# apple/foundationdb

FoundationDB - the open source, distributed, transactional key-value store

Repository: https://github.com/apple/foundationdb
Canonical: https://ross.abutalabs.com/products/foundationdb
Homepage: https://apple.github.io/foundationdb/
Language: C++
License: Apache-2.0
License Family: permissive
Topics: key-value-store, transactional, acid, distributed-database, foundationdb
Last push: 2026-08-26T23:26:08+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 68, longevity 100
- inputs: {"age_days": 3185, "days_push": 7, "days_rel": 139, "gap_med": 59, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 16647, forks 1555 (observed 2026-08-28T04:11:16.908262+00:00)

## What it is
FoundationDB is an open-source distributed database from Apple that organizes data as an ordered key-value store with full ACID transactional guarantees across clusters of commodity servers. It is designed for high read/write workloads and is accessed via language API bindings (Python, Java, Go, Ruby, C).

## Use cases
- store large volumes of structured data across a cluster with ACID guarantees
- build a scalable ordered key-value store for read/write workloads
- implement layers like queues, indexes, and document stores on a transactional core
- run a fault-tolerant database that survives node failures
- back metadata or state services that need strict consistency

## When to choose
- you need strict ACID transactions over distributed key-value data
- you want a proven, simulation-tested store used in production at scale
- you need to build higher-level data models (indexes, queues) on a minimal transactional core

## When to avoid
- you need rich queries, joins, or SQL semantics out of the box
- you want a small single-node embedded store
- your team cannot operate a multi-node cluster with specialized administration

## Facets
- artifact type: service
- maturity: stable
- function: database, caching
- domain: databases, microservices, backend, developer-tools
- platform: windows, cross-platform, self-hosted
- tags: key-value-store, acid-transactions, distributed-database, nosql, fault-tolerance, linux, macos

## Member repositories
- apple/foundationdb (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:16.908262+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 2026-08-29T17:04:49.619705+00:00, confidence not recorded.
  - readme: https://github.com/apple/foundationdb (fetched 2026-08-28T04:11:16.908262+00:00, sha 1923b0f85439)
  - homepage: https://apple.github.io/foundationdb/ (fetched 2026-08-29T08:02:01.389830+00:00, sha c6159b263055)
- Data as of 2026-08-30T08:39:29.467469+00:00.