HydraDB

Fast graph database built on object storage, for modern agents

About HydraDB

HydraDB is a graph database built on object storage that stores decisions, facts, documents and relationships, including how they change over time, so AI agents can retrieve accurate connected context rather than merely similar passages. Compute for writes, indexing and reads scales separately, assisted graph creation organizes your data, and it works with Neo4j drivers and openCypher queries. The open-source edition is self-hostable, with a managed cloud for production workloads.

HydraDB website preview

Live preview of hydradb.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.

HydraDB: strengths & things to check

Strengths

Free tier available — you can start without paying (freemium model).
Covers graph database, open source, agent context, object storage — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

The full feature set sits behind a paid plan — check which limits the free tier carries on the official site before committing.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1009 tools in the Data & Analytics category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

HydraDB pricing

Pricing model	Freemium — a free tier lets you start, and paid plans are available if you need more.
Free access	Yes — free tier, paid upgrades available
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	hydradb.com

HydraDB key facts

Category: Data & Analytics
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: graph database, open source, agent context, object storage
Official site: hydradb.com

HydraDB FAQ

How much does HydraDB cost?

Freemium — a free tier lets you start, and paid plans are available if you need more. Current plans and prices are listed on the official site (hydradb.com).

What is HydraDB used for?

Fast graph database built on object storage, for modern agents Its focus areas in the Data & Analytics category: graph database, open source, agent context, object storage.

Where can I try HydraDB?

On its official site, hydradb.com — the Visit Official Site button above goes straight there.

HydraDB vs alternatives

	HydraDB	Airbyte	Apache Airflow	Apache Atlas
Pricing	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas	graph database, open source, agent context, object storage	etl, data integration, open source, data pipeline, connectors	orchestration, pipelines, open source	governance, metadata, open source
Official site	hydradb.com	airbyte.com	airflow.apache.org	atlas.apache.org
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Data & Analytics category

Analytics and BI platforms that turn raw data into clear insights. The Data & Analytics category on Tools Hub currently lists 1009 tools. Alongside HydraDB, it includes Anakin.io, Reducto, AskYourDatabase, Coginiti.

FreemiumData & Analyticsgraph-databaseopen-sourceagent-contextobject-storage

Alternatives to HydraDB

Tools in the same Data & Analytics category that share focus areas with HydraDB — worth comparing before you commit:

Data & Analytics

Airbyte

Open-source data integration, 600+ connectors.

Freemiumetldata-integrationopen-sourcedata-pipeline

Data & Analytics

Apache Airflow

Platform to programmatically author and schedule workflows

Freeorchestrationpipelinesopen-source

Data & Analytics

Apache Atlas

Metadata and governance for Hadoop ecosystems

Freegovernancemetadataopen-source

Data & Analytics

Apache Druid

Realtime analytics database for event data

Freerealtime-analyticsolapopen-source

Data & Analytics

Apache Flink

Stream processing framework for data pipelines

Freestream-processingrealtimeopen-source

Data & Analytics

Apache Kafka

Distributed event streaming platform

Freeevent-streamingmessagingopen-source

More in Data & Analytics

Comparing tools in the Data & Analytics category? These related listings are worth a look: Anakin.io — One API. The whole web, agent-ready; Reducto — The agentic document platform for AI teams; AskYourDatabase — Chat with your SQL database using AI.