The Centralized Authorization Data API from Oso Cloud — 6 operation(s) for centralized authorization data.
Every API here is available over the APIs.io API and to AI agents over MCP.
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.curl "https://apis.io/api/v1/apis/oso-centralized-authorization-data-api"curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
openapi: 3.2.0
info:
title: Oso Cloud HTTP Centralized Authorization Data API
version: 0.1.0
description: 'Oso Cloud exposes an HTTP API that you can use to make queries directly, without using one of the clients.For endpoints that require authentication, pass your API key as an HTTP Bearer Auth payload.For example, using curl: curl -H "Authorization: Bearer $OSO_AUTH" https://cloud.osohq.com/api/'
servers:
- url: https://api.osohq.com/api/
tags:
- name: Centralized Authorization Data
paths:
/facts:
post:
tags:
- Centralized Authorization Data
description: 'Adds a new fact.
DEPRECATED: Prefer `POST /batch` with payload `[{"inserts": [<fact>]}]`.'
operationId: post_facts
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/Fact'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/Fact'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
deprecated: true
security:
- ApiKey: []
x-codeSamples:
- lang: javascript
label: Node.js
source: "import { Oso } from 'oso-cloud';\n\nconst apiKey = process.env.OSO_CLOUD_API_KEY;\nconst oso = new Oso(\"https://cloud.osohq.com\", apiKey);\n\n// Insert a single fact\nawait oso.insert([\n \"has_role\", \n { type: \"User\", id: \"alice\" }, \n \"maintainer\", \n { type: \"Repository\", id: \"anvils\" }\n]);\n"
- lang: python
label: Python
source: 'import os
from oso_cloud import Oso, Value
oso = Oso(api_key=os.environ.get(''OSO_CLOUD_API_KEY'', None))
# Insert a single fact
user = Value("User", "alice")
repo = Value("Repository", "anvils")
oso.insert(("has_role", user, "maintainer", repo))
'
- lang: go
label: Go
source: "package main\n\nimport (\n \"log\"\n \"os\"\n oso \"github.com/osohq/go-oso-cloud/v2\"\n)\n\nfunc main() {\n apiKey := os.Getenv(\"OSO_CLOUD_API_KEY\")\n osoClient := oso.NewClient(\"https://cloud.osohq.com\", apiKey)\n\n // Insert a single fact\n alice := oso.NewValue(\"User\", \"alice\")\n repo := oso.NewValue(\"Repository\", \"anvils\")\n err := osoClient.Insert(oso.NewFact(\"has_role\", alice, oso.String(\"maintainer\"), repo))\n if err != nil {\n log.Fatal(err)\n }\n}\n"
- lang: java
label: Java
source: "package com.mycompany;\n\nimport java.io.IOException;\nimport com.osohq.oso_cloud.Oso;\nimport com.osohq.oso_cloud.api.ApiException;\nimport com.osohq.oso_cloud.api.Value;\n\npublic class App {\n public static void main(String[] args) {\n String apiKey = System.getenv(\"OSO_CLOUD_API_KEY\");\n Oso oso = new Oso(apiKey);\n \n try {\n // Insert a single fact\n Value user = new Value(\"User\", \"alice\");\n Value repo = new Value(\"Repository\", \"anvils\");\n oso.insert(\"has_role\", user, \"maintainer\", repo);\n } catch (IOException | ApiException e) {\n System.err.println(\"Error: \" + e.getMessage());\n }\n }\n}\n"
- lang: ruby
label: Ruby
source: 'require ''oso-cloud''
api_key = ENV.fetch(''OSO_CLOUD_API_KEY'', nil)
oso = OsoCloud::Oso.new(url: "https://cloud.osohq.com", api_key: api_key)
# Insert a single fact
user = OsoCloud::Value.new(type: "User", id: "alice")
repo = OsoCloud::Value.new(type: "Repository", id: "anvils")
oso.tell("has_role", user, "maintainer", repo)
'
- lang: csharp
label: C#
source: 'using OsoCloud;
string? apiKey = Environment.GetEnvironmentVariable("OSO_CLOUD_API_KEY");
var oso = new Oso("https://api.osohq.com", apiKey);
// Insert a single fact
var user = new Value("User", "alice");
var repo = new Value("Repository", "anvils");
await oso.Insert("has_role", user, "maintainer", repo);
'
delete:
tags:
- Centralized Authorization Data
description: 'Deletes a fact. Does not throw an error when the fact is not found.
