> For the complete documentation index, see [llms.txt](https://even-financial.gitbook.io/developer-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://even-financial.gitbook.io/developer-center/marketplace-integrations/hybrid-api.md).

# Hybrid API

Hybrid API integrations combine your data with an Engine-managed marketplace experience.

{% hint style="success" %}
**Best overall for performance and speed to market.** Use your consumer data without building the full journey.
{% endhint %}

{% columns %}
{% column %}

#### <i class="fa-code">:code:</i> Your role

**Send consumer data**

Call the API with data you already have.
{% endcolumn %}

{% column %}

#### <i class="fa-gauge">:gauge:</i> Effort

**Medium**

You build a backend API connection with Engine, and we handle the frontend experience
{% endcolumn %}

{% column %}

#### <i class="fa-bolt">:bolt:</i> Choose this when

You want Engine to handle compliance with regulated institutions, while also maintaining backend API integration and ability to prefill consumer data
{% endcolumn %}
{% endcolumns %}

### Choose your API

**Offer Wall API** returns matched offers and a hosted results page. Render offers yourself or redirect consumers to Engine.

**Second Party Prefill API** passes partial consumer data into a hosted or embedded application. It does not return offers.

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Offer Wall API</strong></td><td>Call Engine's API to generate matched offers using consumer data you already have, then render them yourself or redirect to Engine's hosted results page.</td><td><a href="/pages/KwgbRNY5yTxc2Byf5PXo">1st &#x26; 2nd Look Marketplace ↗</a></td><td><a href="/pages/fE0IGwkJexRfGM4TOUns">New Marketplaces - Offer Carousel ↗</a></td><td><a href="/pages/KOrTDU5l608GyBGXLNT5">/pages/KOrTDU5l608GyBGXLNT5</a></td><td></td></tr><tr><td><strong>Second Party Prefill API</strong></td><td>Pass partial consumer data to Engine to pre-populate a hosted or embedded application, reducing how much the consumer has to re-enter.</td><td><a href="/pages/c931d9f13b119e10ff20ff1be3496b79bbbd30f4">Loans Marketplaces ↗</a></td><td><a href="/pages/be122c10a2a2ce5fe5a5914da2e9b37ac648490b">Credit Cards Marketplace ↗</a></td><td><a href="/pages/KOrTDU5l608GyBGXLNT5">/pages/KOrTDU5l608GyBGXLNT5</a></td><td></td></tr></tbody></table>


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