Top Open Source Projects using Vercel Functions
A curated collection of the 22 best free and open-source projects built using Vercel Functions. Discover popular repositories, architecture patterns, and trending software in 2026.
Spanlens
MITDrop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
Papermark
NOASSERTIONSecure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.
Hexclave
NOASSERTIONSelf-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.
Contentport
AGPL-3.0Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.
Comma
AGPL-3.0Free site builder to create a personal website with articles, projects, email capture, and analytics. Open source, fast, and beautifully designed.
WR.DO
MITWR.DO offers free domain name distribution and short URL generation, built on Cloudflare's infrastructure for reliability and speed.
Slugy
MITOpen-source URL shortener with analytics, custom domains, QR codes, and link-in-bio pages. Create branded short links with detailed tracking insights.
Scira
AGPL-3.0Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.
Rallly
AGPL-3.0A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
Rakazo
Apache-2.0Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.
Proxed AI
AGPL-3.0A secure proxy service that protects AI API keys using Apple DeviceCheck, enabling safe integration of ChatGPT, Claude, and other AI models in iOS apps
LobeChat
NOASSERTIONA collaborative platform to create, schedule, and operate AI agents that handle long-running tasks, team workflows, and automated jobs without constant oversight.
Linky
MITBuild a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.
Languine
MITA developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.
Grida
Apache-2.0Design and build web applications on an open canvas with AI-powered tools, Figma integration, pixel drawing, and a modular SDK built for extensibility.
Giselle
Apache-2.0Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Dub Partners
NOASSERTIONRun affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.
Dub Links
NOASSERTIONLink management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.
Cap
NOASSERTIONRecord your screen or webcam, edit with backgrounds and effects, then share via link. Built on Rust and Tauri for native performance on macOS and Windows.
0 Finance
MITCLI-first banking platform for AI agents and autonomous workflows

Ycode
MITBuild, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.
Supabase
Apache-2.0Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.