Hi! Since you have managed to get a bearer token I will assume you’ve already gone through the Getting Started docs. If not; that would be a good start.
From there is all depends on what sort of application you are looking to build. In most cases, we recommend that developers build out a local database and map TCGplayer Product and SKU ids to their own catalog data (although you can certainly pull down out catalog to get you started).
From there, you can use that productId and skuId to start pulling down prices using the
/pricing/ endpoints. In your case; if you are looking for the TCGplayer Market Price; you’ll use the following endpoints:
Let us know if you have any additional questions!