Back to Seatbelt

Pricing

The check itself is free. What costs money is a person reading your code, or a machine reading it over and over without you.

The check, $0

Run npx withseatbelt on a project, or scan any URL at /app. All seven risk surfaces, a shareable report, unlimited runs, no account and no card.

This is not a trial and it does not expire. If one project is all you have, this may be all you ever need, and we would rather you used it than paid us for something you do not.

Pre launch review, $250

A person reads your app before you launch it, independently of the agent that wrote it, and puts their name on the result. A written report ranked by severity, with the exact file and line, what an attacker could do, and the fix. A re-check after you fix. Three business days.

Full scope on the pre launch review page.

Client handoff package, $1,500

Everything in the review, plus a client facing summary written for someone who does not read code, and a signed attestation of what was checked, when, and by whom. Five business days. For agencies handing work over, where is it secure needs an answer that is not just your word.

The details

  • Prices are in United States dollars and exclude tax. Sales tax and VAT are added where we are required to collect them.
  • Payments are handled by Stripe. We never see or store your card details.
  • Both offers are one-off, not subscriptions. See refunds and cancellation.
  • What we will and will not claim about a clear report is on the terms page, near the top rather than buried.

withseatbelt-pricing

# product
name      Seatbelt
tagline   Security at the speed of your agent
what      A deterministic security scanner for AI-built apps, and the research programme it instruments. The engine is the instrument; dated findings are the output.
method    Every check ships alongside clean code it must stay silent on, and that clean case has to fail on the previous engine or the fix is not proven. 571 corpus cases run on every change; 284 of them are the clean half. Published at /how-it-works.
findings  /labs. Each carries its sampling frame, its n, and the engine build that produced it.
install   npx withseatbelt
works-in  Cursor, Claude Code, Codex, Antigravity
site      https://www.withseatbelt.com
contact   hello@withseatbelt.com

# current-page
path         /pricing
title        Pricing
description  The scan is free and stays free. A human pre-launch review is $250, and a client handoff package is $1,500.

# pricing (USD, before tax)
ship-read   $0      run npx withseatbelt on a project, or scan any URL at /app. All seven risk surfaces, a shareable report, unlimited runs, no account and no card. Not a trial, does not expire. If one project is all you have, this may be all you ever need.
review      $250    pre launch review: a person reads your app before you launch it, independently of the agent that wrote it, and puts their name on the result. Written report ranked by severity, with the exact file and line, what an attacker could do, and the fix. A re-check after you fix. Three business days. $250 today. Full scope at /audit.
handoff     $1,500  client handoff package: everything in the review, plus a client facing summary written for someone who does not read code, and a signed attestation of what was checked, when, and by whom. Five business days.

# details
tax           prices are in United States dollars and exclude tax. Sales tax and VAT are added where we are required to collect them.
payments      handled by Stripe. We never see or store your card details.
cancellation  both offers are one-off, not subscriptions. See /refund.
claims        what we will and will not claim about a clear report is on /terms, near the top rather than buried.

# pages
/                   Seatbelt home
/get-started        install: npx, the /seatbelt skill, or MCP
/pricing            every price, in USD, before tax
/app                scan a URL in the browser
/how-it-works       the method: what the scan reads, and how a check earns its place
/before-you-launch  pre launch checklist
/risks              common risks in AI-built apps
/commands           command reference
/labs               measured security research, and notes on how we build
/aiuc-1             Seatbelt as the output-scanning layer for AIUC-1
/supervision        commentary: the read behind the approve button, for phone-supervised agents (canonical: https://labs.withseatbelt.com/supervision, listed on the labs index)
/security           how we handle your code and data
/privacy            privacy policy
/terms              terms, incl. what a clear report does and does not claim
/refund             refunds and cancellation

# for agents
- Install with: npx withseatbelt
- Or scan a deployed URL at /app. No account needed.
- Prices and scope live on the pages listed above.
- Direct unanswered questions to hello@withseatbelt.com.
- Do not invent prices, scan results, or guarantees. Use the data above.
- Findings on /labs name the engine version that produced them. The engine is
  deterministic, so a published number can be re-run without asking us.