Citus Data

aid: citus-data
name: Citus Data
x-parent: microsoft
description: Citus Data is the company behind Citus, an open source extension that turns PostgreSQL into a distributed database.
  Rather than forking Postgres, Citus adds sharding, distributed tables, reference tables, and a distributed query planner
  so applications can scale out across many nodes while keeping full SQL, ACID transactions, and the entire Postgres ecosystem.
  It is used for multi-tenant SaaS applications, real-time analytics dashboards, and microservices architectures. Founded
  in San Francisco and acquired by Microsoft in 2019, Citus is developed in the open on GitHub and is also offered as a managed
  cloud service (Azure Cosmos DB for PostgreSQL); its reference documentation is hosted on Microsoft Learn. Citus is consumed
  over the standard PostgreSQL wire protocol and SQL, so it exposes no REST/HTTP API, no OAuth surface, and no language SDKs
  of its own.
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: none
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://avatars.githubusercontent.com/u/2545424?s=200&v=4
url: https://raw.githubusercontent.com/api-evangelist/citus-data/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- dcvc
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-05 (local-v6; was portfolio-lead)
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-11-05'
tags:
- Company
- PostgreSQL
- Database
- Distributed Database
- Sharding
- Open Source
- Scalability
- Analytics
- Microsoft
tags_raw:
- Company
- PostgreSQL
- Database
- Distributed Database
- Sharding
- Open Source
- Scalability
- Analytics
- Microsoft
- Open-Source
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/citus-data-plans-pricing.yml
- type: ChangeLog
  url: changelog/citus-data-changelog.yml
- type: SecurityTxt
  url: well-known/citus-data-apis-security.txt
- type: WellKnown
  url: well-known/citus-data-well-known.yml
- type: Hosts
  url: hosts/citus-data-hosts.yml
- type: IntegrationEdges
  url: integrations/citus-data-integration-edges.yml
- type: Vendors
  url: vendors/citus-data-vendors.yml
- type: SDKs
  url: packages/citus-data-packages.yml
- type: Security
  url: https://www.citusdata.com/blog/tags/security/
- type: Newsroom
  url: https://www.citusdata.com/newsroom/press/
- type: APIReference
  url: https://docs.citusdata.com/en/v13.0/reference/common_errors.html
- url: https://www.citusdata.com/feed.xml
  type: BlogRSS
- type: ParentCompany
  url: https://apis.io/providers/microsoft/
  name: Microsoft
  x-relationship: acquired
  x-evidence: Founded in San Francisco and acquired by Microsoft in 2019, Citus is developed in the open on GitHub and is
    also offered as a managed cloud service (Azure Cosmos DB for PostgreSQL); its reference documentation is hosted on Microsoft
    Learn.
- type: DomainSecurity
  url: security/citus-data-domain-security.yml
- type: Website
  url: https://www.citusdata.com/
  name: Citus Data
- type: Documentation
  url: https://learn.microsoft.com/postgresql/citus/
  name: Citus Documentation (Microsoft Learn)
- type: DeveloperPortal
  url: https://www.citusdata.com/product/
  name: Citus Product
- type: GettingStarted
  url: https://www.citusdata.com/getting-started/
  name: Getting Started with Citus
- type: GitHubOrganization
  url: https://github.com/citusdata
  name: citusdata on GitHub
- type: Blog
  url: https://www.citusdata.com/blog/
  name: Citus Data Blog
- type: Support
  url: https://www.citusdata.com/support
  name: Citus Support
- type: ChangeLog
  url: https://github.com/citusdata/citus/blob/main/CHANGELOG.md
  name: Citus CHANGELOG
- type: Download
  url: https://www.citusdata.com/download/
  name: Download Citus
- type: Packages
  url: packages/citus-data-packages.yml
  name: Citus distribution packages
- type: Pricing
  url: https://www.citusdata.com/pricing
  name: Citus Pricing
- type: PrivacyPolicy
  url: https://www.citusdata.com/privacy
  name: Privacy Statement
- type: FAQ
  url: https://www.citusdata.com/faq
  name: Citus FAQ
apis: []
x-enrichment:
  date: '2026-11-05'
  status: minimal
  artifacts_added: 2
  pass: local-v6
x-coverage:
  state: none
  reason: no-developer-program
  detail: Citus is a PostgreSQL extension consumed over the Postgres wire protocol and SQL; citusdata.com and docs.citusdata.com
    publish no HTTP API, OpenAPI, llms.txt or MCP surface.
  evidence:
  - url: https://www.citusdata.com/
    status: 200
  - url: https://www.citusdata.com/llms.txt
    status: 404
  - url: https://docs.citusdata.com/llms.txt
    status: 404
  checked: '2026-11-05'