# Contributor's backtest guide

### 1. Integration via Contributor API endpoint

The Contributor first needs to create API and join the LenderLink platform per the [Contributor API development guide](/product-guides/api-integration-guides/contributor-api-development-guide.md)

### 2. Authentication

The Contributor needs to create different set of credentials for the API that are going to be used only for running backtests.

### 3. API requests 

The expected layout of the requests that LenderLink's API will send to the Contributors for backtesting is show below. 

* Query params:

{% hint style="info" %}
The **requestID** will be always in the format - backtest\[YYYYMMDD]\[prospect ID]\[5 digits] 

Example: backtest20250121aa00010000
{% endhint %}

<table><thead><tr><th width="171">Property Name</th><th width="147">Property Type</th><th>Mandatory</th><th>Description</th></tr></thead><tbody><tr><td>requestId</td><td>String</td><td>Yes</td><td>Unique identifier</td></tr><tr><td>mobileNumber</td><td>String</td><td>Yes</td><td>Borrower's mobile number</td></tr><tr><td>prospectID</td><td>String</td><td>No</td><td>Unique identifier that we give to all prospect clients that we do backtest for. Example: aa000</td></tr></tbody></table>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.lenderlink.ph/backtesting-guides/contributors-backtest-guide.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.