MetaMask Embedded Wallets (Web3Auth) MCP

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

Should I use this

Quality & Safety

A
Description quality
96%
Schema completeness
96%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~957Tokens (tool definitions)
~1.6 KBTypical response size
Moderate attention impact (0.75% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "mcp-server": {
      "url": "https://mcp.web3auth.io"
    }
  }
}

Remote endpoints

https://mcp.web3auth.iostreamable-http

What it can do

Tool inventory

Tools (5)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢search_docs(query, platform, chain, category)

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

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "What you are looking for -- e.g. 'React custom auth', 'Android deep linking', 'JWT grouped connections'"
    },
    "platform": {
      "description": "Filter examples by platform",
      "type": "string",
      "enum": [
        "react",
        "vue",
        "js",
        "react-native",
        "android",
        "ios",
        "flutter",
        "unity",
        "unreal",
        "node"
      ]
    },
    "chain": {
      "description": "Filter examples by blockchain family",
      "type": "string",
      "enum": [
        "evm",
        "solana",
        "other"
      ]
    },
    "category": {
      "description": "Filter examples by category",
      "type": "string",
      "enum": [
        "quick-start",
        "custom-auth",
        "blockchain",
        "feature",
        "playground"
      ]
    }
  },
  "required": [
    "query"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_doc(url)

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

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "A docs.metamask.io URL, e.g. https://docs.metamask.io/embedded-wallets/sdk/react/"
    }
  },
  "required": [
    "url"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_example(name, platform, chain, category, auth_method)

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

Input Schema

{
  "type": "object",
  "properties": {
    "name": {
      "description": "Example name, e.g. 'React Quick Start' or 'Android Firebase'",
      "type": "string"
    },
    "platform": {
      "description": "Filter by platform",
      "type": "string",
      "enum": [
        "react",
        "vue",
        "js",
        "react-native",
        "android",
        "ios",
        "flutter",
        "unity",
        "unreal",
        "node"
      ]
    },
    "chain": {
      "description": "Filter by blockchain family",
      "type": "string",
      "enum": [
        "evm",
        "solana",
        "other"
      ]
    },
    "category": {
      "description": "Filter by category",
      "type": "string",
      "enum": [
        "quick-start",
        "custom-auth",
        "blockchain",
        "feature",
        "playground"
      ]
    },
    "auth_method": {
      "description": "Filter by auth method, e.g. 'auth0', 'firebase', 'google', 'grouped'",
      "type": "string"
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_sdk_reference(platform, module, focus)

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

Input Schema

{
  "type": "object",
  "properties": {
    "platform": {
      "type": "string",
      "enum": [
        "react",
        "vue",
        "js",
        "react-native",
        "android",
        "ios",
        "flutter",
        "unity",
        "unreal",
        "node"
      ],
      "description": "Target platform SDK to fetch source for"
    },
    "module": {
      "description": "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.",
      "type": "string"
    },
    "focus": {
      "default": "types",
      "description": "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.",
      "type": "string",
      "enum": [
        "types",
        "hooks",
        "main-class",
        "errors",
        "all"
      ]
    }
  },
  "required": [
    "platform"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢search_community(query, topic_id)

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

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "description": "Search query, e.g. 'popup blocked safari', 'JWT error', 'Android unstable connection'",
      "type": "string"
    },
    "topic_id": {
      "description": "Discourse topic ID to fetch the full discussion thread",
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Community

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Evidence

Recent observations

verifiedversion not recorded5 tools
verifiedversion not recorded5 tools