DEPRECATED: Prefer `POST /batch` with payload `[{"deletes": [<fact>]}]`.'
operationId: delete_facts
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/Fact'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
deprecated: true
security:
- ApiKey: []
x-codeSamples:
- lang: javascript
label: Node.js
source: "import { Oso } from 'oso-cloud';\n\nconst apiKey = process.env.OSO_CLOUD_API_KEY;\nconst oso = new Oso(\"https://cloud.osohq.com\", apiKey);\n\n// Delete specific fact\nawait oso.delete([\n \"has_role\", \n { type: \"User\", id: \"alice\" }, \n \"maintainer\", \n { type: \"Repository\", id: \"anvils\" }\n]);\n\n// Delete using patterns (null = wildcard)\nawait oso.delete([\"has_role\", { type: \"User\", id: \"alice\" }, null, null]); // All roles for alice\n"
- lang: python
label: Python
source: 'import os
from oso_cloud import Oso, Value
oso = Oso(api_key=os.environ.get(''OSO_CLOUD_API_KEY'', None))
# Delete specific fact
user = Value("User", "alice")
repo = Value("Repository", "anvils")
oso.delete(("has_role", user, "maintainer", repo))
# Delete using patterns
oso.delete(("has_role", user, None, None)) # All roles for user
'
- lang: go
label: Go
source: "package main\n\nimport (\n \"log\"\n \"os\"\n oso \"github.com/osohq/go-oso-cloud/v2\"\n)\n\nfunc main() {\n apiKey := os.Getenv(\"OSO_CLOUD_API_KEY\")\n osoClient := oso.NewClient(\"https://cloud.osohq.com\", apiKey)\n\n// Delete specific fact\nuser := oso.NewValue(\"User\", \"alice\")\nrepo := oso.NewValue(\"Repository\", \"anvils\")\nerr := osoClient.Delete(oso.NewFact(\"has_role\", user, oso.String(\"maintainer\"), repo))\n\n// Delete using patterns\nerr = osoClient.Delete(oso.NewFactPattern(\n \"has_role\", \n user, \n nil, // Any role\n oso.NewValueOfType(\"Repository\") // Any repo\n))\n}\n"
- lang: java
label: Java
source: "package com.mycompany;\n\nimport java.io.IOException;\nimport com.osohq.oso_cloud.Oso;\nimport com.osohq.oso_cloud.api.ApiException;\nimport com.osohq.oso_cloud.api.Value;\n\npublic class App {\n public static void main(String[] args) {\n String apiKey = System.getenv(\"OSO_CLOUD_API_KEY\");\n Oso oso = new Oso(apiKey);\n \n try {\n // Delete specific fact\n Value user = new Value(\"User\", \"alice\");\n Value repo = new Value(\"Repository\", \"anvils\");\n oso.delete(\"has_role\", user, \"maintainer\", repo);\n \n // Delete using patterns (null = wildcard)\n oso.delete(\"has_role\", user, null, null); // All roles for user\n } catch (IOException | ApiException e) {\n System.err.println(\"Error: \" + e.getMessage());\n }\n }\n}\n"
- lang: ruby
label: Ruby
source: 'require ''oso-cloud''
api_key = ENV.fetch(''OSO_CLOUD_API_KEY'', nil)
oso = OsoCloud::Oso.new(url: "https://cloud.osohq.com", api_key: api_key)
# Delete specific fact
user = OsoCloud::Value.new(type: "User", id: "alice")
repo = OsoCloud::Value.new(type: "Repository", id: "anvils")
oso.delete("has_role", user, "maintainer", repo)
# Delete using patterns (nil = wildcard)
oso.delete("has_role", user, nil, nil) # All roles for user
'
- lang: csharp
label: C#
source: 'using OsoCloud;
string? apiKey = Environment.GetEnvironmentVariable("OSO_CLOUD_API_KEY");
var oso = new Oso("https://api.osohq.com", apiKey);
// Delete specific fact
var user = new Value("User", "alice");
var repo = new Value("Repository", "anvils");
await oso.Delete("has_role", user, "maintainer", repo);
// Delete using patterns (null = wildcard)
await oso.Delete("has_role", user, null, null); // All roles for user
'
/bulk_load:
post:
tags:
- Centralized Authorization Data
description: 'Adds many facts at once.
