Archive RPC

Hey everyone,

I'm currently working on a project and encountering some issues trying to query from block 1. I need an archive node, but the RPCs I've tried so far don't exactly works.

Here is what I've tested:

https://rpc.ankr.com/xdc - This throws an error whenever I query block 1 (I suspect it’s a standard full node and trims historical state).

https://arpc.xinfin.network & https://rpc.xdcrpc.com/ - These seem to have the archive data, but they block my frontend requests (http://localhost:5173) due to CORS policies.

Here is the exact error I get on the latter two:

Access to fetch at 'https://arpc.xinfin.network/' from origin 'http://localhost:5173' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

My questions:

1. Are there any free, public Archive RPC nodes available for XDC that support frontend/CORS requests?

2. If free options aren't available, are there any recommended paid providers that guarantee genesis block queries and allow custom origin headers?

Thanks in advance for any recommendations!