--- title: Best Free APIs for Developers : The Complete,... description: This guide catalogs over 100 free APIs across categories like AI, weather, maps, finance, auth, email, payments, images, news, and sports. It splits free... canonical: https://daily.dev/posts/best-free-apis-for-developers-the-complete-categorized-list-htxf0l8zg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Best Free APIs for Developers : The Complete, Categorized List | daily.dev og:description: This guide catalogs over 100 free APIs across categories like AI, weather, maps, finance, auth, email, payments, images, news, and sports. It splits free... og:url: https://daily.dev/posts/best-free-apis-for-developers-the-complete-categorized-list-htxf0l8zg og:image: https://api.daily.dev/og/posts/HtxF0l8ZG.png og:image:alt: Best Free APIs for Developers : The Complete, Categorized List og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Best Free APIs for Developers : The Complete, Categorized List **[DEV](https://daily.dev/sources/devto)** · 9 min read · 2 upvotes · 0 comments ## Summary This guide catalogs over 100 free APIs across categories like AI, weather, maps, finance, auth, email, payments, images, news, and sports. It splits free offers into three types: no-auth open data, permanent free-tier-with-key, and time-boxed free trials, warning that trial credits are risky for production. Groq offers 14,400 free requests a day for LLM inference with no credit card. Open-Meteo needs no API key and has no hard rate limit for non-commercial use. ROIC.ai's free tier includes full endpoint access, limited only by rate and history depth, not features. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How many free requests per day does Groq's API allow for LLM inference? Groq's free tier allows 14,400 requests per day for fast LLM inference, with no credit card required to get started. It is described as one of the most generous genuinely free tiers for AI and LLM projects. OpenRouter is a better alternative if you want to compare multiple models through a single API key. _Comparing LLM providers before committing is easier with current API coverage on daily.dev._ ### Does Open-Meteo require an API key for weather data? No, Open-Meteo requires no API key and has no hard rate limit for non-commercial use. It covers current conditions, 7-day forecasts, historical weather, and air quality in a single response, making it the strongest free starting point for weather data integrations. _Developers picking a weather API for a side project can track free-tier changes on daily.dev._ ### Does ROIC.ai's free API tier limit which financial data endpoints you can access? No, ROIC.ai gives every plan, including the free one, full access to all tickers and every endpoint. The difference between paid and free plans is only rate limit and history depth, not feature access, so a side project can run on the free key hitting only a request volume ceiling rather than a feature wall. _Evaluating financial data APIs for a side project gets easier by tracking free-tier terms on daily.dev._ ## Similar posts on daily.dev - [20 Free APIs You Didn’t Know Existed](https://daily.dev/posts/20-free-apis-you-didn-t-know-existed-vnjuecirf) · Medium · 24 upvotes · 0 comments - [5 Secret Free AI Tools Every Developer & Tech Enthusiast Should Use in 2026](https://daily.dev/posts/5-secret-free-ai-tools-every-developer-tech-enthusiast-should-use-in-2026-zjt0pglku) · Medium · 0 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#productivity](https://daily.dev/tags/productivity), [#authentication](https://daily.dev/tags/authentication) [View this post on daily.dev](https://daily.dev/posts/best-free-apis-for-developers-the-complete-categorized-list-htxf0l8zg) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Best Free APIs for Developers : The Complete, Categorized List","url":"https://daily.dev/posts/best-free-apis-for-developers-the-complete-categorized-list-htxf0l8zg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/best-free-apis-for-developers-the-complete-categorized-list-htxf0l8zg"},"datePublished":"2026-10-28T19:11:20.878Z","dateModified":"2026-10-28T19:23:35.250Z","description":"This guide catalogs over 100 free APIs across categories like AI, weather, maps, finance, auth, email, payments, images, news, and sports. 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