DEPRECATED: Prefer `POST /batch` with payload `[{"inserts": <bulk_data>}]`.'
operationId: post_bulk_load
requestBody:
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Fact'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
deprecated: true
security:
- ApiKey: []
/bulk_delete:
post:
tags:
- Centralized Authorization Data
description: 'Delete many facts in a single transaction.
DEPRECATED: Prefer `POST /batch` with payload `[{"deletes": <bulk_data>}]`.'
operationId: post_bulk_delete
requestBody:
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Fact'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
deprecated: true
security:
- ApiKey: []
/bulk:
post:
tags:
- Centralized Authorization Data
description: 'Deletes and adds many facts in one atomic transaction. The deletions are performed before the adds. `null` can be used as a wildcard in facts in delete. Does not throw an error when the facts to delete are not found.
DEPRECATED: Prefer `POST /batch` with payload `[{"deletes": <bulk.delete>}, {"inserts": <bulk.tell>}]`.'
operationId: post_bulk
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/Bulk'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
deprecated: true
security:
- ApiKey: []
/batch:
post:
tags:
- Centralized Authorization Data
description: 'Deletes and adds many facts in one atomic batch. Facts are inserted and deleted in-order (ie: `insert`ed facts may be `delete`d in the same transaction). `null` can be used as a wildcard in deleted facts. Does not throw an error when the facts to delete are not found.'
operationId: post_batch
requestBody:
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/FactChangeset'
required: true
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
security:
- ApiKey: []
x-codeSamples:
- lang: javascript
label: Node.js
source: "import { Oso } from 'oso-cloud';\n\nconst apiKey = process.env.OSO_CLOUD_API_KEY;\nconst oso = new Oso(\"https://cloud.osohq.com\", apiKey);\n\n// Batch multiple operations\nconst user = { type: \"User\", id: \"alice\" };\nconst org = { type: \"Organization\", id: \"acme\" };\nconst repo = { type: \"Repository\", id: \"anvils\" };\n\nawait oso.batch((tx) => {\n // Insert new facts\n tx.insert([\"has_role\", user, \"owner\", org]);\n tx.insert([\"has_permission\", user, \"admin\", repo]);\n \n // Delete old facts\n tx.delete([\"has_role\", user, \"maintainer\", repo]);\n tx.delete([\"has_role\", user, \"member\", org]);\n});\n"
- lang: python
label: Python
source: "import os\nfrom oso_cloud import Oso, Value\n\noso = Oso(api_key=os.environ.get('OSO_CLOUD_API_KEY', None))\n\n# Batch multiple operations\nuser = Value(\"User\", \"alice\")\norg = Value(\"Organization\", \"acme\")\nrepo = Value(\"Repository\", \"anvils\")\n\nwith oso.batch() as tx:\n # Insert new facts\n tx.insert((\"has_role\", user, \"owner\", org))\n tx.insert((\"has_permission\", user, \"admin\", repo))\n \n # Delete old facts\n tx.delete((\"has_role\", user, \"maintainer\", repo))\n tx.delete((\"has_role\", user, \"member\", org))\n"
- lang: go
label: Go
source: "package main\n\nimport (\n \"log\"\n \"os\"\n oso \"github.com/osohq/go-oso-cloud/v2\"\n)\n\nfunc main() {\n apiKey := os.Getenv(\"OSO_CLOUD_API_KEY\")\n osoClient := oso.NewClient(\"https://cloud.osohq.com\", apiKey)\n\n// Batch multiple operations\nuser := oso.NewValue(\"User\", \"alice\")\norg := oso.NewValue(\"Organization\", \"acme\")\nrepo := oso.NewValue(\"Repository\", \"anvils\")\n\nerr := osoClient.Batch(func(tx oso.BatchTransaction) {\n // Insert new facts\n tx.Insert(oso.NewFact(\"has_role\", user, oso.String(\"owner\"), org))\n tx.Insert(oso.NewFact(\"has_permission\", user, oso.String(\"admin\"), repo))\n \n // Delete old facts\n tx.Delete(oso.NewFact(\"has_role\", user, oso.String(\"maintainer\"), repo))\n tx.Delete(oso.NewFactPattern(\"has_role\", user, nil, org))\n})\nif err != nil {\n log.Fatal(err)\n}\n}\n"
