reqistry-dev Categories API
Browse and list API categories
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OpenAPI Specification
openapi: 3.2.0
info:
title: Public APIs — Mobile Client Categories API
description: 'API reference for the Public APIs Flutter mobile app. Includes anonymous device auth, email/password account linking, profile management, bookmarks, folders, discovery, categories, search, and legacy JSON endpoints.
## Authentication
Bearer-protected endpoints require:
```
Authorization: Bearer
```
Tokens are obtained via `POST /v1/auth/anonymous` or `POST /v1/auth/login-email`.
Public endpoints (no token required): `POST /submit`, `POST /v1/apis` (auth optional, enables submission attribution), `POST /v1/auth/anonymous`, `POST /v1/auth/refresh`, `POST /v1/auth/revoke`, `POST /v1/auth/login-email`, `GET /v1/recently-added`, `GET /v1/recommend` (auth optional, personalizes with bookmarks), `GET /v1/apis/{slug}`, `GET /v1/apis/{id}/alternatives`, `GET /v1/trust-scores/{id}`, `GET /v1/apis/compare`, `GET /v1/change-feed`, `GET /v1/use-case-collections`, categories (unversioned and `/v1` aliases), `GET /search`, `GET /metadata`, `POST /track`, and `POST /admin/v1/contact-messages`. Every other `/v1/*` operation requires a Bearer token.
## Account Types
- **Anonymous**: Device-only, no email. Data tied to device fingerprint.
- **Email-linked**: Has email + password. Can login from any device. Data merges on link.
## Token Lifecycle
- **Access token**: 15 minutes, used for API requests
- **Refresh token**: 30 days, used to rotate access tokens
- Refreshing a token invalidates the old one (single-use rotation)
- Revoking deactivates all tokens for a device'
version: 1.0.0
contact:
name: Public APIs
url: '---'
servers:
- url: http://localhost:4000
description: Local development
- url: '---'
description: Production
tags:
- name: Categories
description: Browse and list API categories
paths:
/categories:
get:
tags:
- Categories
summary: List all categories
description: Returns all active categories with API counts, tags, trending status, descriptions, and image URLs.
operationId: getCategories
responses:
'200':
description: Category list
content:
application/json:
schema:
$ref: '#/components/schemas/CategoriesResponse'
/categories/{id}:
get:
tags:
- Categories
summary: Get single category
description: Returns full details for a single category by slug, including description, imageUrl, tags, apiCount, and isTrending.
operationId: getCategory
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug (e.g. ai, finance, weather)
responses:
'200':
description: Category details
content:
application/json:
schema:
$ref: '#/components/schemas/CategoryDetail'
'404':
description: Category not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/categories/{id}/image:
get:
tags:
- Categories
summary: Get category image URL
description: Returns the banner/image URL for a category. Returns 404 if no image is set.
operationId: getCategoryImage
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug
responses:
'200':
description: Image URL
content:
application/json:
schema:
type: object
properties:
imageUrl:
type: string
format: uri
'404':
description: Category not found or no image available
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/categories/{id}/apis:
get:
tags:
- Categories
summary: List APIs in a category
description: Returns all published APIs for a specific category. Paginated.
operationId: getCategoryApis
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug
- name: page
in: query
schema:
type: integer
minimum: 1
default: 1
description: Page number
- name: limit
in: query
schema:
type: integer
minimum: 1
maximum: 100
default: 20
description: Results per page
responses:
'200':
description: APIs in category
content:
application/json:
schema:
$ref: '#/components/schemas/CategoryApisResponse'
'404':
description: Category not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/trendy-categories:
get:
tags:
- Categories
summary: Trendy categories
description: Returns trending category names.
operationId: getTrendyCategories
responses:
'200':
description: Trendy category names
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
type: string
/v1/categories:
get:
tags:
- Categories
summary: List all categories
description: Returns all active categories with API counts, tags, trending status, descriptions, and image URLs.
operationId: getV1Categories
responses:
'200':
description: Category list
content:
application/json:
schema:
$ref: '#/components/schemas/V1CategoriesResponse'
/v1/categories/{id}:
get:
tags:
- Categories
summary: Get single category
description: Returns full details for a single category by slug, including description, imageUrl, tags, apiCount, and isTrending.
operationId: getV1Category
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug (e.g. ai, finance, weather)
responses:
'200':
description: Category details
content:
application/json:
schema:
$ref: '#/components/schemas/CategoryDetail'
'404':
description: Category not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/categories/{id}/apis:
get:
tags:
- Categories
summary: List APIs in a category
description: Returns all published APIs for a specific category. Paginated.
operationId: getV1CategoryApis
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug
- name: page
in: query
schema:
type: integer
minimum: 1
default: 1
description: Page number
- name: limit
in: query
schema:
type: integer
minimum: 1
maximum: 100
default: 20
description: Results per page
responses:
'200':
description: APIs in category
content:
application/json:
schema:
$ref: '#/components/schemas/CategoryApisResponse'
'404':
description: Category not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/categories/{id}/image:
get:
tags:
- Categories
summary: Get category image URL
description: Returns the banner/image URL for a category. Returns 404 if no image is set.
operationId: getV1CategoryImage
parameters:
- name: id
in: path
required: true
schema:
type: string
description: Category slug
responses:
'200':
description: Image URL
content:
application/json:
schema:
type: object
properties:
imageUrl:
type: string
format: uri
'404':
description: Category not found or no image available
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
components:
schemas:
Error:
type: object
properties:
error:
type: string
required:
- error
LegacyApiItem:
type: object
description: Legacy API item format (from discovery or search results)
properties:
id:
type: string
description: API UUID
slug:
type: string
description: Stable URL slug for this API. Use this when building /v1/apis/{slug} links instead of deriving from name.
name:
type: string
description:
type: string
auth:
type: string
description: Auth type name
https:
type: string
description: 'HTTPS support as string: ''true'' or ''false'''
cors:
type: string
description: 'CORS status: Yes, No, Unknown'
link:
type: string
format: uri
imageUrl:
type: string
format: uri
nullable: true
description: Custom image URL set in the dashboard
category:
type: string
apiType:
type: string
description: 'API protocol: REST, GraphQL, etc.'
pricing:
type: string
description: 'Pricing type: Free, Freemium, Paid'
rateLimit:
type: string
documentation:
type: string
format: uri
isAlive:
type: boolean
responseTime:
type: number
description: Response time in ms, -1 if dead
statusCode:
type: integer
nullable: true
lastChecked:
type: string
format: date-time
CategoryDetail:
type: object
properties:
id:
type: string
description: Category slug (used as ID)
name:
type: string
description: Display name
description:
type: string
description: Category description
imageUrl:
type: string
format: uri
nullable: true
description: Banner/image URL
apiCount:
type: integer
description: Number of published APIs in this category
tags:
type: array
items:
type: string
description: Searchable tags
isTrending:
type: boolean
description: Whether this category is currently trending
CategoriesResponse:
type: object
properties:
categories:
type: array
items:
$ref: '#/components/schemas/CategoryDetail'
CategoryApisResponse:
type: object
properties:
count:
type: integer
total:
type: integer
page:
type: integer
limit:
type: integer
totalPages:
type: integer
data:
type: array
items:
$ref: '#/components/schemas/LegacyApiItem'
V1CategoriesResponse:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/CategoryDetail'
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: JWT
description: Anonymous device access token from POST /v1/auth/anonymous