Apache Solr website screenshot

Apache Solr

Apache Solr is a popular, open source enterprise search platform built on Apache Lucene that provides full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document handling. Solr powers the search and navigation features of many of the world's largest internet sites and is highly scalable and reliable. Solr exposes a comprehensive HTTP/REST API (v1 and v2) for indexing, querying, and managing cores, collections, and configurations.

Apache Solr publishes 7 APIs on the APIs.io network, including Collections API, CollectionsAdminHandler API, Config API, and 4 more. Tagged areas include Search, Enterprise Search, Full-Text Search, Open Source, and Lucene.

Apache Solr’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.0/100 emerging ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessSelf serve
8 APIs
SearchEnterprise SearchFull-Text SearchOpen SourceLuceneIndexing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 24.0/100 · emerging
Contract Quality 11.7 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.5 / 10
Agent readiness — 28/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/solr: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Apache Solr REST API

HTTP/REST API for Apache Solr providing endpoints for querying, indexing, schema management, collections administration, and core administration. The v2 API uses RESTful resourc...

Apache Solr Collections API

Cluster-level collection management

Apache Solr CollectionsAdminHandler API

Legacy Collections admin handler endpoints

Apache Solr Config API

Per-collection configuration operations

Apache Solr Cores API

Node-level core administration

Apache Solr Schema API

Per-collection schema operations

Apache Solr Shards API

Shard management for collections

Apache Solr Update API

Per-collection document update operations

Scroll for all 8

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Apache Solr REST API

OPEN COLLECTION

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Solr Authentication

http · 1 scheme

SECURITY

Solr Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Solr Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Solr Agentic Access

14 operations · 10 acting

14 operations · 10 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Community
Community

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

Downloads
Downloads

Source (apis.yml)

apis.yml Raw ↑ 
aid: solr
name: Apache Solr
description: Apache Solr is a popular, open source enterprise search platform built on Apache Lucene that provides full-text
  search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document handling. Solr powers
  the search and navigation features of many of the world's largest internet sites and is highly scalable and reliable. Solr
  exposes a comprehensive HTTP/REST API (v1 and v2) for indexing, querying, and managing cores, collections, and configurations.
type: Index
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/solr.png
tags:
- Search
- Enterprise Search
- Full-Text Search
- Open Source
- Lucene
- Indexing
url: https://raw.githubusercontent.com/api-evangelist/solr/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
- aid: solr:rest-api
  name: Apache Solr REST API
  description: HTTP/REST API for Apache Solr providing endpoints for querying, indexing, schema management, collections administration,
    and core administration. The v2 API uses RESTful resource paths under /api while the legacy v1 API uses /solr endpoints.
    Authentication is pluggable and supports Basic, JWT, and Certificate authentication.
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Search
  - Indexing
  - Collections
  - Cores
  - Schema
  - Query
  properties:
  - type: Documentation
    url: https://solr.apache.org/guide/
  - type: V2 API Reference
    url: https://solr.apache.org/guide/solr/latest/configuration-guide/v2-api.html
  - type: Collections API
    url: https://solr.apache.org/guide/solr/latest/configuration-guide/collections-api.html
  - type: Client APIs
    url: https://solr.apache.org/guide/solr/latest/deployment-guide/client-apis.html
- aid: solr:solr-collections-api
  name: Apache Solr Collections API
  description: Cluster-level collection management
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/solr-collections-api-openapi.yml
- aid: solr:solr-collectionsadminhandler-api
  name: Apache Solr CollectionsAdminHandler API
  description: Legacy Collections admin handler endpoints
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - CollectionsAdminHandler
  properties:
  - type: OpenAPI
    url: openapi/solr-collectionsadminhandler-api-openapi.yml
- aid: solr:solr-config-api
  name: Apache Solr Config API
  description: Per-collection configuration operations
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/solr-config-api-openapi.yml
- aid: solr:solr-cores-api
  name: Apache Solr Cores API
  description: Node-level core administration
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Cores
  properties:
  - type: OpenAPI
    url: openapi/solr-cores-api-openapi.yml
- aid: solr:solr-schema-api
  name: Apache Solr Schema API
  description: Per-collection schema operations
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/solr-schema-api-openapi.yml
- aid: solr:solr-shards-api
  name: Apache Solr Shards API
  description: Shard management for collections
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Shards
  properties:
  - type: OpenAPI
    url: openapi/solr-shards-api-openapi.yml
- aid: solr:solr-update-api
  name: Apache Solr Update API
  description: Per-collection document update operations
  humanURL: https://solr.apache.org/guide/
  baseURL: http://localhost:8983/api
  tags:
  - Update
  properties:
  - type: OpenAPI
    url: openapi/solr-update-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/solr-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/solr-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/solr-domain-security.yml
- type: Authentication
  url: authentication/solr-authentication.yml
- type: Website
  url: https://solr.apache.org/
- type: Documentation
  url: https://solr.apache.org/guide/
- type: GitHub
  url: https://github.com/apache/solr
- type: Downloads
  url: https://solr.apache.org/downloads.html
- type: Community
  url: https://solr.apache.org/community.html
- url: https://solr.apache.org/feeds/solr/news.atom.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com