# Custom Bid Router

Custom Bid Router further extends the BYOA architecture allowing advertisers to apply their own bidding algorithms in their own ecosystem. The MediaMath system will invoke an external call to the client with the bid request and await a response that MediaMath can use in our internal auction. Forwarded bid requests adhere to OpenRTB v2.4 format and may be enriched with certain information such as segment membership and pixel recency.

## Configuration Summary

 - [GET /custombidrouter/{org_id}/configuration](https://apidocs.mediamath.com/apis/byoa-api/custom-bid-router/summary-bidvaluator-organization.md): Get a summary of the service consisting of the defined executors, environments, and endpoints. This summary will help you identify that you have correctly configured all your endpoints for all the regions

## Executor Details

 - [GET /custombidrouter/{org_id}/executors/{executor_id}](https://apidocs.mediamath.com/apis/byoa-api/custom-bid-router/get-executor-details.md): The details of the Custom Bid Router executor and all attached Endpoints


## Executor Update

 - [PATCH /custombidrouter/{org_id}/executors/{executor_id}](https://apidocs.mediamath.com/apis/byoa-api/custom-bid-router/patch-executor-details.md): The sample rate defines the percentage of the bid opportunities that are forwarded to your endpoints. The sample rate can be adjusted by the client collectively for all endpoints of an executor. This feature is useful to manage and budget system utilization.