GLMRUSDT
GLMR / Tether USD
crypto Composite

I have a cheaper way,
Step 1:
Buy USDC on Coinbase 1:1 with USD.
Step 2:
Buy GLMR with the USDC
Step 3:
Withdraw your GLMR from Coinbase to your Moonbeam Address
Step 4:
Send your GLMR to Hydration.
Step 5:
Sell your GLMR for USDC.
You will pay on fees no more than $0.001443534.

Here is the cheapest way to on-board to Polkadot through USDC... before Hyperbridge or Snowbridge bring in USDC.....
Step 1:
Buy USDC on Coinbase at 1:1 the US dollar. No money lost yet.
Step 2:
Once your USDC is transferable, transfer your USDC to a BASE wallet. No Transactions fees paid.
Step 3:
Swap a tiny portion of your USDC in the native BASE app swapping. Maybe do like $2. That should be more than plenty for the BASE fees. If for some reason they are more, then you can simply swap a little more. This should be cheap, you might just been good with 1$.
So far you have lost like three dollars.
Step 4:
You will need to use the SQUID Router. This is a cross chain bridge that implements Moonbeam.
app.squidrouter.com
Firstly, swap at most $.5 cents of your USDC to GLMR on moonbeam.
This will pay for your moonbeam fees.
So far lost... Maybe three dollars.
Step 5:
Now, you are ready to swap your USDC to the moonbeam network using the Squid Router.
Swap from USDC on base to xcUSDC on Moonbeam.
You should have enough to pay transaction fees because of earlier.
You can run a test swap to make sure everything goes through. You should see the funds in squid router once swap transaction is complete.
Your loss should be almost zero through this transaction process.
Execute the swap.
Step 6:
Now you need install Nova Wallet from the app store.
While it is installing, get your passphrase from Base Wallet.
Once you have your passphrase, open up Nova Wallet and import existing wallet. Input the passphrase and hit enter.
Once you import the wallet. You should now see your USDC on the Moonbeam network! Hooray!
Step 7:
Now you can swap this USDC to the Hydration network or whatever you want on the Polkadot.
All together, this is the current cheapest way to get your US Dollar to the Polkadot Network at the time of posting this. Let me know if I am wrong!
Thank you for reading this! Let me know if you have any questions!
*not financial advice, do your own research... Test with a few dollars to play safe first.

I have a cheaper way,
Step 1:
Buy USDC on Coinbase 1:1 with USD.
Step 2:
Buy GLMR with the USDC
Step 3:
Withdraw your GLMR from Coinbase to your Moonbeam Address
Step 4:
Send your GLMR to Hydration.
Step 5:
Sell your GLMR for USDC.
You will pay on fees no more than $0.001443534.

Here is the cheapest way to on-board to Polkadot through USDC... before Hyperbridge or Snowbridge bring in USDC.....
Step 1:
Buy USDC on Coinbase at 1:1 the US dollar. No money lost yet.
Step 2:
Once your USDC is transferable, transfer your USDC to a BASE wallet. No Transactions fees paid.
Step 3:
Swap a tiny portion of your USDC in the native BASE app swapping. Maybe do like $2. That should be more than plenty for the BASE fees. If for some reason they are more, then you can simply swap a little more. This should be cheap, you might just been good with 1$.
So far you have lost like three dollars.
Step 4:
You will need to use the SQUID Router. This is a cross chain bridge that implements Moonbeam.
app.squidrouter.com
Firstly, swap at most $.5 cents of your USDC to GLMR on moonbeam.
This will pay for your moonbeam fees.
So far lost... Maybe three dollars.
Step 5:
Now, you are ready to swap your USDC to the moonbeam network using the Squid Router.
Swap from USDC on base to xcUSDC on Moonbeam.
You should have enough to pay transaction fees because of earlier.
You can run a test swap to make sure everything goes through. You should see the funds in squid router once swap transaction is complete.
Your loss should be almost zero through this transaction process.
Execute the swap.
Step 6:
Now you need install Nova Wallet from the app store.
While it is installing, get your passphrase from Base Wallet.
Once you have your passphrase, open up Nova Wallet and import existing wallet. Input the passphrase and hit enter.
Once you import the wallet. You should now see your USDC on the Moonbeam network! Hooray!
Step 7:
Now you can swap this USDC to the Hydration network or whatever you want on the Polkadot.
All together, this is the current cheapest way to get your US Dollar to the Polkadot Network at the time of posting this. Let me know if I am wrong!
Thank you for reading this! Let me know if you have any questions!
*not financial advice, do your own research... Test with a few dollars to play safe first.