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Stack0
NEWStack0 Agents are available

The autonomous
product stack.

Agents build your idea, deploy it to production, monitor it, and operate it. You run the company.

Build an appView documentation
claude code · ~/climbdayidle

A Claude Code session: you ask for a climbing-gym booking app, it creates a Pylon project, declares the entities and policies in app.ts, writes the functions and the routes, checks it with zero errors, and deploys it to a live URL.

Works with the agent you already use

Claude CodeOpenAI CodexCursorOpenCodeGrok Build

Build

Describe it. Agents ship it.

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$ pylon deploy

Cloud

A real server per app, global edge CDN, scale to zero.

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A Pylon live query over bookings. New rows arrive on every connected client without polling.

Pylon

Everything an app needs, in one server. Open source.

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Four agents run the gym. This morning they closed twelve jobs, and nothing is waiting on the owner.

Agents

A team that runs the business on its own.

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An analytics dashboard: visitors, revenue, and conversion for the last 30 days, with the sources that produced revenue.

Analytics

Pageviews to payments. No cookies.

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One SDK.
Every service.

Email, CDN, video, screenshots, extraction, workflows, and 350+ integrations through a single key and a single bill. Idle services cost nothing.

Get API keyRead docs
8
managed APIs
41
MCP tools
6
SDK languages
import { Stack0 } from "@stack0/sdk"
 
const stack0 = new Stack0({ apiKey: process.env.STACK0_API_KEY })
 
await stack0.mail.send({ to, subject: "Welcome!", html })
await stack0.screenshots.captureAndWait({ url, format: "png" })
await stack0.extraction.extractAndWait({ url, schema: Listing })
AI WorkflowsChain multi-step AI pipelines$0.001 / stepIntegrations350+ third-party APIs$1 / 1K callsEmailTransactional & marketing$0.50 / 1KCDNFile storage & edge delivery$0.25 / GBExtractionWebpage to structured JSON$2 / 1KScreenshotsCapture any webpage$1 / 1KVideoStreaming & transcoding$0.005 / minWebdataCrawl sites to clean markdown$1 / 1K pages

$20/mo includes $10 of usage. Metered beyond that.

Built for the model, not just the human.

A coding assistant can't open six vendor accounts. Stack0 is one credential covering all of them: a JSON Schema per tool, an MCP server, an OpenAPI 3.1 document, and Markdown from every URL.

MCP server docsopenapi.jsonllms.txt

$ npx @stack0/mcp

connecting to api.stack0.dev/mcp

✓ 41 tools available

email.sendcdn.uploadscreenshots.takeextraction.runvideo.mergeworkflows.runintegrations.*

Choose how to get started

Self-host Pylon

Run the framework on your own infrastructure. No account required.

  • MIT licensed, open source
  • Database, auth, and live queries in one runtime
  • Deploy anywhere a binary runs
Explore Pylon

Deploy on Stack0

$20 / month

Every product, one bill, one API key. Includes $10 of usage credits each month.

  • Build, Cloud, Agents, Analytics, and APIs
  • Sandbox and production environments per project
  • Metered usage, cancel anytime
Get started