Clean directory 4 APIs shown

apis.onl

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.

OpenRouter Ai Rest

OpenRouter

Unified AI API access across dozens of frontier and open models.

Free

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

Auth

Required

Rate limit

Provider-dependent quotas

Best for

LLM prototyping and model routing

#chat #completions #agents #multi-model

Free to start, usage-based billing

Open API

Alpha Vantage Finance Rest

Alpha Vantage

Market data, stock time series, forex, and indicators in one familiar API.

Free

A practical finance API for dashboards, alerts, and lightweight quant experiments.

Auth

Required

Rate limit

Free tier rate limits apply

Best for

Stock dashboards and indicator workflows

#stocks #forex #crypto #indicators

Free tier available

Open API

Open-Meteo Weather Rest

Open-Meteo

Free weather forecasts without API keys for common use cases.

Free

Fast onboarding for weather widgets, trip tools, and automation flows.

Auth

Not required

Rate limit

Public fair-use expectations

Best for

Weather widgets and trip tools

#forecast #geocoding #temperature #precipitation

Free

Open API

SerpApi Scraping Rest

SerpApi

Search engine result data without managing rotating proxies yourself.

Paid

A practical scraping-adjacent API for SERP extraction and rank tracking.

Auth

Required

Rate limit

Plan-based request allowance

Best for

SEO, search intelligence, research workflows

#google #search-results #seo #rank-tracking

Paid with trial credits

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.