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When the MCP standard first launched, many teams rushed to ship something. Many servers ended up as thin wrappers around existing APIs with minimal changes. A quick way to say "we support MCP". At the time, this made sense. MCP was new, teams wanted to get something out quickly, and the obvious approach was mirroring existing API structures. Why reinvent when you could repackage? But the problem w

v0.dev is now v0.app, the AI builder for everyone With a single prompt, anyone can go from idea to deployed app with UI, content, backend, and logic included. v0 is now agentic, helping you research, reason, debug, and plan. It can collaborate with you or take on the work end-to-end. From product managers writing specs to recruiters launching job boards, v0 is changing how teams operate. One promp

Today, we're launching the official Vercel MCP server, now in Public Beta. Vercel MCP is a secure, OAuth-compliant interface that lets AI clients interact with your Vercel projects. AI tools are becoming a core part of the developer workflow, but they've lacked secure, structured access to infrastructure like Vercel. With Vercel MCP, supported tools like Cursor and Claude can securely access logs,

NuxtLabs, creators and stewards of Nitro and Nuxt, are joining Vercel. Nuxt, the fullstack web framework, is trusted by hundreds of thousands of developers and used by some of the world’s largest companies, with more than 1 million downloads every week. Nitro is the server runtime built for consistency across frameworks, platforms, and workloads. It powers APIs, AI agents, and more. In many ways,

The Model Context Protocol (MCP) standardizes how to build integrations for AI models. We built the MCP adapter to help developers create their own MCP servers using popular frameworks such as Next.js, Nuxt, and SvelteKit. Production apps like Zapier, Composio, Vapi, and Solana use the MCP adapter to deploy their own MCP servers on Vercel, and they've seen substantial growth in the past month. MCP

AI agents are software systems that take over tasks made up of manual, multi-step processes. These often require context, judgment, and adaptation, making them difficult to automate with simple rule-based code. While traditional automation is possible, it usually means hardcoding endless edge cases. Agents offer a more flexible approach. They use context to decide what to do next, reducing manual

Introducing type-safe chat and agentic loop control for full-stack AI applications With over 2 million weekly downloads, the AI SDK is the leading open-source AI application toolkit for TypeScript and JavaScript. Its unified provider API allows you to use any language model and enables powerful integrations into leading web frameworks. “When customers ask how they should build their agents, I alwa

Model Context Protocol (MCP) is a way to build integrations for AI models. Vercel now supports deploying MCP servers (which AI models can connect to) as well as MCP clients (AI chatbot applications which call the servers). Get started with our Next.js MCP template today. How is MCP different than APIs?APIs allow different services to communicate together. MCP is slightly different. Rather than thi

Grep is extremely fast code search. You can search over a million repositories for specific code snippets, files, or paths. Search results need to appear instantly without loading spinners. Originally built with Create React App (CRA) as a fully client-rendered Single-Page App (SPA), Grep was fast—but with CRA now deprecated, we wanted to update the codebase to make it even faster and easier to ma

Chat SDK is a free, open-source template for building powerful chatbot applications The AI SDK powers incredible applications across the web, and today we're announcing the Chat SDK—a best-in-class, production-ready template for building conversational AI applications like ChatGPT or Claude artifacts. With the Chat SDK, you get a complete production-ready application built on Next.js App Router wi

Last week, we published CVE-2025-29927 and patched a critical severity vulnerability in Next.js. Here’s our post-incident analysis and next steps. Timeline2025-02-27On 27 Feb 2025 06:03:00 GMT, the vulnerability was disclosed to the Next.js team through GitHub private reporting. The researchers also emailed security@vercel.com. The initial report disclosed the vulnerability in older versions of Ne

While dedicated servers provide efficiency and always-on availability, they often lead to over-provisioning, scaling challenges, and operational overhead. Serverless computing improves this with auto-scaling and pay-as-you-go pricing, but can suffer from cold starts and inefficient use of idle time. It’s time for a new, balanced approach. Fluid compute evolves beyond serverless, trading single-inv

Announcing the acquisition of Tremor, bringing elegant dashboard and chart UI components to all developers. Tremor is an open source library built on top of React, Tailwind CSS, and Radix. It consists of 35 unique components and 300 blocks that can be copy-pasted to build visually rich and interactive dashboards. The Tremor community has seen impressive growth with over 16,000 stars, 300,000 month

A quick recap of the biggest highlights from Next.js Conf 2024 in San Fransisco. Our fifth annual Next.js Conf finished yesterday, where we shared our research and upcoming improvements to the framework, as well as what's new in the community and Next.js ecosystem. Over 1,000 people in the Next.js community gathered in San Francisco and tens of thousands around the world watched online to see what

