Document Database (3)

• What is MongoDB? - Database Manual - MongoDB Docs (mongodb.com) reference
  JSON-style document store: flexible schema, sharding, replica-set failover; server under SSPL
  Database Administration High Availability #
• Apache CouchDB (couchdb.apache.org) tool
  JSON document store with an HTTP API and a replication protocol reaching mobile and browsers
  HTTP Self Hosting #
• Arango Contextual Data Platform (Arango) tool
  graph-native multi-model store (document, key-value, search) pitched as an AI context layer, commercial
  Graph Database Key Value Store #