Why Svelte and Cosmic Work So Well Together
Svelte strips away the runtime overhead — and Cosmic strips away the CMS complexity. Together, you get a stack that's genuinely fast: no heavy JavaScript bundles, no over-engineered content APIs, just clean components powered by structured data.
SvelteKit's functions run on the server (or at the edge), making them the perfect place to call the Cosmic REST API. Data arrives before the page renders, keeping your Lighthouse scores high and your users happy.
What You Get
- REST API with sub-100ms response times — Cosmic's globally cached API keeps SvelteKit pages fast on every request.
- TypeScript SDK — Fully typed with a clean chainable API. Works perfectly in SvelteKit functions.
- AI Agents — Built-in agents that generate, update, and manage content automatically.
- MCP Server — Connect Cosmic to your AI toolchain via the Model Context Protocol.
- CLI — Scaffold projects, manage buckets, and push content models from the terminal.
Fetching Cosmic Content in a SvelteKit Load Function
Install the SDK:
Then use it in your SvelteKit route:
Then in your Svelte component:
SvelteKit's server-side load functions mean your content is always fetched before the page renders — no loading spinners, no layout shift.
Key Features
REST API Built for Speed
Cosmic's API is globally distributed and returns sub-100ms responses on cached requests. The lightweight response format pairs perfectly with Svelte's minimal runtime.
TypeScript SDK
The package ships with full TypeScript types. Autocomplete, type safety, and a chainable query API that feels natural in any SvelteKit codebase.
AI Agents
Cosmic includes built-in AI Agents that generate and update content on a schedule, respond to triggers, and plug into your existing workflow tools.
MCP Server
Connect Cosmic to any MCP-compatible AI tool. Build content pipelines that work with Claude, GPT, and other LLMs.
CLI
Scaffold new projects, sync content models, and manage your buckets directly from the terminal.
Pricing
| Plan | Price | Buckets | Team Members | Objects |
|---|---|---|---|---|
| Free | $0/month | 1 | 2 | 1,000 |
| Builder | $49/month | 2 | 3 | 5,000 |
| Team | $299/month | 3 | 5 | 20,000 |
| Business | $499/month | 5 | 10 | 50,000 |
| Enterprise | Custom | Custom | Custom | Custom |
Additional users: $29/user/month. The Free plan is forever free — no credit card required.
Related Resources
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