aid: oso
name: Oso Cloud
description: >-
  Oso Cloud is an authorization-as-a-service platform that provides a REST API
  for defining and enforcing relationship-based access control policies. It
  enables developers to model RBAC, ReBAC, and ABAC authorization patterns,
  manage authorization facts, and query permissions at runtime with sub-10ms
  latency and 99.99% availability.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/oso/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
type: Index
tags:
  - Authorization
  - Access Control
  - RBAC
  - ReBAC
  - ABAC
  - Permissions
  - Policy
  - Security
  - Identity
apis:
  - name: Oso Cloud Authorization API
    description: >-
      The Oso Cloud Authorization API provides REST endpoints for checking
      permissions, managing authorization facts, querying policies, and
      enforcing access control across applications and services. Core operations
      include authorize (boolean permission check), list (get authorized
      resources), actions (get allowed actions), query, and batch fact
      management. The API uses the Polar policy language for defining
      authorization logic and supports context facts for request-time data.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://api.osohq.com/api
    humanURL: https://www.osohq.com/docs
    properties:
      - type: Documentation
        url: https://www.osohq.com/docs
      - type: OpenAPI
        url: https://www.osohq.com/docs/reference/api
      - type: OpenAPI
        url: openapi/oso-authorization-openapi.yml
      - type: Authentication
        url: https://www.osohq.com/docs/app-integration/oso-cloud-configuration/api-keys
    contact:
      - FN: Oso Cloud Support
        url: https://www.osohq.com/company/contact
    tags:
      - Authorization
      - Permissions
      - Access Control
      - Policy Management
      - Facts
      - RBAC
      - ReBAC
common:
  - type: Website
    url: https://www.osohq.com
  - type: Documentation
    url: https://www.osohq.com/docs
  - type: GitHubOrg
    url: https://github.com/osohq
  - type: LinkedIn
    url: https://www.linkedin.com/company/osohq
  - type: Blog
    url: https://www.osohq.com/blog
  - type: Pricing
    url: https://www.osohq.com/pricing
  - type: StatusPage
    url: https://oso.statuspage.io/
  - type: X
    url: https://x.com/osohq
  - type: Changelog
    url: https://www.osohq.com/docs/changelog/whats-new
  - type: Plans
    url: plans/oso-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/oso-rate-limits.yml
  - type: FinOps
    url: finops/oso-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com