How to Use MineBridge

This guide walks you step-by-step through the bridging process on MineBridge.

Once you’ve prepared your wallets and gas (see Getting Started), you’re ready to bridge.

MineBridge by RuneMine → https://app.runemine.com/bridge

🟄 Bridging Runes Bitcoin ⇆ Solana/NEAR

Step 1: Connect Your Bitcoin Wallet

Open the MineBridge and connect your Bitcoin wallet by clicking the 'Connect Wallet' button in the top right corner of the app.

  • Bitcoin Wallet: We highly recommend using Xverse or another dedicated Bitcoin wallet. These wallets have the most reliable Runes support. Phantom wallet does not yet have UI support for Runes, so it is not recommended (or possible) when bridging from Bitcoin.

Make sure the Bitcoin wallet you connect holds the Runes tokens you want to bridge.

Step 2: Select the Origin and Destination Chains

In the “From / To” selectors at the top of the bridge UI, choose the direction of your bridge:

  • Bitcoin → Solana / NEAR (sending Runes from Bitcoin).

  • Solana / NEAR → Bitcoin (bridging tokens back onto Bitcoin as Runes).

  • Solana/NEAR → Solana/NEAR (some supported tokens can also bridge between Solana and NEAR)

Step 3: Select the Token

Click the token dropdown and choose the Rune you want to bridge.

  • The MineBridge UI only shows tokens that are currently supported.

  • If a token is not visible, it cannot be bridged at that time.

Want to bridge a token that's not supported yet? Reach out to our team to discuss launching your token as a cross-chain Bitcoin asset.

Step 4: Connect Destination Wallet

Bridging to Solana

If your destination chain is Solana, you will need to connect your Solana wallet before continuing. Click 'Connect Solana Wallet' to open the Solana wallet selector menu.

Most major Solana wallet providers are supported on the MineBridge. Locate and select the wallet provider you wish to receive the SPL tokens. Approve the connection request in your wallet popup.

Once connected, your Solana address will automatically appear in the destination address field. To disconnect your wallet, simply click 'Disconnect'. You can also manually paste a Solana address into the field by clicking 'Edit' and pasting a Solana address.

Important: Always double-check the destination address you connect or paste. Once a bridge transaction is submitted, it cannot be changed or reversed. If the address is incorrect, the tokens will be lost and cannot be recovered.

Bridging to NEAR

If your destination chain is NEAR, you will need to connect your NEAR account. Click 'Connect NEAR Wallet' to open the NEAR wallet selector menu.

MineBridge supports both MyNearWallet and Meteor Wallet. You can import your NEAR account into either of these if your NEAR wallet of choice is not supported.

Unlock and connect your NEAR wallet. Once connected you will see the connected NEAR wallet displayed in the MineBridge UI. You can disconnect by clicking 'Disconnect'.

Step 5: Enter the Amount

Type the total amount of tokens you want to bridge into the input field.

  • You can also click the wallet icon to enter the maximum amount of tokens in your wallet.

  • The bridge will automatically display the estimated amount of tokens you’ll receive after fees.

  • Always check that the displayed amount matches your expectations.

Step 6: Choose the Network Fee (Bitcoin only)

If your origin chain is Bitcoin, you must select the network fee you’re willing to pay for miners to confirm your transaction:

  • Slow - Lowest cost, longest wait.

  • Medium - Balanced speed and cost.

  • Fast - Highest cost, quickest confirmation.

  • Custom - Enter your own sat/vB preference.

If your origin chain is Solana or NEAR, the gas is calculated automatically by the network and usually confirms instantly. You don’t need SOL or NEAR for gas. MineBridge automatically covers network fees using the 0.5% - 1% bridge fee.

Step 7: Start the Bridge

Final Check: Confirm the token, amount, destination address, and selected fees. Once you click Bridge and approve the transaction, it cannot be reversed.

When ready, click 'Bridge'. Your wallet will prompt you to confirm the transaction.

  • Check the transaction details, approve it, and the transaction will be sent to the network.

  • On Bitcoin, the transaction must receive at least 3 block confirmations before it is reflected on the destination chain.

Reminder: Your Bitcoin transaction won’t appear on the destination chain until it has 3 Bitcoin block confirmations. This usually takes around 30 minutes and helps secure the bridge against network re-orgs.

You'll be able to view the transaction and track the progress on-chain via the transaction history.

Got an issue? If your transaction is still pending after 3 block confirmations, or if you encounter an error, open a support ticket in the official RuneMine Discord and provide your transaction ID, wallet address and other relevant details. Our team will check it out and help to resolve any issues.

🟄 Official MineBridge Support → https://discord.gg/runemine

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