# Rindler

> Rindler automates web portal work by signing into login-gated sites your team uses and running tasks like pulling records, downloading statements, and submitting forms in plain language.

Rindler is a Y Combinator-backed web automation platform founded in 2025 by MIT classmates Michael Serrano and Arthur De Los Santos, who conducted research at MIT CSAIL. It targets the portal-heavy busywork that teams still do by hand — logging into supplier portals, ATS boards, payer portals, bank sites, and government registries — and runs those tasks automatically, including behind login walls, on sites that have no API and never will.

## What It Is

Rindler is a browser automation service that signs into the websites your team already uses and performs repetitive tasks on your behalf. Unlike RPA tools that record exact click paths and break when a page redesigns, Rindler works from what a screen *means* rather than where a button sat. You describe the job in plain language — "pull the open orders from our supplier portal every weekday morning" — and Rindler handles the login, navigation, data extraction, and scheduling. Results come back as structured rows, not screenshots, ready to feed into a spreadsheet or downstream system.

## How the Workflow Works

The setup follows four steps:

- **Describe the job** — plain words, no builder, no flowchart
- **Connect the site** — sign in once; the session is encrypted and scoped to that one site
- **Monitor the run** — every step and every screen the agent saw is logged
- **Scale with automations** — save tasks and put them on a schedule; they run on their own

The first pass through a new site is where the mapping work happens. After that, the same task repeats without rediscovering the site. When a portal changes its layout, Rindler repairs the route centrally for everyone on that site — no ticket required, no charge for the fix.

## Target Industries and Use Cases

Rindler is built for teams whose day is spent inside login-walled systems they do not control. The platform covers six portal-heavy verticals:

- **Procurement & AP** — supplier portals, invoice upload, PO status, vendor updates
- **Government & Courts** — registries, permits, court e-filing, records retrieval
- **Healthcare & Insurance** — prior auth, appeals, attachments, credentialing upkeep
- **HR & Recruiting** — work across every client's ATS, job posting, candidate pulls
- **Banking & Lending** — statement downloads, transaction exports, payoff quotes
- **Commerce, Travel & Property** — storefronts, booking, listings, calendars, reorders

The platform also supports one-off chat-style tasks on public sites like Greenhouse, Lever, Ashby, and state business registries.

## Security and Session Model

Rindler's security model is designed around not holding passwords. For most sites, users sign in themselves on the real login page inside a browser Rindler manages; Rindler then holds only the resulting session, encrypted with AES-256-GCM under a key scoped to the user's account. A limited opt-in option allows storing sign-in credentials per site. Sessions are revocable at any time, and revocation deletes the encrypted record. The platform uses Anthropic (Claude) and OpenAI for AI processing, with training opt-out and retention switched off. Rindler is not SOC 2, HIPAA, or PCI certified as of the time of writing, and states this explicitly.

## Performance Claims and Architecture

Rindler's homepage benchmarks the platform against browser-use, an open-source browser agent, across 38 runs on two grocery tasks in early 2026. According to Rindler's own published figures, using a pre-mapped site resulted in 4× faster task completions, 3× lower cost per run (due to returning structured records rather than full page DOM), and 2× fewer failed tasks compared to an unmapped agent. The MCP integration exposes four core tools — `start_session`, `dispatch_action`, `extract_content`, and `close_session` — allowing AI agents to call Rindler as a structured tool rather than scraping raw HTML.

## Features
- Plain-language task description — no code or flowcharts required
- Login-gated site automation with encrypted session management
- Scheduled automations that run on a cadence
- Structured data extraction (rows, not screenshots)
- File and document downloads with expiring direct links
- Per-action permission controls (Allow / Ask first / Never)
- Automatic site repair when portal layouts change
- MCP integration for AI agent tool calls
- Multi-site batch runs in one pass
- Full run audit log with steps and screens
- PDF and attachment text extraction
- Form submission, invoice upload, and multi-step filings
- Chat interface for one-off tasks on supported sites
- AES-256-GCM encrypted session storage scoped per site

## Integrations
Greenhouse, Lever, Ashby, Chase, Anthropic Claude, OpenAI, Stripe, Clerk, AWS, Browserbase, BrightData, Sentry, PostHog, Cloudflare, Resend, Slack, Infisical, Capsolver, Porter

## Platforms
WEB, API, CLI

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://rindler.ai
- Documentation: https://rindler.ai/docs
- EveryDev.ai: https://www.everydev.ai/tools/rindler