# Install kore with Homebrew, Nix, apt

Web application framework for writing web APIs in C. Version 4.2.3 via Homebrew; verified 2026-05-25.

## Install

```sh
sudo av install brew:kore
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install kore
```

  Evidence: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#kore
```

  Evidence: nixpkgs package indexes: pkgs/by-name/ko/kore/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- Ubuntu apt (92%):

```sh
sudo apt install kore
```

  Evidence: Ubuntu 24.04 LTS package indexes: kore from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

## Package facts

- **Package key:** brew:kore
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/kore>
- **Version:** 4.2.3
- **Source summary:** Web application framework for writing web APIs in C
- **Homepage:** <https://kore.io/>
- **Repository:** <https://git.kore.io/kore.git>
- **Upstream docs:** <https://docs.kore.io/4.2.0>
- **License:** ISC
- **Source archive:** <https://kore.io/releases/kore-4.2.3.tar.gz>
- **Last updated:** 2026-05-25T15:37:26Z
- **Generated:** 2026-07-08T07:18:31+00:00

## Executables

- kodev (cli)
- kore (cli)
- kodev (alias)
- kore (alias)

## Dependencies

- openssl@4

## Build dependencies

- pkgconf

## Install behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 4.2.3
- Package-manager updated: 2026-05-25
- Local data: ok
- Upstream repository: https://kore.io/
- info: Release/tag comparison is only available for GitHub repositories.
## Project history and usage

Kore is a C and Python web application platform centered on high-concurrency servers and secure-by-default operating-system isolation. In package catalogs it represents the small but enduring tradition of C-native web frameworks and application servers.

### Project history

The official site describes Kore as a platform for scalable, concurrent web processes in C or Python, with privilege separation and operating-system security features such as seccomp, pledge, and unveil. The official source browser lists Joris Vink as the dominant author across release tags and commits.

Kore's tagged release history reaches at least 1.1-release on 2014-03-01. The project moved through 2.0.0 in 2016, 3.x in 2018 and 2019, and 4.x beginning with 4.0.0 on 2020-08-26. The 4.2.0 documentation series was tagged on 2022-03-18, and the public site lists 4.2.3 as the release displayed on its front page.

### Adoption history

Kore did not become a mainstream web framework in the way higher-level language frameworks did, but it found a niche among developers who want a compact C/Python server with explicit TLS, worker, and security controls. The official site says it has been used in high-assurance cryptographic devices, machine-learning stacks, and aerospace applications.

Its package-manager adoption is specialist: Homebrew, Nix, and Ubuntu packaging in the input data put it in reach of systems programmers who want to experiment with or deploy C-based web services without manually building from upstream tarballs.

### How it is used

Kore applications are built around project files such as `conf/kore.conf` and `conf/build.conf`, with `kodev` helping create and build projects. Users choose it when they want a self-contained server/application framework rather than a library embedded inside a larger HTTP server.

The Python runtime work visible in the source history shows Kore evolving beyond pure C services while retaining its operating-system-level security posture.

### Why package nerds care

Kore is package-nerd significant because it keeps alive a specific kind of Unix tool: a lean, source-available web platform with first-class TLS, privilege separation, and explicit server controls.

For Homebrew users, it is the kind of formula that exposes a lesser-known systems framework without needing language-specific package managers or application scaffolding.

### Timeline

- 2014-03-01: 1.1-release tag appears in the official source browser.
- 2016-08-01: 2.0.0-release tag appears.
- 2018-07-09: 3.0.0-release tag appears.
- 2020-08-26: 4.0.0 tag appears.
- 2022-03-18: 4.2.0 tag appears.
- 2022-08-22: 4.2.3 tag appears.

### Related projects

- Kore belongs near other C or systems-oriented HTTP stacks such as nginx modules, libevent/libev-based servers, h2o, facil.io, civetweb, and embedded HTTP frameworks.
- Its security model also relates it to OpenBSD-originated ideas such as pledge and unveil, and to Linux seccomp-based service hardening.

### Sources

- <https://docs.kore.io/4.2.0/>
- <https://git.kore.io/kore/>
- <https://git.kore.io/kore/refs.html>
- <https://kore.io/>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: conf/kore.conf, conf/build.conf
## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** kore
- **Version Scheme:** 0
- **Revision:** 1
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## Other Package-Manager Records

- Nix - kore: normalized package name match | nixpkgs package indexes: pkgs/by-name/ko/kore/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - kore - 4.1.0-6: normalized package name match | Ubuntu 24.04 LTS package indexes: kore from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Web platform for writing scalable, concurrent APIs in C or Python | https://kore.io


## Related links

- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata.
- [openssl@4](https://www.automicvault.com/pkg/brew/openssl-4/) - Runtime dependency declared by Homebrew.
- [pkgconf](https://www.automicvault.com/pkg/brew/pkgconf/) - Build dependency declared by Homebrew.
- [ulfius](https://www.automicvault.com/pkg/brew/ulfius/) - Shares av.db curated category or tags: c, cli, developer-tools, web-framework.
- [amber](https://www.automicvault.com/pkg/brew/amber/) - Shares av.db curated category or tags: cli, developer-tools, web-framework.
- [cot](https://www.automicvault.com/pkg/brew/cot/) - Shares av.db curated category or tags: cli, developer-tools, web-framework.
- [cppcms](https://www.automicvault.com/pkg/brew/cppcms/) - Shares av.db curated category or tags: cli, developer-tools, web-framework.
- [gf](https://www.automicvault.com/pkg/brew/gf/) - Shares av.db curated category or tags: cli, developer-tools, web-framework.
- [treefrog](https://www.automicvault.com/pkg/brew/treefrog/) - Shares av.db curated category or tags: cli, developer-tools, web-framework.
- [conan](https://www.automicvault.com/pkg/brew/conan/) - Shares av.db curated category or tags: c, cli, developer-tools, python.
- [fastapi](https://www.automicvault.com/pkg/brew/fastapi/) - Shares av.db curated category or tags: cli, developer-tools, python, web-framework.

## Combined YAML source

View the package source record on GitHub. [combined/kore.yml](https://github.com/automic-vault/db/blob/main/combined/kore.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated configuration and credential file locations
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph
