Document Solana wallet standard support

[alexandratran]

Description

Add page in "Use non-EVM networks" section to describe Solana wallet standard support.

Preview

https://metamask-docs-r16b7w3d0-consensys-ddffed67.vercel.app/wallet/how-to/use-non-evm-networks/solana/

Checklist

Complete this checklist before merging your PR:

• [ ] If this PR contains a major change to the documentation content, I have added an entry to the top of the "What's new?" page.
• [ ] The proposed changes have been reviewed and approved by a member of the documentation team.

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Name	Status	Preview	Comments	Updated (UTC)
metamask-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 28, 2025 4:51am

[vandan]

Thanks for getting us started. I'm just jotting down some ideas for additional developer questions that these docs might address:

• Is development on Solana supported in MetaMask (ex. testnet, devnet, local)?
• Where can I learn about what Solana features or capabilities are supported (user-facing features)?
• Where can I submit improvement requests?

Of course, I'll work on getting answers for some of these.

[vandan]

Thanks for getting us started. I'm just jotting down some ideas for additional developer questions that these docs might address:

• Is development on Solana supported in MetaMask (ex. testnet, devnet, local)?
• Where can I learn about what Solana features or capabilities are supported (user-facing features)?
• Where can I submit improvement requests?

Of course, I'll work on getting answers for some of these.

We anticipate that the third-party connector libraries Dynamic, Privy, and Reown will detect and handle MetaMask out-of-the box.

We will have support for Solana Devnet at launch (they just have to enable testnets after opting-in to Solana in the UI).

[vandan]

Should we mention anything regarding multichain support?

We should qualify our Wallet Standard support as being Solana-specific. We can consider mentioning the Multichain API in this Solana section along with a separate PR.

[vandan]

@alexandratran Solana test networks are no longer included in the initial release (wasn't sufficiently completed/stable) - still available in Flask though.

[vandan]

We need to mention something about this applying to the MetaMask extension only, with support for Solana dapp connections coming to MetaMask Mobile soon.