"Unauthorized ankr account for API key"

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I try to transfer USDC from Ethereum to Aptos Mainnet using CCTP manually but it shows the error message “Error: could not coalesce error (error={ “code”: -32000, “message”: “Unauthorized: You must authenticate your request with an API key. Create an account on https://www.ankr.com/rpc/ and generate your personal API key for free.”“

On testnet, I can transfer USDC from Sepolia to Solana but when I want to test with mainnet, it meets this error. Please help me !!!

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Hello, unfortunately this forum isn’t the right place to be asking developer-related questions.

Please join our Discord community where you can ask in our builder questions channel.