Apache Solr

aid: apache-solr
name: Apache Solr
description: Apache Solr is an open-source enterprise search platform built on Apache Lucene. It provides distributed indexing,
  replication, load-balanced querying, automated failover and recovery, and centralized configuration through SolrCloud. Solr
  exposes comprehensive REST/HTTP APIs for document indexing, full-text search with faceting and highlighting, schema management,
  collections management, and cluster operations. It is an Apache Software Foundation project used by major organizations
  for enterprise-scale search solutions.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/apache-solr.png
tags:
- Enterprise Search
- Full-Text Search
- Lucene
- Search
- SolrCloud
- Open Source
- Java
created: '2026-03-16'
modified: '2026-04-19'
url: https://raw.githubusercontent.com/api-evangelist/apache-solr/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: apache-solr:apache-solr-search-api
  name: Apache Solr Search API
  description: The Solr Search API provides HTTP endpoints for full-text document search, including query parsers (Standard,
    DisMax, Extended DisMax), JSON Query DSL, faceting and JSON Facet API, spell checking, suggestions, MoreLikeThis, spatial
    search, dense vector search, result grouping, highlighting, and result clustering. Queries are submitted to the /select
    handler and support complex relevancy scoring with Learning to Rank.
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Search
  - Faceting
  - Full-Text Search
  - REST
  - Indexing
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/query-guide/json-request-api.html
- aid: apache-solr:apache-solr-indexing-api
  name: Apache Solr Indexing API
  description: The Solr Indexing API provides HTTP endpoints for adding, updating, and deleting documents from the search
    index. It supports JSON, XML, CSV, and binary Solr formats via the /update handler, atomic updates, optimistic concurrency,
    document routing in SolrCloud, and the DataImportHandler for bulk loading from databases and file systems.
  humanURL: https://solr.apache.org/guide/solr/latest/indexing-guide/indexing-with-update-handlers.html
  tags:
  - Indexing
  - Documents
  - REST
  - Updates
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/indexing-guide/indexing-with-update-handlers.html
- aid: apache-solr:apache-solr-schema-api
  name: Apache Solr Schema API
  description: The Solr Schema API provides REST endpoints for managing the schema of a Solr collection, including field types,
    fields, dynamic fields, and copy fields. The Managed Schema approach allows runtime schema modifications without server
    restart via the /schema endpoint.
  humanURL: https://solr.apache.org/guide/solr/latest/indexing-guide/schema-api.html
  tags:
  - Schema
  - REST
  - Management
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/indexing-guide/schema-api.html
- aid: apache-solr:apache-solr-collections-api
  name: Apache Solr Collections API
  description: The Solr Collections API provides REST endpoints for managing SolrCloud collections, shards, replicas, and
    aliases. It supports collection creation, deletion, modification, shard splitting, replica management, collection backup/restore,
    alias management, and cross-datacenter replication (CDCR) configuration.
  humanURL: https://solr.apache.org/guide/solr/latest/deployment-guide/cluster-node-management.html
  tags:
  - Collections
  - SolrCloud
  - Cluster
  - Management
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/deployment-guide/cluster-node-management.html
- aid: apache-solr:apache-solr-config-api
  name: Apache Solr Config API
  description: The Solr Config API and Request Parameters API provide REST endpoints for managing Solr's solrconfig.xml settings
    at runtime without server restart, including request handler configuration, search component configuration, query settings,
    and configset management. The v2 API provides a modern JSON-based interface for all configuration operations.
