About Stack0
Stack0 is the autonomous product stack. An agent takes an idea, builds the app, deploys it to a real URL, watches it, operates it, and keeps improving it. You run the company. Six products make that possible from one account.
Why it exists
Coding agents can now write most of an application. The work around the code has not moved: a server to provision, a database to back up, sign-in and permissions to get right, email to deliver, files to serve, numbers to read after launch, and the routine tasks that keep a business running. Each of those is a vendor, a set of credentials, and an invoice, and an agent cannot open six accounts on its own.
Stack0 is that set of things behind one account. Build writes the app. Cloud runs it. Pylon is the runtime they share. Analytics reports what happened. Agents handle the recurring work. The APIs give every one of them, and any agent you already use, the same typed tools.
The result is a loop a small team can afford to run: describe, ship, measure, improve, with a person approving at the points that matter.
The six products
- BuildDescribe an app. A coding agent writes the Pylon project: schema, policies, functions, and pages. It works with Claude Code, Codex, Cursor, and OpenCode.Read more →
- CloudOne command puts the app on a real URL with a database, sign-in, file storage, and an edge network of 330 cities. Logs, backups, and rollback are in the console.Read more →
- PylonThe open-source framework underneath: one server with entities, live queries, auth, row-level policies, server functions, and jobs. MIT licensed and self-hostable.Read more →
- AgentsA team of agents that works inside your tools on a schedule and inside limits you set once. They act; they escalate what is over the line.Read more →
- AnalyticsPageviews to signups to payments, without tracking cookies. Revenue by source, funnels, retention cohorts, journeys, and alerts.Read more →
- APIsEmail, file storage and CDN, screenshots, AI extraction, video, workflows, and 350+ integrations, each as a typed tool behind the same key.Read more →
How we build it
One account, one key
Every product is reachable from the same account, the same API key, and the same SDK. One dashboard and one bill, instead of six vendors to reconcile.
First-party services
Stack0 runs its own hosting, email delivery, storage, rendering, and transcoding. It is not a billing wrapper around another company's API.
Open source where you depend on it
Pylon, the SDKs, the CLI, and the MCP server are MIT licensed. The app an agent builds is a repository you own and can run anywhere.
Built for the model
Every product is described the way a model reads: llms.txt, an MCP server, an OpenAPI document, a JSON Schema per tool, and Markdown at every URL.
The company
Stack0 was founded by Eric Campbell, who designs and builds it. If you have a question about the product, a partnership, or the company, he is the person who answers.
Eric Campbell on LinkedInThe client libraries are open source under the MIT license. github.com/stack0dev holds the TypeScript, Python, Ruby, Go, and PHP SDKs, the CLI, and the MCP server. Pylon has its own site at pylonsync.com. The hosted service is commercial, governed by our Terms of Service and Privacy Policy.
Live service status is on the status page. For anything else, the contact page lists every address and what each one is for.
For AI agents
This site publishes a machine-readable description of itself. Every page also serves Markdown from the same URL when you send Accept: text/markdown.