Email on Acid · Open Collection

API Collection

Version
View on GitHub Raw JSON Email TestingEmail PreviewsEmail ClientsSpam TestingAccessibilityHTML ValidationEmail Quality AssurancePre-Deployment TestingOpen Collection

Overview

API Collection is a Open Collection published by Email on Acid on the APIs.io network.

Tagged areas include Email Testing, Email Previews, Email Clients, Spam Testing, and Accessibility.

Related API Specs

Email on Acid Authentication API (OpenAPI) Email on Acid Email Clients API (OpenAPI) Email on Acid Email Testing API (OpenAPI) Email on Acid Spam Testing API (OpenAPI)
Back to Email on Acid · All Collections · GitHub

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.
All 92 tools →

Call it yourself

curl for this page
This collection
curl "https://apis.io/api/v1/collections/open-.refine-report"
All collections
curl "https://apis.io/api/v1/collections?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.

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