Learn how Vercel cut build times and improved developer velocity while maintaining a smooth user experience with microfrontends. Vercel's main website, once a single large Next.js application, serves both our website visitors and logged-in dashboard. But, as Vercel grew, this setup revealed opportunities for improvement. Build times grew, dependency management became more intricate, and workflows

A look at Vercel's philosophy and techniques in AI-native development. AI changes how we build software. In combination with developers, it creates a positive feedback loop where we can achieve better results faster. However, traditional testing methods don't work well with AI's unpredictable nature. As we've been building AI products at Vercel, including v0, we've needed a new approach: eval-driv

React 19 is near. The React Core Team announced a React 19 release candidate (RC) this past April. This major version brings several updates and new patterns, aimed at improving performance, ease of use, and developer experience. Many of these features were introduced as experimental in React 18, but they will be marked as stable in React 19. Here’s a high-level look at what you need to know to be

MERJ and Vercel's research to demystify Google's rendering through empirical evidence. Understanding how search engines crawl, render, and index web pages is crucial for optimizing sites for search engines. Over the years, as search engines like Google change their processes, it’s tough to keep track of what works and doesn’t—especially with client-side JavaScript. We’ve noticed that a number of o

Web rendering has evolved from simple server-rendered HTML pages to highly interactive and dynamic applications, and there are more ways than ever to present your app to users. Static Site Generation (SSG), Server-Side Rendering (SSR), Client-Side Rendering (CSR), Incremental Static Regeneration (ISR), and experimental Partial Prerendering (PPR) have all been developed to optimize performance, SEO

Vercel Functions run code on demand without the need to manage your own infrastructure, provision servers, or upgrade hardware—and are now powered by Rust under the hood. We're gradually rolling out these improvements to new deployments, with all customers on our new Rust-powered functions in the coming weeks. No action is required. We've already served billions of invocations on our new system, w

A frontend take on Jeff Dean's "Latency Numbers Every Programmer Should Know". Web page load times and responsiveness to user action in web apps is a primary driver of user satisfaction–and both are often dominated by network latency. Latency itself is a function of the user's connection to the internet (Wifi, LTE, 5G), how far away the server is that the user is connecting to, and the quality of

The Ruby runtime is used by Vercel to compile Ruby Vercel functions that define a singular HTTP handler from .rb files within an /api directory at your project's root. Ruby files must have one of the following variables defined: Handler proc that matches the do |request, response| signature. Handler class that inherits from the WEBrick::HTTPServlet::AbstractServlet class. For example, define a ind

Hobby remains free, Pro has reduced prices on bandwidth and functions, and more granular usage metrics for all plans. Based on your feedback, we're updating how we measure and charge for usage of our infrastructure products. We're reducing pricing on Vercel fundamentals like bandwidth and functions For the majority of customers, monthly bills will remain the same or decrease We're introducing new

Design Engineer is a new role that is gaining popularity—a role that is both confusing and exciting. Expectations for what good software looks and feels like have never been higher. Design Engineers are a core part in exceeding that expectation. This post will go behind the scenes for Design Engineering at Vercel, our work, skills, and how we contribute to shipping with a high degree of polish and

Configuring your Remix application with the Vercel Vite preset. We've collaborated with the Remix team to add Server Bundles to Remix. Vercel will now detect Remix projects using Vite and optimize them using our new Vite preset (@vercel/remix/vite). This preset enables adding additional features for Remix on Vercel such as: Streaming SSR: Dynamically stream content with both Node.js and Edge runti

Stream React Components from LLMs to deliver richer user experiences Last October, we launched v0.dev, a generative UI design tool that converts text and image prompts to React UIs and streamlines the design engineering process. Today, we are open sourcing v0's Generative UI technology with the release of the Vercel AI SDK 3.0. Developers can now move beyond plaintext and markdown chatbots to give

We’ve been building a new foundation for compute, built on top of Vercel’s Managed Infrastructure, for the past year. Today, we’d like to share our first major iteration of Vercel Functions: Increased Concurrency: Now up to 100,000 concurrent invocations Web Standard APIs: New Function signature using Web Request and Response Zero-Config Streaming: Stream responses with the full power of Node.js L

Unlocking the future of your build system with Rust-based Turbo. We've finished porting Turborepo, the high performance JavaScript and TypeScript build system, from Go to Rust. This lays the groundwork for better performance, improved stability, and powerful new features. Here’s how we finished this port and shipped the first all-Rust version of turbo. Since last timeAt the end of our previous art