Feature

CORS Support

Browser-callable endpoints with CORS headers.

8 providers 20 APIs 5 declared variants

CORS headers permit direct calls from browser JavaScript without a proxy. Decides whether a frontend can integrate without standing up backend infrastructure.

8 API providers on the APIs.io network offer cors support. The highest-rated are Highlight (highlight.io), Amazon MediaStore, ReqRes, JSONPlaceholder, Frankfurter.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 2 Solid coverage with minor gaps

Highlight (highlight.io) Highlight (highlight.io) is the open-source, full-stack monitoring platform — session replay, error monitor... 7 APIs 68.0 Amazon MediaStore AWS Elemental MediaStore is an AWS storage service optimized for media, providing the performance, consiste... 1 API 61.4

Developing 1 Usable, with meaningful gaps to close

ReqRes ReqRes (reqres.in) is a hosted REST API originally launched by Ben Howdle as a free no-auth fake-API surfac... 1 API 51.3

Thin 4 Limited public surface area

JSONPlaceholder JSONPlaceholder is a free, no-auth fake REST API for prototyping, tutorials, and testing. It exposes six re... 1 API 41.6 Frankfurter Frankfurter is an open-source (MIT) currency exchange rates API that blends foreign-exchange reference rate... 2 APIs 41.0 Ron Swanson Quotes A community-built, open source HTTP API that returns Ron Swanson quotes from the NBC television series Park... 1 API 38.2 Numbers API Numbers API by David Hu and Mack Duan — a free, community-contributed HTTP API for interesting facts about ... 1 API 33.1

Emerging 1 Early or largely undocumented

CMA CGM CMA CGM is a Marseille-headquartered French container shipping, logistics, and port operator and the third-... 6 APIs 16.3

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

CMA Média portfolio includes La Provence, Corse-Matin, La Tribune, BFM-RMC, BrutCORS EnabledCORS SupportOpen CORSSession replay built on rrweb with canvas, iframe, and cross-origin support

Scroll for all 5