Curated Database of 837+ Verified Public APIs & Tooling for Developers

piriyaraj — Thu, 05 Nov 2026 05:36:17 +0000

Building MVPs, side projects, or developer tools almost always requires finding and integrating third-party APIs. However, most public API lists online are filled with dead links, unmaintained endpoints, or lack critical technical details like whether authentication is required or if CORS is supported.

To solve this, I compiled and verified a structured database of 837+ public APIs and developer datasets across 50+ categories.

What's in the Collection?

Each endpoint in the directory has been indexed with explicit technical parameters:

Category: AI & Machine Learning, Cloud Services, Financial Markets, Geolocation, Security, etc.
Authentication: apiKey, OAuth, User-Agent, or No Auth (instant prototyping)
CORS Support: Explicitly checked so frontend single-page apps (React, Vue, Svelte) don't get blocked
HTTPS: Verified encryption support
Official Documentation Link: Direct landing page for developer specs

Key Categories & Featured Endpoints

1. Machine Learning & AI

AniList API: High-performance GraphQL API for media and recommendation metadata.
Open-Meteo: Open-source weather forecasting API with no API key requirement.
Hugging Face Inference: REST endpoints for NLP and generative tasks.

2. Security & Verification

AbuseIPDB: Fast IP reputation querying and cyber threat intelligence.
HaveIBeenPwned API: Credential breach verification for user security systems.

3. Data & Utilities

REST Countries: Standardized ISO country codes, currencies, and geographic bounding boxes.
ExchangeRate-API: Real-time currency conversions and historical rates.

Live Interactive Directory & Datasets

You can search, filter, and explore the directory live on the web:
👉 Live Web Showcase & Directory

If you are building an offline project, internal company tooling, or importing the data into Google Sheets, Airtable, or LLM embeddings, you can also download the complete raw dataset bundles (CSV + JSON) on Gumroad:

What categories or endpoints would you like to see added next? Drop your thoughts or project links in the comments below!