Multifactor | Secure Online Account Sharing for Humans & AI
So much more than a password manager
Share online accounts with humans and AI agents, just by sending a link.
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Free forever
Cross platform
Easy to switch
Multifactor (YC F25): Share Online Accounts with Humans & AI Agents - YouTube
Multifactor (YC F25): Share Online Accounts with Humans & AI Agents
Multifactor232 subscribers
Checkpoint: A Secure, Programmable Proxy for Sharing Online Accounts
2 months ago — Link
Multifactor: Share Online Accounts with Humans & AI Agents (0:59)
10 months ago — Link
Multifactor acquires Keypo to accelerate zero-trust security for AI agents
3 months ago — Link
Feature: Checkpoint: Instant access revocation
10 months ago — Link
Feature: Extension: One-click logins
10 months ago — Link
Goodbye Password Managers. Hello Multifactor.
Password managers are broken. We changed the game with secure one-click sharing, instant revocation, and powerful agentic integrations.
Password Managers
Scattered Credentials
Unsafe Sharing
Untraceable Access
MULTIFACTOR
Unified Platform
Granular Sharing
Detailed History
The World's Best Account Manager
Multifactor redefines zero-trust account management with fine-grained sharing, detailed audit trails, and a world-class security architecture.
Unified Secure Platform
Multifactor puts all of your online accounts at your fingertips in one secure, easy-to-use vault, available on any device you need it.
Instant Access Control
Because actual passwords are never shared, access changes take instant effect—no password resets required.
Multi-Factor Management
What's in a name? Multifactor lets you manage passwords, passkeys, 2FA codes, and more in one secure, unified vault.
Fine-Grained Permissions
Don't just share full access—share specific permissions, like “read transactions” but not “make transfers.”
Detailed Event History
See not only who accessed which accounts, but also what they did with them, paired with a digital signature that provides non-repudiable cryptographic proof.
Zero Trust Cryptography
Our zero-trust architecture uses advanced post-quantum encryption techniques to ensure that nobody else (not even us) can access your credentials without posessing all of your root authentication factors.
Multi — The Secure Account Using AI Assistant
Multi is an AI agent that can securely access your own accounts when asked, just by storing them in Multifactor. Strong access controls ensure you remain in control throughout the process.
Natural Language Commands
Chat with Multi just like your favorite AI assistant. Watch as it securely uses your own accounts to automate tasks and provide personalized answers.
Cross-Account Access
Multi can securely log in to any online account you have stored in Multifactor. No additional configuration needed.
Secure Account Use
Multi loads your accounts in a secure, isolated cloud browser. Raw credentials are never visible to the AI or transmitted to third parties.
Strongly Enforced Permissions
Multi can only access the specific account features you allow. You'll know as soon as it tries to do something new, so you can approve or deny the request.
Powerful Automations
Create reusable playbooks that combine natural language commands and pre-configured permissions to automate complex tasks with a single click.
A Foundation of Innovative Research
Multifactor is built on a decade of user-centric identity security research, focusing on cryptographic solutions that enhance security without compromising user experience. Our award-winning work, published in top academic venues like USENIX Security, PETS, IEEE EuroS&P, ACM UIST, and ACM CHI, is preferred over legacy identity solutions by end users and security practitioners alike.
Frequently Asked Questions
How much does Multifactor cost?
How is Multifactor different from a password manager?
Is it safe to store all of my factors together?
How can I share accounts without sharing passwords?
Is it safe to share my accounts with AI agents?
What makes Multifactor “post-quantum” secure?
What accounts can I use Multifactor with?
What if I already store passwords somewhere else?
Simple, Transparent Pricing
All of our baseline features are free and unlimited for individuals and small groups. When you're ready to scale, our enterprise plans offer advanced features and dedicated support.
Consumer
Free
Perfect for personal use
- Unlimited accounts and passwords
- Unlimited sharing with friends and family
- Available across all of your devices
Enterprise
Custom
For teams and organizations
- Advanced auditing and compliance
- Priority customer support and SLAs
- Cloud RBAC and SSO integrations
Ready to Experience The Future of Account Security?
The wait is finally over! Sign up today and be amongst the first to discover your new favorite account manager and portal to the agentic web.