# Apache Solr

**Canonical:** https://apis.io/providers/solr/  
**Website:** https://solr.apache.org/  
**APIs profiled:** 8

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.

## Kin Score — 24.4 / 100 (emerging)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 24.4).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 46.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 28.6 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 26.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (8)

- **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

## Agentic access (1)

- **Solr Agentic Access** — 14 operations · 10 acting

## Security (3)

- **Solr Authentication** — http · 1 scheme
- **Solr Domain Security** — TLSv1.3 · HSTS · DMARC
- **Solr Vulnerability Disclosure** — security.txt · contact published

## Tags

Search, Enterprise Search, Full-Text Search, Open-Source, Lucene, Indexing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/solr/). Scores are computed from the provider's own public artifacts under a published rubric.