Useful APIs, filtered like a product gallery instead of a docs graveyard.

apis.onl is a clean API directory with the filters developers actually care about: free, auth required, REST vs GraphQL, and practical categories like AI, finance, weather, and scraping.

Explore featured API Browse GraphQL

Featured API

OpenRouter

One endpoint for multiple model providers, fast experimentation, and model routing.

Protocol

Rest

Pricing

Free to start, usage-based billing

Free Auth Required REST GraphQL AI Finance Weather Scraping

API gallery

Filter by what matters: price, auth, protocol, category.

Apollo Demo GraphQL DeveloperTools GraphQl

CountriesNow GraphQL

Simple GraphQL access to country and metadata lookups.

Free

A clean GraphQL entry for demos, internal tools, and flexible query testing.

Auth

Not required

Rate limit

Public endpoint

Best for

GraphQL demos and metadata lookups

#graphql #countries #demo-data #metadata

Free

Open API

How to browse

Solo developers and prototype builders

Start with free APIs, then tighten by auth

If you are exploring quickly, begin with `free` and decide later whether requiring auth is acceptable for the integration you keep.

Teams comparing integration styles

Use protocol as a product choice, not trivia

REST is usually the fastest path for operational APIs. GraphQL earns its place when clients genuinely need flexible field selection.

Search, growth, and data teams

Scraping APIs should remove ops work

A good scraping-adjacent API should save you from running proxy fleets, retries, and bot-evasion plumbing just to get structured data.