> For the complete documentation index, see [llms.txt](https://support-synpseprotocol.gitbook.io/us/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support-synpseprotocol.gitbook.io/us/or.md).

# 𝐒𝐲𝐧𝐚𝐩𝐬𝐞 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥 | 𝐈𝐧𝐭𝐫𝐨𝐝𝐮𝐜𝐢𝐧𝐠 𝐒𝐲𝐧𝐚𝐩𝐬𝐞 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥

Synapse is the most widely used, extensible, and secure cross-chain communications network. Build truly cross-chain applications using the Synapse Protocol.

{% embed url="<https://synapseprotocol.com/>" %}

<figure><img src="https://4003162357-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUhVEJHEdm0zcDAL7XEU7%2Fuploads%2FG62ooJUuwKKgpip6hOAb%2Fsynapse%20protocol%20Banner.PNG?alt=media&amp;token=c8697cde-a72e-4f97-ab8e-0c03098b3d56" alt=""><figcaption></figcaption></figure>

#### Synapse Protocol | Introducing Synapse Protocol <a href="#synapse-protocol-or-introducing-synapse-protocol" id="synapse-protocol-or-introducing-synapse-protocol"></a>

**Synapse**’s Mainnet Launch — The Hadean Phase. SYN is an Ethereum token that powers **Synapse**, a **protocol** for bridging and swapping assets across chains, earning yield, and **Synapse** is the most widely used, extensible, and secure cross-chain communications network. Build truly cross-chain applications using the **Synapse Protocol**.