macOS
brew install yazlocal Homebrew formula metadata
sudo port install yazMacPorts ports tree · net/yaz/Portfile · source: api.github.com
brew
Toolkit for Z39.50/SRW/SRU clients/servers. Version 5.37.3 via Homebrew; verified 2026-05-20.
install
brew install yazlocal Homebrew formula metadata
sudo port install yazMacPorts ports tree · net/yaz/Portfile · source: api.github.com
sudo apt install libyaz-devDebian stable package indexes · libyaz-dev · source: deb.debian.org
sudo dnf install libyazFedora Rawhide package metadata · libyaz · source: dl.fedoraproject.org
sudo pacman -S yazArch Linux sync databases · yaz · source: geo.mirror.pkgbuild.com
sudo zypper install libyaz-developenSUSE Tumbleweed package metadata · libyaz-devel · source: download.opensuse.org
overview
Toolkit for Z39.50/SRW/SRU clients/servers
history
YAZ is Index Data's C toolkit for building Z39.50, SRW/SRU, and related library-search clients and servers. For package nerds it is infrastructure from the library-automation world: a protocol stack, command-line utilities, and bindings that keep old and specialized bibliographic search networks usable from modern systems.
Index Data states that YAZ has been a leading toolkit for Z39.50 clients and servers since its first release in 1995. Over three decades it grew from Z39.50 support into SRW/SRU, Z39.50-2003, SRU 1.1 through 2.0, Solr client access through the ZOOM API, and a family of related bindings and tools.
The GitHub repository describes the main output as the YAZ library, containing support functions for implementing server and client roles for Z39.50 and SRU. The repository was created on GitHub in 2016, but its copyright line and official product page make clear that the toolkit predates the GitHub era by decades.
YAZ was adopted in the library and information-retrieval niche because Z39.50 is complex, old, and still operationally important. The Library of Congress Z39.50 software page lists YAZ and YAZ++ as C/C++ toolkits for Z39.50/SRW/SRU clients and servers, including Z39.50-2003 and the industry-standard ZOOM API.
Index Data's page emphasizes both direct use in C applications and downstream language bindings or sibling tools: YAZ++, PHP/YAZ, SimpleServer, NET::Z3950, yaz4j, and ZOOM API bindings. That ecosystem made YAZ a base layer for metasearch gateways, catalogs, discovery tools, and vendor integrations.
Developers use the library to implement Z39.50 and SRU client or server roles. Package users also get utilities such as yaz-client for interactive protocol testing, yaz-marcdump for inspecting MARC records, yaz-iconv and yaz-record-conv for record conversion, and zoomsh for ZOOM-based client work.
In practice, YAZ often appears when integrating library catalogs, debugging remote bibliographic services, converting MARC data, or maintaining older discovery systems that still speak Z39.50/SRU alongside newer HTTP APIs.
YAZ matters because it is a living bridge between pre-web library protocols and contemporary open-source packaging. It is not fashionable infrastructure, but it is exactly the sort of deeply specialized C library that keeps institutional data systems interoperable.
It is also a good reminder that package ecosystems are not only developer fashion cycles. Some packages persist because standards, public institutions, and long-lived catalogs persist.
security posture
No matching local secret-handling manifest was found for yaz. Nucleus package metadata is still published here so future coverage has a stable package URL.
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
yaz-asncomp | cli | global executable | |
yaz-client | cli | global executable | |
yaz-config | cli | global executable | |
yaz-iconv | cli | global executable | |
yaz-icu | cli | global executable | |
yaz-illclient | cli | global executable | |
yaz-json-parse | cli | global executable | |
yaz-marcdump | cli | global executable | |
yaz-record-conv | cli | global executable | |
yaz-url | cli | global executable | |
yaz-ztest | cli | global executable | |
zoomsh | cli | global executable |
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.
https://www.indexdata.com/resources/software/yaz/
install metadata
| Package key | brew:yaz |
|---|---|
| Version | 5.37.3 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/yaz |
| Homepage | https://www.indexdata.com/resources/software/yaz/ |
| Repository | https://github.com/indexdata/yaz |
| Upstream docs | https://software.indexdata.com/yaz/doc/index.html |
| License | BSD-3-Clause |
| Source archive | https://ftp.indexdata.com/pub/yaz/yaz-5.37.3.tar.gz |
| Last updated | 2026-05-20T17:39:04Z |
| Pulse | updated |
| Dependencies | gnutls, icu4c@78 |
| Build dependencies | pkgconf |
| Uses from macOS | libxml2, libxslt |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | yaz |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
libyaz-dev 5.34.4-1+b1
Z39.50/SRW/SRU toolkit (development files)
https://www.indexdata.com/resources/software/yaz/
sudo apt install libyaz-devlibyaz5 5.34.4-1+b1
Z39.50/SRW/SRU toolkit (libraries)
https://www.indexdata.com/resources/software/yaz/
sudo apt install libyaz5yaz 5.34.4-1+b1
Z39.50/SRW/SRU toolkit (utilities)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yazyaz-doc 5.34.4-1
Z39.50/SRW/SRU toolkit (documentation)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-docyaz-icu 5.34.4-1+b1
Z39.50/SRW/SRU toolkit (command-line client for ICU)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-icuyaz-illclient 5.34.4-1+b1
Z39.50/SRW/SRU toolkit (command-line client for ILL)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-illclientlibyaz-dev 5.34.0-1build4
Z39.50/SRW/SRU toolkit (development files)
https://www.indexdata.com/resources/software/yaz/
sudo apt install libyaz-devlibyaz5 5.34.0-1build4
Z39.50/SRW/SRU toolkit (libraries)
https://www.indexdata.com/resources/software/yaz/
sudo apt install libyaz5yaz 5.34.0-1build4
Z39.50/SRW/SRU toolkit (utilities)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yazyaz-doc 5.34.0-1build4
Z39.50/SRW/SRU toolkit (documentation)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-docyaz-icu 5.34.0-1build4
Z39.50/SRW/SRU toolkit (command-line client for ICU)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-icuyaz-illclient 5.34.0-1build4
Z39.50/SRW/SRU toolkit (command-line client for ILL)
https://www.indexdata.com/resources/software/yaz/
sudo apt install yaz-illclientlibyaz 5.37.3-2.fc45
Shared libraries for yaz
sudo dnf install libyazlibyaz-devel 5.37.3-2.fc45
Development files for yaz
sudo dnf install libyaz-develyaz 5.37.3-2.fc45
Z39.50/SRW/SRU toolkit
sudo dnf install yazyaz-doc 5.37.3-2.fc45
Documentation for yaz
sudo dnf install yaz-docsource trail
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View the package source record on GitHub.