Tabstack

What is Tabstack?

Tabstack is a web execution layer API built by Mozilla for developers building AI systems that need to reliably read and act on the web. Instead of managing headless browsers, scrapers, or orchestration pipelines, developers pass a URL, schema, question, or task to Tabstack and get structured JSON, cited research answers, or completed browser tasks in minutes. The platform handles browser rendering, navigation, data extraction, and synthesis internally, supporting SPAs, complex forms, and multi-step workflows. Tabstack never sells data or uses requests to train models.

Key Features

• Managed Web API

  Single API for data extraction, research, and browser automation without managing LLMs, browsers, or pipelines. Get structured JSON, cited answers, or completed tasks in minutes.

• Schema-Matched JSON Extraction

  Pass a URL and JSON schema to /extract/json, receiving data that matches your schema exactly. Handles reasoning, rendering, and schema enforcement before response.

• Cited Research Agent

  /research endpoint delivers synthesized answers from the live web with every claim cited to its source. Source selection, reading, and synthesis happen inside the call with SSE streaming.

• Browser Automation Without Infrastructure

  /automate executes plain-language tasks on live pages: navigating, clicking, filling forms, and completing multi-step flows on JS-heavy sites. Powered by Pilo engine using 60-80% fewer tokens.

• Mozilla-Backed Privacy

  Private by default with requests purged after completion. Never sold, never trained on. Transparent data practices with robots.txt compliance and Mozilla-documented policies.

• Multiple SDKs and CLI

  TypeScript SDK, Python SDK, MCP integration, and CLI available. Add to any agent in 30 seconds with simple import and single API calls.

Use Cases

• Competitive Intelligence Dashboards : Track competitor pricing, packaging, and positioning on schedule. One call returns schema-matched JSON for live dashboards without copy-pasting.
• Lead Enrichment Pipelines : Transform raw domains into headcount, tech stack, funding, and ICP fit. Enrich inbound leads inside your pipeline without multiple data vendors.
• In-Product Research Features : Ship research capabilities that answer from the live web with citations on every claim. Source selection and synthesis run inside the call.
• Booking and Checkout Agents : Complete real bookings and checkouts end-to-end. Describe tasks in plain language for navigation, form filling, and flow completion without running browsers.
• Back-Office Workflow Automation : Replace brittle scripts for busywork. Fill and submit forms across third-party sites without APIs, pausing for human judgment when needed.
• Knowledge Base Ingestion : Convert any page into clean Markdown for RAG pipelines. Feed docs, articles, and product pages without writing or maintaining scrapers.

FAQs