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

# Welcome to BaaS

The backend platform for blockchain apps, with auth, networks, and more for your EVM project.

**BaaS is the backend platform for blockchain apps.** Add wallets, authentication, and onchain features to your app.

BaaS is made of several products. Pick the one you need.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>BaaS MCP</strong></td><td>Connect your AI coding agent to your project to inspect it, configure it, and read the docs. <strong>Docs available.</strong></td><td><a href="/ai-tools/mcp.md">BaaS MCP</a></td></tr><tr><td><strong>BaaS SDK</strong></td><td>Authenticate your users from any web app with passkeys or external wallets. <strong>Docs available.</strong></td><td><a href="/baas-sdk/sdk.md">Introduction</a></td></tr><tr><td><strong>BaaS CLI</strong></td><td>Deploy your Foundry smart contracts and register them with BaaS in one command. <strong>Docs available.</strong></td><td><a href="/baas-cli/cli.md">Introduction</a></td></tr><tr><td><strong>BaaS Dashboard</strong></td><td>Manage your project's Vault, blockchain settings, and RPC access. <strong>Docs available.</strong></td><td><a href="/dashboard/vault.md">Vault</a></td></tr><tr><td><strong>BaaS Console</strong></td><td>Automate and configure your project: automations, contracts, users, API keys, and the Vault. <strong>Docs available.</strong></td><td><a href="/baas-console/console.md">Introduction</a></td></tr></tbody></table>

## Start with the SDK

The **BaaS SDK** lets you sign your users in with a passkey or an external wallet, in a few lines of code.

<a href="/baas-sdk/quickstart.md" class="button primary">Get started →</a>

## What you can build

* **Passwordless sign-in** with a passkey: Face ID, Touch ID, or Windows Hello.
* **Wallet sign-in** for MetaMask, Rainbow, Coinbase Wallet, and other browser wallets.
* **Multi-chain.** Your app works across every EVM network enabled on your project.