- lang: java
label: Java
source: "package com.mycompany;\n\nimport java.io.IOException;\nimport com.osohq.oso_cloud.Oso;\nimport com.osohq.oso_cloud.api.ApiException;\nimport com.osohq.oso_cloud.api.Value;\n\npublic class App {\n public static void main(String[] args) {\n String apiKey = System.getenv(\"OSO_CLOUD_API_KEY\");\n Oso oso = new Oso(apiKey);\n \n try {\n // Batch multiple operations\n Value user = new Value(\"User\", \"alice\");\n Value org = new Value(\"Organization\", \"acme\");\n Value repo = new Value(\"Repository\", \"anvils\");\n \n oso.batch((tx) -> {\n // Insert new facts\n tx.insert(\"has_role\", user, \"owner\", org);\n tx.insert(\"has_permission\", user, \"admin\", repo);\n \n // Delete old facts\n tx.delete(\"has_role\", user, \"maintainer\", repo);\n tx.delete(\"has_role\", user, \"member\", org);\n });\n } catch (IOException | ApiException e) {\n System.err.println(\"Error: \" + e.getMessage());\n }\n }\n}\n"
- lang: ruby
label: Ruby
source: "require 'oso-cloud'\n\napi_key = ENV.fetch('OSO_CLOUD_API_KEY', nil)\noso = OsoCloud::Oso.new(url: \"https://cloud.osohq.com\", api_key: api_key)\n\n# Batch multiple operations\nuser = OsoCloud::Value.new(type: \"User\", id: \"alice\")\norg = OsoCloud::Value.new(type: \"Organization\", id: \"acme\")\nrepo = OsoCloud::Value.new(type: \"Repository\", id: \"anvils\")\n\noso.batch do |tx|\n # Insert new facts\n tx.tell(\"has_role\", user, \"owner\", org)\n tx.tell(\"has_permission\", user, \"admin\", repo)\n \n # Delete old facts\n tx.delete(\"has_role\", user, \"maintainer\", repo)\n tx.delete(\"has_role\", user, \"member\", org)\nend\n"
- lang: csharp
label: C#
source: "using OsoCloud;\n\nstring? apiKey = Environment.GetEnvironmentVariable(\"OSO_CLOUD_API_KEY\");\nvar oso = new Oso(\"https://api.osohq.com\", apiKey);\n\n// Batch multiple operations\nvar user = new Value(\"User\", \"alice\");\nvar org = new Value(\"Organization\", \"acme\");\nvar repo = new Value(\"Repository\", \"anvils\");\n\nawait oso.Batch(tx => {\n // Insert new facts\n tx.Insert(\"has_role\", user, \"owner\", org);\n tx.Insert(\"has_permission\", user, \"admin\", repo);\n \n // Delete old facts\n tx.Delete(\"has_role\", user, \"maintainer\", repo);\n tx.Delete(\"has_role\", user, \"member\", org);\n});\n"
/clear_data:
post:
tags:
- Centralized Authorization Data
operationId: clear_data
responses:
'200':
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiResult'
default:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/ApiError'
security:
- ApiKey: []
components:
schemas:
FactChangeset:
description: A grouped run of facts to insert or delete. Inserted facts must contain concrete fact args, but deleted facts may contain wildcards.
anyOf:
- type: object
required:
- inserts
properties:
inserts:
type: array
items:
$ref: '#/components/schemas/Fact'
- type: object
required:
- deletes
properties:
deletes:
type: array
items:
$ref: '#/components/schemas/Fact'
ApiResult:
type: object
required:
- message
properties:
message:
type: string
Fact:
description: 'A pattern object for matching authorization-relevant data, ie: facts.'
type: object
required:
- args
- predicate
properties:
predicate:
type: string
args:
type: array
items:
$ref: '#/components/schemas/Value'
Value:
type: object
properties:
type:
type:
- string
- 'null'
id:
type:
- string
- 'null'
Bulk:
type: object
required:
- delete
- tell
properties:
delete:
type: array
items:
$ref: '#/components/schemas/Fact'
tell:
type: array
items:
$ref: '#/components/schemas/Fact'
ApiError:
type: object
required:
- message
properties:
message:
type: string
securitySchemes:
ApiKey:
description: Requires an API key to access.
type: http
scheme: bearer
bearerFormat: Bearer e_0123_123_token0123