This service is a policy decision point. It uses a set of access control policies, similar to
[AWS IAM Policies](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html), in order to determine whether
a subject, for example user, application, service, car, etc., is authorized to perform a certain action on a resource.
---
- [Introduction](#introduction)
- [Installation](#installation)
- [1. Download binaries](#1-download-binaries)
- [2. Using Docker](#2-using-docker)
- [Building from source](#building-from-source)
- [Ecosystem](#ecosystem)
- [ORY Security Console: Administrative User Interface](#ory-security-console-administrative-user-interface)
- [ORY Hydra: OAuth2 & OpenID Connect Server](#ory-hydra-oauth2--openid-connect-server)
- [ORY Oathkeeper: Identity & Access Proxy](#ory-oathkeeper-identity--access-proxy)
- [Examples](#examples)
- [Security](#security)
- [Disclosing vulnerabilities](#disclosing-vulnerabilities)
- [Telemetry](#telemetry)
- [Guide](#guide)
- [HTTP API documentation](#http-api-documentation)
- [Upgrading and Changelog](#upgrading-and-changelog)
- [Command line documentation](#command-line-documentation)
- [Backers](#backers)
- [Sponsors](#sponsors)
## Introduction
ORY Keto models Access Control Lists, Role Based Access Control, and fine-grained permission sets.
This server implementation uses [ORY Ladon](https://github.com/ory/ladon) as the decision engine.
ORY Keto resolves credentials using various authentication mechanisms:
* OAuth 2.0 Access Tokens using the OAuth 2.0 Introspection standard.
* Plaintext when you already know the user ID.
* JSON Web Tokens (coming soon).
* SAML (coming soon).
### Installation
There are various ways of installing ORY keto on your system.
#### 1. Download binaries
The client and server **binaries are downloadable at [releases](https://github.com/ory/keto/releases)**.
There is no installer yet available. Add the ORY keto binary to the PATH environment variable or add
the binary to a location already in your path (`/usr/bin`, ...).
If these download instructions are unclear, ask for clarification in our [chat channel](https://www.ory.sh/chat). We are happy to help.
#### 2. Using Docker
**Starting the host** is easiest with Docker. The host process handles HTTP requests and is backed by a database.
Read how to install docker on [Linux](https://docs.docker.com/linux/), [OSX](https://docs.docker.com/mac/) or
[Windows](https://docs.docker.com/windows/). ORY keto is available on [Docker Hub](https://hub.docker.com/r/oryd/keto/).
When using ORY keto without a database, restarting, scaling
or stopping the container will **lose all data**:
```
$ docker run -e "DATABASE_URL=memory" -d --name my-keto -p 4466:4466 oryd/keto
ec91228cb105db315553499c81918258f52cee9636ea2a4821bdb8226872f54b
```
#### Building from source
If you wish to compile ORY keto, install and set up [Go 1.10+](https://golang.org/) and add `$GOPATH/bin`
to your `$PATH` as well as [golang/dep](http://github.com/golang/dep).
The following commands check out the latest ORY keto's release tag, compile it and set up flags so that `keto version`
works as expected. Please note that this will only work with a linux shell like bash or sh.
```
go get -d -u github.com/ory/keto
cd $(go env GOPATH)/src/github.com/ory/keto
keto_LATEST=$(git describe --abbrev=0 --tags)
git checkout $keto_LATEST
dep ensure -vendor-only
go install \
-ldflags "-X github.com/ory/keto/cmd.Version=$keto_LATEST -X github.com/ory/keto/cmd.BuildTime=`TZ=UTC date -u '+%Y-%m-%dT%H:%M:%SZ'` -X github.com/ory/keto/cmd.GitHash=`git rev-parse HEAD`" \
github.com/ory/keto
git checkout master
keto help
```
## Ecosystem
### ORY Security Console: Administrative User Interface
The [ORY Security Console](https://console.ory.sh/) is a visual admin interface for ORY Hydra,
ORY Oathkeeper, and ORY Keto.
### ORY Hydra: OAuth2 & OpenID Connect Server
[ORY Hydra](https://github.com/ory/hydra) ORY Hydra is a hardened OAuth2 and OpenID Connect server optimized
for low-latency, high throughput, and low resource consumption. ORY Hydra is not an identity provider, which would include
user sign up, user log in, password reset flow. Hydra but connects to your existing identity provider through a consent app.
### ORY Oathkeeper: Identity & Access Proxy
[ORY Oathkeeper](https://github.com/ory/oathkeeper) is a BeyondCorp/Zero Trust Identity & Access Proxy (IAP) built
on top of OAuth2 and ORY Hydra.
### Examples
The [ory/examples](https://github.com/ory/examples) repository contains numerous examples of setting up this project and combining it with other services from the ORY Ecosystem.
## Security
### Disclosing vulnerabilities
If you think you found a security vulnerability, please refrain from posting it publicly on the forums, the chat, or GitHub
and send us an email to [hi@ory.am](mailto:hi@ory.am) instead.
## Telemetry
Our services collect summarized, anonymized data which can optionally be turned off. Click
[here](https://www.ory.sh/docs/guides/master/telemetry/) to learn more.
### Guide
The Guide is available [here](https://www.ory.sh/docs/guides/master/keto/).
### HTTP API documentation
The HTTP API is documented [here](https://www.ory.sh/docs/api/keto?version=master).
### Upgrading and Changelog
New releases might introduce breaking changes. To help you identify and incorporate those changes, we document these
changes in [UPGRADE.md](./UPGRADE.md) and [CHANGELOG.md](./CHANGELOG.md).
### Command line documentation
Run `keto -h` or `keto help`.
## Backers
Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/ory#backer)]
We would also like to thank (past & current) supporters (in alphabetical order) on [Patreon](https://www.patreon.com/_ory): Alexander Alimovs, Chancy Kennedy, Drozzy, Oz Haven, TheCrealm
## Sponsors
Sponsors support this project. The sponsor's logo or brand will show up here with a link to the website. [[Become a sponsor](https://opencollective.com/ory#sponsor)]
A special thanks goes out to **Wayne Robinson** for supporting this ecosystem with $200 every month since Oktober 2016 [on Patreon](https://www.patreon.com/_ory).