# eBay/akutan

A distributed knowledge graph store

Repository: https://github.com/eBay/akutan
Canonical: https://ross.abutalabs.com/products/akutan
Language: Go
License: Apache-2.0
License Family: permissive
Topics: go, graph, rdf, sparql
Archived: true
Last push: 2019-07-18T23:39:49+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2708, "days_push": 2603, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1651, forks 104 (observed 2026-08-28T04:05:16.887645+00:00)

## What it is
Akutan is a distributed knowledge graph store (RDF/triple store) written in Go, designed to hold large graphs that don't fit on a single server. It supports SPARQL-style querying, transactional updates, and historical snapshots, serializing writes through a central log.

## Use cases
- store and query a large RDF knowledge graph across multiple servers
- run rich graph queries over billions of interconnected facts
- power real-time interfaces backed by a knowledge graph
- complement machine learning applications with structured knowledge
- explore historical snapshots of a graph over time

## When to choose
- your graph data is too large for a single-server triple store
- you need transactional updates and historical global snapshots
- your write rate is modest (tens of thousands of changes per second)

## When to avoid
- you need production-critical reliability - it's explicitly not production-ready
- you need very high write throughput that scales with cluster size
- you prefer property graph or SQL data models over RDF triples

## Facets
- artifact type: service
- maturity: experimental
- function: database, search-engine, rpc, serialization
- domain: databases, big-data, microservices
- platform: go, cloud
- tags: knowledge-graph, rdf-store, triple-store, sparql, distributed-database, search, linux, docker

## Member repositories
- eBay/akutan (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:16.887645+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:45:01.869270+00:00, confidence not recorded.
  - readme: https://github.com/eBay/akutan (fetched 2026-08-28T04:05:16.887645+00:00, sha 55ee447bd141)
- Data as of 2026-08-30T08:39:29.467469+00:00.