Explore Dynamics 365 OData endpoints

Business Central, Finance & Operations and Dataverse publish OData V4 services with hundreds of entity sets. Their $metadata documents run to many megabytes, which makes them hard to read in a browser tab.

URL patterns

Product	`$metadata`
Business Central (API v2.0)	`https://api.businesscentral.dynamics.com/v2.0/<tenant>/<environment>/api/v2.0/$metadata`
Business Central (web services)	`…/ODataV4/$metadata`
Finance & Operations	`https://<environment>.operations.dynamics.com/data/$metadata`
Dataverse	`https://<org>.crm.dynamics.com/api/data/v9.2/$metadata`

All of them use Microsoft Entra ID (OAuth) tokens. Since the viewer forwards HTTP Basic credentials only, the practical way is to save the $metadata once and upload the file — the viewer reads files of tens of megabytes and stays fast thanks to a virtualised tree.

What helps with these services

Search (Ctrl/⌘ + K) across all entity sets, types and properties.
Focus mode in the ER diagram to draw only one entity and its neighbours.
Markdown export as a starting point for interface documentation.
Core.Description and Common.Label annotations shown next to the technical names.

Open the viewer

Questions

My Dynamics endpoint needs OAuth. Can I use it here?

Not directly — the viewer supports HTTP Basic authentication only. Download the $metadata with a tool that has your token (Postman, PowerShell Invoke-RestMethod) and paste or upload the file; you then get the tree, diagram and exports without live data.