> For the complete documentation index, see [llms.txt](https://developer.prodege.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.prodege.com/demand/api-reference/project-calls/update-cpi.md).

# Update CPI

| **Update CPI** |                                                                                                                         |
| -------------- | ----------------------------------------------------------------------------------------------------------------------- |
| Description    | Update the CPI of a project beyond IR/LOI pricing grid requirements in order to boost traffic (Real Time Pricing only). |
| Request URL    | *Prodege Base URL +* /project-update-cpi                                                                                |
| Request Method | <mark style="background-color:orange;">POST</mark>                                                                      |

| Request Parameters   |                |                                                                                                            |           |
| -------------------- | -------------- | ---------------------------------------------------------------------------------------------------------- | --------- |
| Parameter Name       | Parameter Type | Description                                                                                                | Required? |
| apik                 | String         | Your API Key.                                                                                              | Yes       |
| request\_date        | Numeric        | Timestamp in milliseconds (see [Authentication](https://developer.prodege.com/demand/authentication)).     | Yes       |
| signature            | String         | The signature of your request (see [Authentication](https://developer.prodege.com/demand/authentication)). | Yes       |
| prodege\_project\_id | Numeric        | The ID that uniquely identifies this project in the Prodege system.                                        | Yes       |
| cpi                  | Numeric        | Cost per completed interview.                                                                              | Yes       |
| external\_update     | Boolean        | Either true or false. Must be set to true in order to set CPI beyond IR/LOI pricing grid requirements.     | Yes       |

| Response Parameters  |                |                                              |
| -------------------- | -------------- | -------------------------------------------- |
| Parameter Name       | Parameter Type | Description                                  |
| *return\_status*     | String         | The return status for this api call          |
| prodege\_project\_id | Numeric        | The id that uniquely identifies this project |