> For the complete documentation index, see [llms.txt](https://docs.bitoftrade.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bitoftrade.com/for-developers/cross-chain-messaging-protocol/faq.md).

# FAQ

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<summary>Is the service free? </summary>

Yes, it's completely free and public. You can use it right now for your cross-chain applications.

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<summary>Is it secure? </summary>

Yes, it is. Our Signer Service uses TSS protocol under the hood to make it almost impossible to compromise our signer.

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<summary>Why does it exists?</summary>

There are a lot of different blockchains and networks. Users need to exchange tokens, NFT, and transfer liquidity. CCMP makes it easy to interact between chains.&#x20;

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<summary>How we are different from other solutions? </summary>

We are much more friendly than ChainLink or Multichain. You can use our service without any requirements, you don't need to be whitelisted, etc. \
Also, we are free and open to the community.&#x20;

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