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Free Public APIs

A collective list of free APIs for use in software and web development.

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Curated

> GET /v1/stream200 OK

{

"status": "connected",

"latency": "12ms",

"payload": "stream:ready"

}

REST & Streaming API

The definitive collection of free public APIs across machine learning, data, finance, development, analytics, and more.

An indispensable directory for engineers, founders, and growth marketers building data-driven workflows and integrations without recurring subscription costs.

What's inside

0150+ API categories
02Authentication & CORS filters
03Regularly updated open list

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All resources

> GET /v1/stream200 OK

{

"status": "connected",

"latency": "12ms",

"payload": "stream:ready"

}

REST & Streaming API

APIsAPI Proxy

Free LLM API Gateway

Unified free API proxy providing direct access to top LLM models and providers.

API GatewayView

> GET /v1/stream200 OK

{

"status": "connected",

"latency": "12ms",

"payload": "stream:ready"

}

REST & Streaming API

APIsPDF Guide

Free LLM API Resource Directory

Curated reference of free and trial-credit LLM inference APIs with verified, clickable links and rate limits.

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