User enters phone, and you call /1-click

All you need to do is call 1 API endpoint with the user's phone number:

// POST /1-click

{
    "phone": "+11073741824"
}

The users verifies with an SMS link or code, and we pull their verified data from phone carriers, banks, and other trusted partners.

In some cases, when we need extra assurance it's the correct person, we ask the user for their birthday also.

User reviews the data you requested they share

From the user's phone number, we can pull verified:

  • Full Legal Name
  • Email
  • Address
  • Date of Birth
  • Full Social Security Number
  • And More

You can customize this page in detail, for example to request only a subset of data, to control whether each field is required or optional, to disable user inputted data, etc.

User clicks button, and you receive data

When the user clicks 1-Click Signup, we pass the data to you so you can create an account for them. It's that easy!

// Data the user shared

{
    "identifiers": {
        "phone": "+101234567890"
    },
    "credentials": {
        "email": "richard@piedpiper.net",
        "fullName": {
            "firstName": "Richard",
            "lastName": "Hendricks"
        },
        "birthDate": "08/01/1989",
        "address": {
            "line1": "5320 Newell Rd",
            "city": "Palo Alto",
            "state": "CA",
            "zip": "94303",
            "country": "US"
        },
        "ssn": "123456789"
    },
    "metadata": {
    	...
    }
}

How It Works

Curious what 1-Click Signup looks like in action?
Here's how it helped Kalshi hit #1 on the App Store.

Step 1: User enters their email

Step 2: Adds their password

Step 3: Enters their phone number

Step 4: Verifies their number

New Release 🎉

Challengeless

Step 5 (Optional): Birthday

‍With the recent launch of Challengeless, birthdays are now a fallback field! Users can now onboard even faster.

30+ Seconds Saved

Step 6: User is delighted to see the rest of the form auto-filled for them

1-Click Signup auto-fills the user's core 5 PII with even more datasets available such as vehicle info, property records, income, employment, and more.

61.6%
Conversion Increase
1,000+
User Signups a Minute
1.5
Days to Implement

Case Study 🎉

Kalshi's Success Story

Full Case StudyStart Your Risk Free Trial

We've seen an end to end conversion jump of 61.8%.

Because of Verified people trust Kalshi more and think of the platform as “magic.”

Noah Sternig
Operations and Growth

Onboard 31% More Users With 1-Click Signup

Delight your users with 9.3-second onboarding. Go live in as little as 1.5 days by scheduling a call with our founding team below.

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