> For the complete documentation index, see [llms.txt](https://docs.emblem.wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emblem.wiki/emblem-developer-platform/emblem-signers.md).

# Emblem Signers

[**Emblem Signers**](https://emblemvault.dev/auth-signers-demo) are a core component of the Emblem Vault platform designed to provide **secure, multi-chain authentication and signing operations** for web3 applications. They serve as the bridge between developers and complex blockchain signing processes across different networks.

<figure><img src="/files/R7zSTgKjC0zOMjn1snVe" alt=""><figcaption></figcaption></figure>

#### Key Features & Capabilities:

* **🔗 Multi-Chain Integration**: Native support for Ethereum, Solana, and Bitcoin networks
* **📝 Versatile Signing Methods**:
  * **EVM Signing** with popular libraries (Viem, Ethers.js)
  * **Solana Operations** for SPL tokens and programs
  * **Bitcoin PSBT Signing** for Bitcoin transactions
* **⚛️ React Integration**: Ready-to-use React examples and components
* **🔐 Flexible Authentication**: Both session-based and token-based auth methods

#### Technical Architecture:

Emblem Signers abstract away the complexity of different blockchain signing mechanisms, providing developers with **unified interfaces** for wallet operations across chains. Instead of learning separate signing processes for each blockchain, developers can use consistent APIs regardless of the target network.

#### Unique Value Proposition:

**Emblem Signers eliminate the fragmentation problem in multi-chain development**—they provide a single, coherent signing solution that works across Ethereum, Solana, and Bitcoin ecosystems. This means developers can build truly cross-chain applications without needing to master the intricacies of each blockchain's signing protocols.