Central Index

Holds for

Not yet checked against Maven 3.9, 3.10 and 4.0

Changed

9 August 2026

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Central repository provides an index in /.index:

• full index (nexus-maven-repository-index.gz) is updated weekly,
• incremental index (nexus-maven-repository-index.<n>.gz + nexus-maven-repository-index.properties).

This index is built using Maven Indexer: see indexer-core documentation for more details on the available fields.

You can use Maven Indexer API (see examples) to use this index with a dedicated API, or use Apache Lucene indexes browsers like Luke or Marple after unpacking the index (see -u CLI option).

Digging Into Central Index with Luke

• download the Central index: nexus-maven-repository-index.gz

• download Maven Indexer CLI and unpack the index to raw Lucene index directory:

  java -jar indexer-cli-5.1.1.jar --unpack nexus-maven-repository-index.gz --destination central-lucene-index --type full
  
  

• download and extract Luke binary tarball and launch it on the Central index with Lucene format:

  luke.sh -ro -index central-lucene-index
  
  

  You need an old Luke version using an old Lucene version, since Maven Indexer 5.5.1 uses Lucene 3.6.2: for this tutorial, we chose Luke version 4.10.4, but you may choose another version.

  But with more recent Maven Indexer releases, more recent Lucene version have been used: see Maven Indexer dependencies.