In colored coin protocol, I know how to create an asset in a platform. I also can view the created asset. But I want to confirm it from other platforms. How to create an asset seems not to be a standard. During creating an asset, I used a lot of metadata. I just want to see these metadata in other platforms.
The metadata is typically encoded as OP_RETURN value,
and you ought to see it in standard block explorer.
In case you want to just see metadata, that is enough.
If you want to decode the data, I think you could just use a color-aware
wallet. Details depend on the protocol of your choice.