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.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/mastodon-instances-instances-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

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.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Mastodon Instances API
  version: 1.0.0
  description: 'The instances.social API allows searching for and retrieving information

    about Mastodon server instances, including user counts, language,

    software version, uptime statistics, content moderation policies, and

    supported features.

    '
  contact:
    name: instances.social
    url: https://instances.social
servers:
- url: https://instances.social/api/1.0
  description: Production
security:
- BearerAuth: []
tags:
- name: Instances
paths:
  /instances/sample:
    get:
      summary: Get a random sample of instances
      operationId: getInstancesSample
      parameters:
      - in: query
        name: count
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 20
      - in: query
        name: include_dead
        schema:
          type: boolean
          default: false
      responses:
        '200':
          description: A list of sampled instances.
      tags:
      - Instances
  /instances/list:
    get:
      summary: List instances with rich filtering
      operationId: listInstances
      parameters:
      - in: query
        name: count
        schema:
          type: integer
          minimum: 0
          maximum: 10000
          default: 20
        description: 0 returns all instances.
      - in: query
        name: include_dead
        schema:
          type: boolean
          default: false
      - in: query
        name: include_down
        schema:
          type: boolean
          default: true
      - in: query
        name: include_closed
        schema:
          type: boolean
          default: true
      - in: query
        name: supported_features
        schema:
          type: string
        description: Comma-separated list of required features.
      - in: query
        name: min_version
        schema:
          type: string
      - in: query
        name: min_users
        schema:
          type: integer
      - in: query
        name: max_users
        schema:
          type: integer
      - in: query
        name: min_active_users
        schema:
          type: integer
      - in: query
        name: category
        schema:
          type: string
      - in: query
        name: language
        schema:
          type: string
      - in: query
        name: prohibited_content
        schema:
          type: array
          items:
            type: string
      - in: query
        name: allowed_content
        schema:
          type: array
          items:
            type: string
      - in: query
        name: min_id
        schema:
          type: string
      - in: query
        name: sort_by
        schema:
          type: string
          enum:
          - name
          - uptime
          - https_score
          - obs_score
          - users
          - statuses
          - connections
          - active_users
      - in: query
        name: sort_order
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      responses:
        '200':
          description: A list of instances.
      tags:
      - Instances
  /instances/search:
    get:
      summary: Search instances by name, topic, or description
      operationId: searchInstances
      parameters:
      - in: query
        name: q
        required: true
        schema:
          type: string
      - in: query
        name: count
        schema:
          type: integer
          minimum: 0
          maximum: 10000
          default: 20
      - in: query
        name: name
        schema:
          type: boolean
          default: false
        description: Only search through instance names.
      responses:
        '200':
          description: Search results.
      tags:
      - Instances
  /instances/show:
    get:
      summary: Show information about a specific instance
      operationId: showInstance
      parameters:
      - in: query
        name: name
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Instance details.
      tags:
      - Instances
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'API token obtained from https://instances.social/api/token,

        passed as `Authorization: Bearer {token}`.

        '