install

Additional install commands

macOS

Homebrewverified · 100%

brew install cayley

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#cayley

nixpkgs package indexes · pkgs/by-name/ca/cayley/package.nix · source: api.github.com

overview

Package summary

Graph database inspired by Freebase and Knowledge Graph

Project links

Commands and aliases

cayley

history

Project history and usage

Cayley is an open-source linked-data graph database and CLI that presents graph storage, query, REPL, HTTP server, and visualization workflows in a Go package.

Project history

The project describes itself as inspired by the graph database behind Google's Knowledge Graph, formerly Freebase. Its public GitHub repository was created in 2014 and the README frames Cayley around linked data, multiple query languages, and application-oriented graph workloads.

Adoption history

Cayley's README says it is production-ready and used by various companies for production workloads. In package-manager terms it has also been carried by Homebrew and Nix, giving Unix users a one-command install path for a standalone graph database.

How it is used

Users typically run `cayley http` for the web interface/API, load RDF-like quad data, and query it with Gizmo, an MQL-style language for Freebase users, or GraphQL-inspired queries. The official configuration docs describe YAML/JSON config files plus command-line and environment-variable overrides.

Why package nerds care

Cayley is interesting as a self-contained Go graph database package: one formula installs a graph server, REPL, query tooling, and multiple storage backends without deploying a larger database stack. Its Freebase/Knowledge Graph lineage gives it a distinct niche among RDF and linked-data tools.

Timeline

2014: Public GitHub repository created.
2018: v0.7.5 release published on GitHub.
2019: v0.7.7 release published on GitHub.

Related projects

Cayley documents query-language connections to Gremlin, GraphQL-style queries, and MQL, and supports storage backends including LevelDB, Bolt, MongoDB, Elasticsearch, PostgreSQL, MySQL, and SQLite.

Sources

security posture

Risk level: orange

broad file, network, media, or database tool signal. formula declares a Homebrew service.

Risk classifier

orange risk · medium confidence · infrastructure

Why

broad file, network, media, or database tool signal
formula declares a Homebrew service

Signals

metadata:service
text:database

Install behavior

Homebrew declares a post-install hook for this formula.
Formula metadata declares a service or daemon block.
Homebrew bottle metadata is available for 13 platform targets.
Build metadata lists 3 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

local files

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

Config paths the tool may read or write during local use.

Unix: --config/-c path$CAYLEY_CFG./cayley.yml./cayley.json~/.cayley/cayley.yml~/.cayley/cayley.json/etc/cayley.yml/etc/cayley.json

executables

Installed executables

Command	Kind	Exposure	Note
`cayley`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version0.7.7

manager updated2026-06-15

local dataok

upstreamnot checked

latest detectednot detected

https://github.com/cayleygraph/cayley

infoNo cached GitHub release or tag data was available.https://github.com/cayleygraph/cayleynone confidence

install metadata

Package metadata

Package key	brew:cayley
Version	0.7.7
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/cayley
Homepage	https://cayley.io
Repository	https://github.com/cayleygraph/cayley
Upstream docs	https://cayley.gitbook.io/cayley
License	Apache-2.0
Source archive	https://github.com/cayleygraph/cayley.git
Last updated	2026-06-15T10:20:11-04:00
Pulse	updated
Build dependencies	breezy, go, mercurial
Bottle	available (on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux)
Homebrew post-install	defined
Service	declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	cayley
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

cayley

nix profile install nixpkgs#cayley

normalized package name match
Matched by: Cayley

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

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/cayley.yml

Used sources

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

Install cayley with Homebrew, Nix