Best API Apps (Freemium) in 2026
182 freemium api products, ranked by community upvotes.
Gemini 2.0 Flash
Google's fastest multimodal AI with 1M token context
Wauld
Design, issue, and verify secure digital certificates and badges
Antwork
Generate, schedule, and publish social posts using your existing AI
Trackee
SEO & AI visibility API — track rankings, mentions and share of voice across search and LLMs.
Open Analytics
Privacy-first, cookieless Google Analytics alternative — realtime, open-source, self‑hostable
tweet.md
Turn X/Twitter posts, threads, Articles, and profiles into clean, LLM-ready Markdown.
Drumbeats
Cron & uptime monitoring with heartbeat alerts
UptimeBoss
Monitor websites, APIs, SSLs and private services — catch outages fast.
Postly
AI-powered social & blog scheduler with CRM, bio pages, and analytics
SocialCrawl
Universal social media scraper API for 46 platforms — one schema, 374 endpoints
OtaKit
Instant over-the-air updates for Capacitor apps — open source & self-hostable.
InitSignal
Real-time new-user and paid-app revenue tracking for iOS and macOS
UserWants
One-line feedback widget that captures screenshots, console errors and browser context.
MotifIcons
337K+ open-source icons, restyled to your design and exported to any stack.
AltTextLab
AI-generated, WCAG-compliant alt text to boost accessibility and image SEO.
MeruBot
AI-powered interview and assessment platform to streamline hiring
CrawlPanel
Monitor websites, APIs and user journeys with step-level screenshots and actionable alerts
BillHog
Let customers self-generate compliant invoices from your Stripe payments
Servv AI
Sell appointments, events and digital experiences on Shopify, WordPress or a hosted store.
Domainyze
Domain monitoring and drop-tracking with DNS, SSL, WHOIS alerts and webhooks.
Snill.ai
Create and run custom business systems by conversation — no code.
Rilavek
Managed file transfer to cloud storage with zero-knowledge streaming and protocol support
KaiMail
Developer-first custom domain email forwarding with webhooks and SMTP
Unified.to
Real-time unified API and MCP platform for connecting business systems