Overview
Mastodon Instances API is a Open Collection published by Mastodon Instances on the APIs.io network, version 1.0.0.
The collection contains 6 requests.
Tagged areas include Fediverse, Mastodon, Search, and Social.
Requests & Folders
Get a random sample of instances
List instances with rich filtering
Search instances by name, topic, or description
Show information about a specific instance
List Mastodon versions seen across the network
Show information about a specific Mastodon version
Related API Specs
Work with this as data
Every collection here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for collections
4 MCP tools reach this
find_collectionsBrowse and filter every collection in the catalog.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.
Call it yourself
curl for this page
This collection
curl "https://apis.io/api/v1/collections/open-mastodon-instances"
All collections
curl "https://apis.io/api/v1/collections?limit=25"Discovery needs no key. Ratings and market analysis are Pro.