# Multi-Chain Transactions + Crypto

Tonomy ID can be used to sign transactions and manage crypto assets on multiple blockchains.

The following protocols and blockchains are currently supported:

1. [WalletConnect](/multi-chain-transactions-+-crypto/wallet-connect.md) on
   1. Ethereum
   2. Polygon
   3. Ethereum Sepolia (Testnet)
2. [Antelepe Signing Requests](/multi-chain-transactions-+-crypto/antelope-sigining-request-esr.md) (Tonomy ID can be used as a replacement for Anchor wallet)
   1. Tonomy Mainnet
   2. Tonomy Testnet (Testnet)

To see testnet coins in a user wallet, go to the app settings and turn on developer mode.


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