Open-source tools that help you understand what you're signing. Built on a decade of home security industry experience — but useful for any contract.
Try it now: bastion-contract-scan.onrender.com | bastion-compat-check.onrender.com | bastion-cost-engine.onrender.com
The home security industry charges $40-50/month for a notification relay with a human call center. Sensors are binary switches. "Monitoring" is a person reading an alert and making a phone call. The contract exists to protect recurring revenue, not the customer.
But this isn't just a home security problem. Predatory contract patterns — auto-renewal traps, forced arbitration, liability caps, hidden fees — show up in every industry that depends on long-term contracts: telecom, gyms, SaaS, solar leases, rent-to-own, insurance.
BASTION makes every layer of that model transparent.
Upload any contract (PDF or text) and get a plain-English report on what's hiding in the fine print.
- 39 flags across security, financial, privacy, and general consumer protection categories
- Negation-aware — "there is no early termination fee" won't trigger a false alarm
- Readability scoring — Flesch-Kincaid grade level shows when a contract is written to confuse you
- Web UI — drag-and-drop in your browser, no install required
- CLI —
bastion-contract-scan agreement.pdffor power users - Local-first — install locally and your contract never leaves your machine
Use it online | Install locally | Source
Check if your home security devices are compatible before you buy. Free, instant, no signup.
- 403 devices across 45 manufacturers with 79 compatibility overrides
- 4 verdicts — COMPATIBLE, INCOMPATIBLE, PARTIAL, UNKNOWN
- Rules engine — checks frequency match, protocol compatibility, known edge cases, and platform requirements
- Single-device mode — select one device to see everything compatible with it
- Browsable device database — filterable table of all devices
- Local-first — stateless API, no data stored
Find out what you're really paying for home security. True cost transparency — no sales pitch required.
- 7 providers — Frontpoint, ADT, Ring, SimpliSafe, Vivint, Abode, Cove
- Equipment builder — select your devices and see provider markup vs. generic retail
- True monthly cost — exposes hidden fees not shown on pricing pages
- 3-year total cost of ownership — equipment + monitoring + fees vs. DIY
- ETF escape timeline — shows when paying the early termination fee is cheaper than staying
- Provider comparison — all providers side-by-side with your equipment profile
- Shareable URL — every result is a permalink, no database needed
- Local-first — stateless, no data stored, no accounts
- No cloud dependency. Install locally and everything runs on your machine.
- No accounts. No signup, no login, no tracking.
- No cost. Free and open source. MIT license.
- No fluff. Each tool does one thing well. The report tells you what to do, not what to think.
Issues and pull requests welcome. If you've found predatory clauses we don't detect, open an issue.
MIT