
category-labs/alloy-monad-evm
No repository description published.
MITSep 18, 2026 · metrics 2.10.0
NuGet
louthy/language-ext
C# pure functional programming framework - come and get declarative!
MITAug 28, 2026 · metrics 2.10.0
npm
hansogj/utils-ws
Workspace monorepo to collect my frontend snippets and libs
MITSep 18, 2026 · metrics 2.10.0
npm
Dexter-DAO/dexter-x402-sdk
TypeScript SDK for x402 buyers and sellers, with bounded Solana Tabs and one-shot multichain payments.
MITSep 13, 2026 · metrics 2.10.0
—
JohSand/Orsak
No repository description published.
MITSep 24, 2026 · metrics 2.10.0
Go
TeaEntityLab/fpGo
Monad, Functional Programming features for Golang
MITSep 24, 2026 · metrics 2.10.0
PyPI
python-parsy/parsy
Easy and elegant parser combinators for Python. With awesome docs.
MITSep 14, 2026 · metrics 2.10.0
npm
3axap4eHko/nalloc
No repository description published.
No licenseOct 4, 2026 · metrics 2.10.0
npm
cgoinglove/ts-safe
🔗 Safe: A minimalist functional utility for JavaScript/TypeScript that makes error handling and async operations painless. Chain methods fluently with strong type safety, zero dependencies.
MITSep 18, 2026 · metrics 2.10.0
NuGet
moonad-dotnet/moonad
A simple F#'s monads port for C#.
MITOct 18, 2026 · metrics 2.10.0
Packagist
php-standard-library/option
Option type (Some/None) replacing nullable types with explicit presence semantics
MITSep 14, 2026 · metrics 2.10.0
Packagist
php-standard-library/result
Result type capturing success or failure as a value for controlled error handling
MITSep 14, 2026 · metrics 2.10.0
NuGet
gianlucabelvisi/TinyTools
No repository description published.
GPL-3.0Sep 14, 2026 · metrics 2.10.0