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

Rate this Server

Evidence

Recent observations

verifiedversion not recorded5 tools
verifiedversion not recorded5 tools
verifiedversion not recorded5 tools
verifiedversion not recorded5 tools
verifiedversion not recorded5 tools
verifiedversion not recorded5 tools
verifiedversion not recorded5 tools