Skip to content

@block Block Open Source

Change the repository type filter

All

    Repositories list

    87 repositories

    • artifact-swap

      Public
      A system for speeding up Gradle builds and IDE syncs by swapping artifacts to be used instead of gradle projects
      Kotlin
      •
      Apache License 2.0
      •3•9•1•9•Updated Feb 11, 2026Feb 11, 2026

    • goose

      Public
      an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
      mcp
      Rust
      •
      Apache License 2.0
      •2.7k•30k•260•88•Updated Feb 11, 2026Feb 11, 2026

    • bitty-city

      Public
      Business process for Bitcoin withdrawals from Custodial platforms (such as Square and Cash App)
      Kotlin
      •
      Apache License 2.0
      •1•3•1•8•Updated Feb 11, 2026Feb 11, 2026

    • cachew

      Public
      Cachew (pronounced cashew) is a super-fast application-level pass-through cache
      Go
      •
      Apache License 2.0
      •1•13•7•3•Updated Feb 11, 2026Feb 11, 2026

    • francis

      Public
      A Kotlin-based CLI for A/B performance testing on Android
      Kotlin
      •0•0•0•0•Updated Feb 11, 2026Feb 11, 2026

    • opensource.block.xyz

      Public
      Source for opensource.block.xyz
      Astro
      •
      Apache License 2.0
      •1•1•1•3•Updated Feb 11, 2026Feb 11, 2026

    • builderbot

      Public
      Incubating experimental AI projects to operate millions of lines of code
      Svelte
      •
      Apache License 2.0
      •1•1•1•2•Updated Feb 10, 2026Feb 10, 2026

    • verdikt

      Public
      A type-safe Kotlin Multiplatform rules engine with composable rules, coroutine support, and observability.
      Kotlin
      •
      Apache License 2.0
      •0•3•1•2•Updated Feb 10, 2026Feb 10, 2026

    • agent-task-queue

      Public
      Local task queuing for AI agents. Prevents multiple agents from running expensive operations concurrently and thrashing your machine.
      Python
      •
      Apache License 2.0
      •2•27•1•4•Updated Feb 10, 2026Feb 10, 2026

    • frfr

      Public
      high-confidence document q+a system for complex docs
      Go
      •
      Apache License 2.0
      •1•10•2•3•Updated Feb 10, 2026Feb 10, 2026

    • lefthookmerge

      Public
      Merges global and repo lefthook configs
      Rust
      •
      Apache License 2.0
      •0•0•1•0•Updated Feb 10, 2026Feb 10, 2026

    • agent-skills

      Public
      A marketplace for agent skills
      JavaScript
      •
      Apache License 2.0
      •3•2•1•0•Updated Feb 10, 2026Feb 10, 2026

    • trailblaze

      Public
      AI-driven mobile testing framework.
      Kotlin
      •
      Apache License 2.0
      •9•209•15•0•Updated Feb 10, 2026Feb 10, 2026

    • elasticgraph

      Public
      Schema-driven, scalable, cloud-native, batteries-included GraphQL, backed by Elasticsearch/OpenSearch
      searchgraphqlelasticsearchreportingopensearch
      Ruby
      •
      MIT License
      •19•66•11•11•Updated Feb 10, 2026Feb 10, 2026

    • wt

      Public
      A set of command line tools to help working with Bazel + IntelliJ-based AI worktrees in large codebases
      Shell
      •
      Apache License 2.0
      •3•3•1•1•Updated Feb 10, 2026Feb 10, 2026

    • ln-invoice

      Public
      Parse lightning network payment requests (invoices) in Kotlin.
      Kotlin
      •
      Apache License 2.0
      •3•18•1•0•Updated Feb 9, 2026Feb 9, 2026

    • plug-and-play-template

      Public
      Video template for devrel team plug and plays
      TypeScript
      •
      Apache License 2.0
      •0•0•1•0•Updated Feb 9, 2026Feb 9, 2026

    • client-for-vantage

      Public
      An SDK for interacting with the Vantage API, works with various Vantage API endpoints, provides type safety via codegen Pydantic classes and manages pagination
      Python
      •
      Apache License 2.0
      •0•3•0•0•Updated Feb 9, 2026Feb 9, 2026

    • ospo

      Public
      Code monorepo, issue tracking and other GitHub features for the Block Open Source Program Office
      Astro
      •
      Apache License 2.0
      •5•9•1•3•Updated Feb 9, 2026Feb 9, 2026

    • scaffolder

      Public
      A general-purpose project scaffolding tool inspired by cookiecutter
      Go
      •
      Apache License 2.0
      •2•10•1•1•Updated Feb 9, 2026Feb 9, 2026

    • kfsm

      Public
      Finite state machinery in Kotlin
      Kotlin
      •
      Apache License 2.0
      •1•31•1•0•Updated Feb 9, 2026Feb 9, 2026

    • gradle-monorepo-ij-plugin

      Public
      InteliJ Plugin for working with Gradle monorepos
      Kotlin
      •
      Apache License 2.0
      •1•5•1•1•Updated Feb 9, 2026Feb 9, 2026

    • kotlin-formatter

      Public
      A CLI and IntelliJ IDEA plugin for formatting Kotlin code, leveraging ktfmt for consistent style enforcement.
      Kotlin
      •
      Apache License 2.0
      •8•43•3•2•Updated Feb 9, 2026Feb 9, 2026

    • braindump

      Public
      A utility for dumping agent logs in a standard format
      Go
      •
      Apache License 2.0
      •0•0•1•0•Updated Feb 7, 2026Feb 7, 2026

    • bergr

      Public
      Bergr is a lightweight utility for inspecting Apache Iceberg tables
      Rust
      •
      Apache License 2.0
      •2•2•4•3•Updated Feb 7, 2026Feb 7, 2026

    • builder-syndicate

      Public
      An enterprise knowledge aggregator that unifies links and internal posts so teams and individuals find what matters, stay current, and learn from each other fas…
      Kotlin
      •
      Apache License 2.0
      •0•1•5•2•Updated Feb 6, 2026Feb 6, 2026

    • quiver

      Public
      Quiver is a collection of extension methods and handy functions to make the wonderful functional programming Kotlin library, Arrow, even better.
      Kotlin
      •
      Apache License 2.0
      •10•156•5•0•Updated Feb 6, 2026Feb 6, 2026

    • example-jvm-maven

      Public template
      Example to bootstrap new Java Kotlin Maven Projects
      Shell
      •
      Apache License 2.0
      •2•2•5•7•Updated Feb 5, 2026Feb 5, 2026

    • aittributor

      Public
      AIttributor is a prepare-commit-msg hook that adds AI agent attribution to git commits
      Rust
      •
      Apache License 2.0
      •1•1•1•0•Updated Feb 5, 2026Feb 5, 2026

    • domain-api

      Public
      A structured approach to implementing backend APIs for maximal client flexibility. It provides a framework for implementing domain-driven APIs that separate bus…
      Kotlin
      •
      Apache License 2.0
      •0•2•0•0•Updated Feb 5, 2026Feb 5, 2026