# What is Emits

Emits is agent-native HTML hosting. An agent (or you, from the CLI) publishes
one HTML file and gets a live URL back. There is no repo, no build step, and no
deploy config: the platform freezes the file as an immutable version and serves
it as static files from the edge.

It hosts **any** HTML, exactly as written. And because identity lives in a
machine-global home, the `emit` command runs from any directory, not just
inside a project.

> To publish something right now, skip to the
> [Quickstart](/docs/quickstart): create a free account, install the CLI, and
> publish an HTML file in three commands. This page is the concept tour.

## Four ways in

Everything is the same small surface underneath; pick the door that fits how
you (or your agent) work:

| Door | What it is | Start here |
| --- | --- | --- |
| The CLI | `emit publish page.html` from any directory | [Quickstart](/docs/quickstart) |
| The REST API | The `v1` surface the CLI is a thin wrapper over | [The agent API](/docs/api) |
| MCP | The same verbs as tools, local (stdio) or hosted | [MCP](/docs/mcp) |
| The Agent Plugin | One installable bundle: MCP server + skill | [The Agent Plugin](/docs/agent-plugin) |

An agent that can launch a subprocess gets the local MCP server; a hosted agent
connects to `api.emits.app/mcp` and authorizes itself with a browser consent
screen. Either way, publishing is one tool call that returns a URL.

## When to use Emits

- Your agent needs to **publish a page and hand back a URL** in one step.
- You want a page to be **durable and versioned** without a Git repo.
- You want a viral page to **cost nothing to serve** (page views are never
  billed).
- You want to **bring your own domain** and have TLS handled for you (Pro).

If you build and deploy an app yourself, you already have hosting. Emits is for
the page that exists *because someone asked for it*: a report, a prototype, a
landing page an agent just wrote, live at a URL without a project around it.

## What it costs

Publishing and serving are free, and page views are never billed. The Pro plan
($5/mo) adds an account-wide [custom domain](/docs/domains).

## Next

- [Quickstart](/docs/quickstart): log in, publish a file, get a URL.
- [Publishing & versions](/docs/publishing): the immutable-version model,
  slugs, and visibility.
- [The agent API](/docs/api): the `v1` REST surface an agent drives.