hashintel/hash

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1649 stars · 122 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

HASH is an open-source, multi-tenant platform for building self-maintaining knowledge graphs and process graphs, powered by the hgres graph engine, the SemType semantic type system, and the HashQL query language. It ingests structured and unstructured data into a bitemporal, provenance-aware graph, with AI agents that grow, check, and maintain the database, plus simulation tooling (Petrinaut) and a web UI for browsing entities and types.

Use cases

• build a self-updating knowledge graph from documents and databases
• integrate and reconcile data from multiple sources into semantic entities
• model business processes and run simulations on a typed graph
• track when facts happened and when they became known (bitemporal data)
• let AI agents maintain and structure a shared source of truth
• browse and edit typed entities and schemas visually
• build decision-support tools on top of a provenance-aware graph

When to choose

• you need a multi-temporal, provenance-aware graph as a source of truth
• you want AI agents to automatically ingest, reconcile, and maintain data
• you need semantic type contracts shared across systems and AI agents
• you want to model and simulate concurrent processes (Petri nets, world models)

When to avoid

• you just need a simple relational or document database
• you want a lightweight embedded graph library rather than a full platform
• you need a mature, widely-adopted product with a large external contributor community
• you require a permissive standard open-source license (license is non-standard)

Facets

application · maturity active

database type-system search-engine agent-framework simulation nlp web-framework databases artificial-intelligence simulation self-hosted developer-tools self-hosted rust cross-platform knowledge-graph semantic-types bitemporal multi-tenant process-graph world-models entity-extraction data-integration graph-engine hashql semtype petri-net decision-support graph-processing knowledge-graphs data-engineering web-server typescript docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="hashintel/hash")