Onboarding
New user signs up.
Everything's already connected.
Your product needs users to set up other systems before it can do its job. Deck handles that setup: inside payroll, inside the carrier portal, inside whatever your product depends on. Day one looks like day thirty.
ADP
UnitedHealthcare
IRS
Built for automated onboarding
Your users shouldn’t have to configure external systems before your product works. Deck logs into those portals and completes setup on their behalf.
No portal API required
Most external systems don’t have APIs for onboarding actions. Payroll platforms, benefits portals, government sites. Deck operates them through the browser, the same way a person would.
Authentication built in
Your user links their accounts through your app. Deck stores the credentials, handles MFA, and establishes authenticated sessions so it can complete setup inside each portal.
Setup complete, instant confirmation
Every setup returns structured confirmation. Portals configured, actions completed, status verified. Your user is ready to go from the moment they sign up.
Connect. Setup. Confirm.
Store your user’s portal credentials, trigger the setup, and get confirmation when it’s done.
{ "auth_method": "username_password", "auth_credentials": { "username": "[email protected]", "password": "••••••••" }, "source_id": "src_adp", "external_id": "user_123" }
Store portal credentials
Your user provides their login for the external portal through your app. Store it in Deck Vault via the API. Keep it for ongoing access or delete after setup.
{ "credential_id": "cred_a1b2...", "input": { "action": "complete_setup", "setup_tasks": ["direct_deposit", "benefits_enroll", "w4_update"] } }
Run the setup
One API call triggers setup. Deck agents log into the external portals, complete the configuration, and confirm every action succeeded.
{ "status": "completed", "setup_status": "complete", "actions_completed": 3, "portals": [ { "name": "ADP", "status": "configured" }, { "name": "UHC", "status": "configured" } ], "runtime_ms": 12400 }
Get setup confirmation
Results arrive as structured JSON. Every portal configured, every action confirmed. Ready for your user to start using your product.
Who’s this for?
Rewards & loyalty
User links their rent or payment portal. Deck activates the rewards program, updates the payment method, and your product works from day one.
Payroll & HR platforms
Deck connects to carrier and benefits portals to complete enrollment on behalf of the user. Direct deposit, benefits selection, tax withholding — all done at signup.
Property tech
User links their city or utility portal. Deck completes tax setup, payment configuration, or account transfers so your product works from day one.
Vertical SaaS
Any product that depends on external system configuration during onboarding. Deck handles the setup so your users don’t have to.
FAQ
Payroll systems, benefits portals, government sites, utility providers, carrier portals, and more. Most of these don’t have APIs for onboarding actions. Deck operates them through the browser.
Yes. Deck handles OTP, SMS codes, passkeys, and CAPTCHAs automatically. Your user authenticates once through your app, and Deck manages the session from there.
Deck agents adapt to UI changes. They operate the portal the same way a person would, so minor layout changes don’t break the flow. We monitor portal health and update agents proactively.
Every action is confirmed individually. If a step fails, Deck reports exactly what succeeded and what didn’t, so you can retry or surface the issue to the user.
Minimally. Deck plugs into your existing signup flow. You keep control of the UX. Deck handles the portal configuration behind it.
Setup time depends on the number of portals and actions involved. Most configurations complete in seconds. Multiple portals are accessed in parallel.