  humanURL: https://solr.apache.org/guide/solr/latest/configuration-guide/config-api.html
  tags:
  - Configuration
  - REST
  - Management
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/solr/latest/configuration-guide/config-api.html
- aid: apache-solr:apache-solr-cluster-api
  name: Apache Solr Cluster API
  description: Cluster status and properties
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Cluster
  properties:
  - type: OpenAPI
    url: openapi/apache-solr-cluster-api-openapi.yml
- aid: apache-solr:apache-solr-collections-api
  name: Apache Solr Collections API
  description: Manage SolrCloud collections, replicas, and nodes
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/apache-solr-collections-api-openapi.yml
- aid: apache-solr:apache-solr-query-api
  name: Apache Solr Query API
  description: Search a collection
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Query
  properties:
  - type: OpenAPI
    url: openapi/apache-solr-query-api-openapi.yml
- aid: apache-solr:apache-solr-schema-api
  name: Apache Solr Schema API
  description: Read and modify the schema of a collection
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/apache-solr-schema-api-openapi.yml
- aid: apache-solr:apache-solr-update-api
  name: Apache Solr Update API
  description: Index, update, and delete documents
  humanURL: https://solr.apache.org/guide/solr/latest/query-guide/query-syntax-and-parsers.html
  tags:
  - Update
  properties:
  - type: OpenAPI
    url: openapi/apache-solr-update-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/apache-solr-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/apache-solr-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/apache-solr-domain-security.yml
- type: Authentication
  url: authentication/apache-solr-authentication.yml
- type: GitHubRepository
  url: https://github.com/apache/solr
- type: Documentation
  url: https://solr.apache.org/guide/solr/latest/
- type: Portal
  url: https://solr.apache.org/
- type: GettingStarted
  url: https://solr.apache.org/guide/solr/latest/getting-started/introduction.html
- type: ReleaseNotes
  url: https://github.com/apache/solr/releases
- type: Support
  url: https://solr.apache.org/community.html
- type: TermsOfService
  url: https://www.apache.org/licenses/
- type: SDKs
  url: https://solr.apache.org/guide/solr/latest/deployment-guide/solrj.html
  title: SolrJ Java Client
- type: SDKs
  url: https://github.com/apache/solr-operator
  title: Solr Kubernetes Operator
- type: Features
  data:
  - name: Full-Text Search
    description: Comprehensive full-text search with tokenization, stemming, synonyms, and relevance scoring.
  - name: SolrCloud
    description: Distributed search and indexing with automatic sharding, replication, and ZooKeeper coordination.
  - name: Faceted Search
    description: Dynamic faceting including field facets, range facets, pivot facets, and JSON Facet API.
  - name: Streaming Expressions
    description: SQL-like streaming expressions for distributed corpus analytics and aggregations.
  - name: Dense Vector Search
    description: Approximate nearest neighbor (ANN) search for AI/ML vector embeddings using HNSW algorithm.
  - name: Learning to Rank
    description: Machine learning-based relevancy tuning with custom feature extraction and model training.
  - name: Real-Time Get
    description: Near-real-time document retrieval before documents are committed to the index.
  - name: Spatial Search
    description: Geographic and spatial search with distance filtering and bounding box queries.
  - name: SQL Interface
    description: SQL query language with JDBC support for analytics tools like Zeppelin and R.
- type: UseCases
  data:
  - name: Enterprise Search
    description: Unified enterprise search across documents, databases, web content, and file systems.
  - name: E-Commerce Product Search
    description: Product catalog search with faceting, filtering, and recommendation engines.
  - name: Log Analytics
    description: Log ingestion and search for operational intelligence and security analysis.
  - name: AI/ML Vector Search
    description: Semantic and similarity search using dense vector embeddings from AI models.
  - name: Content Management Search
    description: Full-text search backend for CMS platforms and digital asset management systems.
- type: Integrations
  data:
  - name: Apache ZooKeeper
    description: Distributed coordination service for SolrCloud cluster management and configuration.
  - name: Apache Kafka
    description: Stream ingestion via Kafka connector for real-time document indexing.
  - name: Kubernetes
    description: Solr Kubernetes Operator for cloud-native deployment and management.
  - name: Grafana
    description: Metrics integration via Prometheus exporter for Solr cluster monitoring.
  - name: Apache Tika
    description: Document parsing for indexing rich content like PDFs, Word documents, and HTML.
  - name: Apache NiFi
    description: Data flow integration for automated document ingestion pipelines.
  - name: OpenNLP
    description: Natural language processing integration for text analysis and named entity recognition.
- type: Blog
  url: https://solr.apache.org/news.html
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com