MetaMask Embedded Wallets (Web3Auth) MCP

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Helps AI coding agents integrate MetaMask Embedded Wallets (Web3Auth) SDKs.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "MetaMask Embedded Wallets (Web3Auth) MCP": {
      "url": "https://mcp.web3auth.io",
      "transport": "streamable-http"
    }
  }
}

Measured tools (5)

• search_docs read-only

  Search MetaMask Embedded Wallets documentation (Algolia) and example projects. Returns doc page links with snippets and matching examples.

  Parameters:

  • query (required) — string — What you are looking for -- e.g. 'React custom auth', 'Android deep linking', 'JWT grouped connections'
  • chain — string — Filter examples by blockchain family
  • category — string — Filter examples by category
  • platform — string — Filter examples by platform

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_doc read-only

  Fetch the full content of a MetaMask Embedded Wallets documentation page by URL. Sources: Algolia, llms.txt, GitHub MDX.

  Parameters:

  • url (required) — string — A docs.metamask.io URL, e.g. https://docs.metamask.io/embedded-wallets/sdk/react/

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_example read-only

  Fetch complete source code of a Web3Auth integration example from GitHub.

  Parameters:

  • name — string — Example name, e.g. 'React Quick Start' or 'Android Firebase'
  • chain — string — Filter by blockchain family
  • category — string — Filter by category
  • platform — string — Filter by platform
  • auth_method — string — Filter by auth method, e.g. 'auth0', 'firebase', 'google', 'grouped'

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_sdk_reference read-only

  Fetch SDK source code (types, interfaces, hooks) from open-source Web3Auth repos.

  Parameters:

  • platform (required) — string — Target platform SDK to fetch source for
  • focus — string — What kind of source to focus on. 'types' = interfaces/types (default, most useful). 'hooks' = React hooks / Vue composables. 'errors' = error types. 'main-class' = SDK implementation. 'all' = everything.
  • module — string — Specific SDK module to fetch, e.g. 'core-types', 'react-hooks', 'modal-types', 'main-class'. Omit to get default type definitions. Call without module first to see available modules.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• search_community read-only

  Search or fetch posts from the MetaMask Embedded Wallets community forum (builder.metamask.io).

  Parameters:

  • query — string — Search query, e.g. 'popup blocked safari', 'JWT error', 'Android unstable connection'
  • topic_id — integer — Discourse topic ID to fetch the full discussion thread

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

Repository

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