Tabstack gives AI agents and apps finished output from the live web in a single API call. Extract structured data to a schema you define, convert pages to Markdown, run cited multi-source research, and automate browser tasks. Every call returns exactly what you asked for. Built for developers shipping autonomous agents and those adding web interaction to an existing app or stack. Built by Mozilla, with ephemeral processing, no model training on your data, and robots.txt compliance by default.
This is the 5th launch from Tabstack by Mozilla. View more
Schema Source by Tabstack
Launching today
Get the JSON Schema for any URL. Paste a link and get a ready-to-use schema as JSON Schema, a Zod object, or a Pydantic model. Copy it straight into your extraction or validation code.
Schema Source learns each site's URL patterns, so results come back fast and stay consistent across pages of the same shape.
Every result is also an API: request the same URL with JSON content negotiation and get the cached schema back, no key required.
Free, by the team behind Tabstack—backed by Mozilla.
Free
Launch Team
Tabstack by Mozilla
This team delivers.
@Tabstack by Mozilla is a powerful web content extraction and transformation toolkit designed specifically for AI agent builders. It's schema-based. You define a JSON schema for the fields you want, and every call reads the page and maps it to that schema. So you maintain the schema, not the scraping logic.
When they previously launched, the community had many questions on this schema-first approach. Introducing Schema Source - a free utility to help you quickly build your first schema and get started. Enter any URL, get a structured JSON schema. That's it!
You have the API. You have the tools. You have the schema. What will you scrape today?
Tabstack by Mozilla
👋 Product Hunt!
We're launching our free tool, Schema Source. Paste any URL and it generates a ready-to-use JSON Schema for that page's data, as JSON Schema, Zod, or Pydantic.
https://schema.tabstack.ai/
Generating your own is great when the page is unusual or specific. But a lot of extraction work is the same handful of shapes over and over: a job posting, a product listing, a company profile, a real estate listing. So here's another way to do it.
We also open-sourced 46 pre-defined schemas on GitHub, across 10 industry categories: real estate, jobs, e-commerce, finance, healthcare, dev tooling, gov records, travel, b2b intel, and social. Grab the file, point Tabstack at a URL, get data back. https://github.com/Mozilla-Ocho/tabstack-schemas
Grab one or generate your own, whichever fits.
Tabstack by Mozilla
@tessak22 OSS ftw!!