GPTAuth by Techosaurus — Secure, Engage, and Measure CustomGPTs

The four services in v1

Plug‑and‑play building blocks that make your CustomGPT production‑ready.

2FA Authentication

Only verified users get in

Gate your GPT via email code. Perfect for internal tools, client‑only assistants, paid betas or exams.

2FA Email Capture

Grow a clean, consented list

We verify email ownership with a one‑time code, log the subject line only, and include an instant unsubscribe link.

Send Email to User

Deliver the goods beautifully

Ship final outputs — plans, proposals, creative — to the user’s inbox in styled HTML. Zero copy‑paste.

Send Email to Author

Turn usage into insight

Pipe responses to you or your team for research, surveys, onboarding, or human hand‑off.

Coming next

Analytics snapshots

Daily/weekly trend views and one‑click CSVs to your data tools.

Coming next

Role‑based access

Superadmin/Admin/Client Admin/Viewer — scoped to customer & service.

Coming soon

Custom Services

Users get unique instructions downloaded to their CustomGPT after successfully logging in, all managed from our portal

How it works (60-second tour)

Ask for Email
User provides email for this service.

Check Email Exists
Confirms email is whitelisted for this service.

Send 2FA Code
Code is sent and verified with the user.

Log Access
User activity is logged for usage stats and reports.

GPT Magic
Your CustomGPT performs its tasks.

Ask for Email
User provides email address.

Send 2FA Code
Code confirms email ownership and prevents throwaways.

Capture + Consent
Email is logged for marketing; clear opt-out included.

Log Access
User activity is logged for usage stats and reports.

GPT Magic
Your CustomGPT performs its tasks.

After Auth or Capture
User has confirmed their email address.

Work with CustomGPT
User interacts with your GPT.

Send Email
CustomGPT can send the user a copy of their output.

Log Email
Subject is logged for usage stats and reporting.

After Auth or Capture
User has completed work with CustomGPT.

Send to Author
CustomGPT offers to send a copy to the author (surveys, interviews, etc.).

Log Email
Email is logged for usage stats and reports.

Receive Details
You receive the email along with the user’s details for follow-up.

Where creators are winning

Paid Cohorts

Lock access with Auth, email summaries to students, and “send to author” weekly reflections for human feedback.

Proposal Makers

Capture verified emails, generate a mini‑proposal, deliver by email, and cc your sales inbox for instant follow‑up.

Research Bots

Run interviews and automatically route structured answers to your research team.

Security & privacy that respects your users

Minimal logging

We record customer #, service #, the email subject line only, and timestamps. We do not store email bodies, IPs, cookies, or device identifiers.

Clear opt‑out

Every capture email includes an unsubscribe link. Opt‑outs are immediate for marketing, and users opt back in automatically if they choose to use your service again.

Full policy

See our UK GDPR/PECR‑aligned policy at tsrs.uk/gptauth/privacy.

Quick FAQ

Only a little — most complete the email code in seconds. The payoff in quality and safety is worth it.

Yes. You’ll know who’s using it, can email results, and can build a verified audience with opt‑out.

Setup is light. Add two actions (authenticate + send) and a small instruction block — we’ll guide you.

Secure, engage, and measure your CustomGPT — without heavy infrastructure.