Cosmic

Active

Cosmic is an AI-powered headless CMS

Winter 2019Founded 20165 peopleSan Francisco, CA, USA; Remote

www.cosmicjs.com ↗LinkedIn ↗X ↗GitHub ↗Crunchbase ↗See on the Idea Map B2B momentum

About

Cosmic is an AI-powered headless CMS built for teams that move fast. We combine flexible content infrastructure with AI Agents that live in Slack, write content, build features, fix bugs, and deploy apps autonomously. Developers get a REST API with sub-100ms response times, a TypeScript SDK, CLI, and MCP Server that plugs directly into Cursor, Claude Code, and GitHub Copilot. Content teams get an intuitive dashboard with 20+ metafield types, AI image and video generation, and no migrations ever. Teams use Cosmic because it eliminates the need to build and maintain CMS infrastructure while giving them AI capabilities most platforms haven't shipped yet. Used by teams in 150+ countries, 50M+ API requests per month, 99.9% uptime SLA. Forever free plan. No credit card required.

From their website

as of Jun 7, 2026www.cosmicjs.com ↗

SaaSSubscription · Plans include Free, Builder, Team, Business with monthly or yearly billing. Add-ons and Enterprise custom pricing available. Free plan requires no credit card.

Cosmic is an AI-powered headless CMS that enables teams to create content, build features, and deploy applications using AI agents integrated directly into chat tools. It emphasizes fast deployment, scalable infrastructure, and an accessible free-to-start model with paid tiers for larger teams.

Cosmic provides an AI-native headless CMS where teams manage content, build features, and ship code via AI agents that operate inside team chat channels (Slack, WhatsApp, Telegram). The platform includes a web dashboard (Cosmic Dashboard) for managing content models, agents, and workflows, a CLI and SDKs for building and deploying full-stack projects, and automation workflows (AI Agents, AI Workflows) to generate content, code, and deployments. It supports one-command deployment to Vercel, automated content pipelines, and REST/SDK access, with enterprise-grade infrastructure, uptime, security, and scalability features (SLA, global CDN, auto-scaling, 256-bit SSL, RBAC, 2FA). Pricing is available via a Free plan and multiple paid tiers, plus add-ons and custom Enterprise options.

Who it’s for: Teams and organizations that need an AI-assisted, integrated content and app development workflow, including product teams, developers, content teams, and agencies seeking rapid content creation, feature development, and deployment without context-switching.

Features

AI-powered content creation and management
AI agents integrated in team chats (Slack, WhatsApp, Telegram)
One-command full-stack app generation and deployment
Automated content workflows and code changes
Enterprise-grade infrastructure and security
Global CDN, auto-scaling, and high uptime
REST API and SDKs with full TypeScript support

Pricing page details multiple paid tiers and enterprise options; live demos and free-to-start model mentioned. Presence of team-oriented features and integrations implies active product-market fit and traction focus.

Founders · 1

Tony SpiroFounder/CEO

Twitter

My name is Tony Spiro (Cosmic W2019) I'm interested in solving problems with technology. Find me on Twitter: @tonyspiro

LinkedIn ↗X ↗

Launch

Launched on Y Combinator · May 2023

View launch post ↗

Cosmic is an API-first content management system (CMS). We provide a web dashboard to create content, and API tools to deliver content to any website or app.

Cosmic launches Cosmic 2.0, a headless CMS with a redesigned web dashboard, API v3 and new JavaScript SDK, and updated documentation. It offers content modeling, media hosting, collaborative access, and delivery via a built-in API and global CDN for websites and apps.

From the original launch (May 2023) — may be outdated.