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SPECIFICTION
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AllegroGraph

agraph.franz.com

Free plan WebLinuxAPISelf-hosted
Visit agraph.franz.com
Spec score 8.3 #6 of 26 in RDF Databases

What it is

AllegroGraph is a persistent graph database for RDF triples and quads, generic graphs, and vectors, using disk-based storage and efficient memory utilization. It supports SPARQL, RDFS++ reasoning, and Prolog, plus geospatial and temporal reasoning, social network analysis, native data types, and range queries. The database is ACID-compliant and includes online backups, point-in-time recovery, replication, and warm standby. It can integrate with large language models and store embedding vectors in a vector database. Security features include role-based permissions, repository access controls, security filters, and triple-level controls using attributes. LDAP and OAuth/OIDC authentication are supported, with TLS for client connections; the security overview recommends third-party tools for encryption at rest. Clients include Java, Python, and Lisp, alongside REST and browser-based WebView access. The server runs natively on x86-64 Linux, with documented Docker, Windows Subsystem for Linux, virtual machine, and cloud options. The free edition costs nothing, has no expiration or license key requirement, and allows up to 5,000,000 triples.

Spec sheet

Product
AllegroGraph is a persistent graph database designed to scale to billions of quads, with disk-based storage and efficient memory utilization.Read 30 Sep 2026 · agraph.franz.com
Deployment
The server runs natively on x86-64 Linux; the maker also documents Docker, Windows Subsystem for Linux, virtual machines, and cloud provider options.Read 30 Sep 2026 · agraph.franz.com
Integrations
The documentation lists integrations with PoolParty, Cloudera Hadoop, MongoDB, Apache Solr, TopBraid Composer, Anaconda, and Racer.Read 30 Sep 2026 · agraph.franz.com
Headquarters
Lafayette, California, USARead 23 Sep 2026 · agraph.franz.com
Founded
1984Read 23 Sep 2026 · agraph.franz.com
AI and vectors
AllegroGraph supports integration with large language models and can store embedding vectors in a vector database.Read 30 Sep 2026 · agraph.franz.com
Authentication and encryption
The security overview lists LDAP and OAuth/OIDC authentication and TLS for client connections; it recommends third party tools for encryption at rest.Read 30 Sep 2026 · agraph.franz.com
Client access
Clients include Java, Python, and Lisp; AllegroGraph also provides a REST interface and browser based WebView.Read 30 Sep 2026 · agraph.franz.com
Data analysis
AllegroGraph supports geospatial and temporal reasoning, social network analysis, native data types, and range queries.Read 30 Sep 2026 · agraph.franz.com
Hosted option
AllegroGraph Cloud is described as a web-based platform for setting up AllegroGraph servers, and the downloads page advertises a free hosted version.Read 30 Sep 2026 · agraph.franz.com
Query and reasoning
It supports SPARQL, RDFS++ reasoning, and Prolog.Read 30 Sep 2026 · agraph.franz.com
Security controls
Security features include role based permissions, repository access controls, security filters, and triple level controls using attributes.Read 30 Sep 2026 · agraph.franz.com
Support and documentation
Franz provides AllegroGraph product documentation and lists technical questions and bug reports as support topics on its support page.Read 30 Sep 2026 · agraph.franz.com
Transactions and recovery
The product page describes AllegroGraph as ACID-compliant and lists online backups, point-in-time recovery, replication, and warm standby.Read 30 Sep 2026 · agraph.franz.com

Plans and prices

Free Edition Free No license key required; no expiration date Maximum 5,000,000 triples Read 30 Sep 2026 · agraph.franz.com

Every AllegroGraph plan and price →

Strong points and limits

Strong points

  • SPARQL, RDFS++, and Prolog support
  • ACID transactions with recovery features
  • Vector storage and LLM integration
  • Multiple authentication and access controls
  • Free edition has no expiration

Limits

  • Free edition capped at 5,000,000 triples
  • Runs natively on x86-64 Linux
  • Encryption at rest needs third-party tools
  • No SQL support listed

Who it suits

AllegroGraph suits developers and organizations working with graph, RDF, or vector data who need reasoning, transaction recovery, and multiple deployment options. Its free edition provides a bounded way to run up to 5,000,000 triples.

Verdict

AllegroGraph offers graph querying, reasoning, recovery, security controls, and vector capabilities across self-hosted and hosted options. The free edition is clearly limited by its triple ceiling, while broader deployments require evaluating the supported environments.

Where Specifiction places it

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