Credit Cards Marketplace

Standard Embed Implementation

Engine's embed code can be placed in any order within your page, but for optimal user experience we recommend placing the script tag within the same div where the content is being rendered.

Basic Embed Syntax

PLEASE NOTE: Your Engine representative will provide you with your specific code snippet. Do not try to reproduce from the sample snippet outlined below.

<script
  async
src="https://www.moneylion.com/network/{channel}/{zone}/web-component/{component-name}/index.js"
  data-embed-type="auto-mount"
></script>

This is a representative example of what our embed code looks like, and contains placeholders as defined below. Placeholders and will be replaced with precise values in the embed code provided to you.

Embed Components

• Channel: placeholder that will be replaced with precise values in the embed code provided to you.

• Zone: placeholder that will be replaced with precise values in the embed code provided to you.

• Component Name: corresponds to the specific product or Engine experience type that's being rendered.

• data-embed-type: enables Engine's auto-mount functionality; without this attribute, the component will not render.

  • Acceptable Value: "auto-mount"

Customization & Auto Sizing

The web component loads iFrame and will automatically fill the container. Embeds are rendered wherever you include our HTML tag on your page and will responsively scale to fill the space available to it.

Credit Cards Specific Syntax

Component Names

• /web-component/credit-cards-search/: A full application-style flow where the user enters key info (income, credit, loan amount, etc.) and Engine returns personalized loan matches in-session. Use this when you want a “start here, answer a few questions, get matched” experience as the primary entry point.

• /web-component/credit-cards-v2/: A browse-and-filter offers experience that leans on data you already have (or have prefilled) to show preview or pre-qualified offers up front. Use this when you want a “see your loan options and refine” experience inside an existing logged-in area or dashboard.

Credit Cards Embed Demo

Top Credit Cards of 2025 | MoneyLionMoneyLion

Client Tags & Prefilling Customer Data

Engine Embeds support the ability to add certain tags with varying use cases, which are outlined in this section.

Use Cases for Client Tags

• Prefilling customer data for certain non-PII fields

  • Decreases friction in the user experience and increases application submission rates

  • Useful when you already have that info on hand for that user, or want the front-end to default to particular values

• Channel Partner Reporting

How to Implement Client Tags for Reporting & Customer Data Prefill

To add client tags in an embed, use the following syntax in the data-tags attribute within the embed script:

tag.key_1=value_1&tag.key_2=value_2

To prerefill fields in an embed, use the following syntax in the data-tags attribute within the embed script:

app.key_1=value_1&app.key_2=value_2

Sample Implementation

"<script 
      async src=\"https://www.moneylion.dev/network/{channel}/{zone}/web-component/generic-offers/index.js\" 
      data-tags=\"tag.clientId=c1&tag.source=email&app.providedCreditRating=&zipcode=\"
      data-embed-type=\"auto-mount\" 
></script>"

In the above example, clientId and source are available as tags for reporting purposes and the embed "credit rating" and "zipcode" fields will be prepopulated when the embed is rendered.

Supported Client Tag Keys

These are the keys that are currently fully supported across all Engine embed types. Please note that the keys below are case-sensitive:

• agentId

• campaignId

• clientId

• deviceid

• medium

• sourceId

• subid

• subid1

• subid2

• subid3

• target

• trafficsource

• userid

If a different key is needed, please reach out to your Partner Manager - we may be able to accommodate, but adding nonstandard keys will increase the time it takes Engine to report Client Tag values back to you and is therefore not recommended.

Supported Keys for Credit Cards Customer Data Prefill

The following is a list of params that can be added to the Credit Cards embed code to prefill in the embed frontend:

Key	Purpose
app.annualIncome	Annual income (number)
app.firstName	First name
app.lastName	Last name
app.email	Email (valid formatting"
app.primaryPhone	Phone number (XXX-XXX-XXXX; must be 10 digits or 11 starting with 1)
app..dateOfBirth	Date of birth (mm/dd/yyyy)
app.address1	Address line 1
app.address2	Address line 2
app.city	City
app.state	State (valid state code, e.g. "CA")
app.zipcode	Zipcode