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Infinispan

infinispan.org

Free plan LinuxAPISelf-hosted
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Spec score 7.6 #13 of 31 in Key-Value Databases

What it is

Infinispan is a free, open-source distributed in-memory database that combines caching with full-text and vector search. Its search capabilities include distributed vector indexes, kNN similarity queries, semantic search, retrieval-augmented generation, and semantic caching. Applications can connect through Hot Rod, REST, Redis, or Memcached, with listed client libraries for Java, Go, JavaScript, C++, .NET, and Python. It can run as an embedded library, standalone server, or container image. Deployment options include a Kubernetes Operator and container images on OpenShift, AWS EC2, Azure, and GCP. Listed cache stores include filesystem, JDBC, SQL, RocksDB, and remote Infinispan clusters. Security features include role- and permission-based access control, security realms, and encryption for inter-cluster traffic and remote endpoints. It supports distributed transactions with optimistic or pessimistic locking, configurable isolation levels, and XA recovery. Native integrations listed include Spring AI, LangChain4j, LangChain, and Quarkus LangChain4j. Infinispan is released under the Apache 2.0 license. Its support policy covers only the latest minor release of a major version, with full, limited, and limited-client support distinctions.

Spec sheet

Product
Infinispan is an open-source distributed in-memory database with full-text and vector search.Read 2 Oct 2026 · infinispan.org
Deployment
Infinispan can run as an embedded library, standalone server, or container image.Read 2 Oct 2026 · infinispan.org
Integrations
The features page lists native integrations with Spring AI, LangChain4j, LangChain, and Quarkus LangChain4j.Read 2 Oct 2026 · infinispan.org
Security
The feature page lists role and permission based access control, security realms, and encryption for inter-cluster traffic and remote endpoints.Read 2 Oct 2026 · infinispan.org
License
Infinispan is released under the Apache 2.0 open-source license.Read 2 Oct 2026 · infinispan.org
Client libraries
The Hot Rod client page lists Java, Go, JavaScript, C++, .NET, and Python clients.Read 2 Oct 2026 · infinispan.org
Cloud support
The site lists a Kubernetes Operator and container image deployment on OpenShift, AWS EC2, Azure, and GCP.Read 2 Oct 2026 · infinispan.org
Persistence
Listed cache stores include filesystem, JDBC, SQL, RocksDB, and remote Infinispan cluster stores.Read 2 Oct 2026 · infinispan.org
Protocols
Clients can connect through Hot Rod, REST, Redis, or Memcached protocols.Read 2 Oct 2026 · infinispan.org
Search and AI
Features include distributed vector indexes, kNN similarity queries, semantic search, RAG, and semantic caching.Read 2 Oct 2026 · infinispan.org
Support channels
For usage questions, the site recommends GitHub Discussions and Stack Overflow; development chat is on Zulip.Read 2 Oct 2026 · infinispan.org
Support policy
The releases page says only the latest minor release of a major version is supported and distinguishes full, limited, and limited client support.Read 2 Oct 2026 · infinispan.org
Transactions
Infinispan supports distributed transactions with optimistic or pessimistic locking, configurable isolation levels, and XA recovery.Read 2 Oct 2026 · infinispan.org

Plans and prices

Community Edition Free Apache 2.0 open-source license · embedded library or standalone server · deployment and support limits not stated Read 2 Oct 2026 · infinispan.org

Every Infinispan plan and price →

Strong points and limits

Strong points

  • Free under the Apache 2.0 license.
  • Supports full-text and vector search capabilities.
  • Runs embedded, as a standalone server, or as a container.
  • Offers multiple protocols and client libraries.
  • Includes access controls, encryption, and distributed transactions.

Limits

  • Support covers only the latest minor release of a major version.
  • Support levels vary, including limited-client support.

Who it suits

It suits developers building self-hosted or embedded applications that need distributed caching and search. Teams using vector search, semantic search, or transaction support can assess its deployment and client options against their stack.

Verdict

Infinispan combines distributed in-memory storage with search, varied deployment choices, and transaction and security features. Its support policy is version-specific, so check the stated release coverage when planning use.

Where Specifiction places it

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