Server data from the Official MCP Registry
Helps AI coding agents integrate MetaMask Embedded Wallets (Web3Auth) SDKs.
Helps AI coding agents integrate MetaMask Embedded Wallets (Web3Auth) SDKs.
Remote endpoints: streamable-http: https://mcp.web3auth.io
This MCP server provides documentation and SDK information for MetaMask Embedded Wallets. The code is well-structured with proper authentication handling via optional GitHub tokens and appropriate permissions for a developer tools server. Minor code quality improvements could be made around error handling patterns. Supply chain analysis found 9 known vulnerabilities in dependencies (0 critical, 4 high severity).
5 files analyzed · 11 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
This plugin requests these system permissions. Most are normal for its category.
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
From the project's GitHub README.
Build MetaMask Embedded Wallets integrations faster by giving your AI coding assistant live access to the documentation and deep knowledge of the SDK.
There are two things to set up:
| Tool | What it does |
|---|---|
search_docs | Search documentation and example projects |
get_doc | Fetch the full content of any doc page |
get_example | Fetch complete source code of an integration example |
get_sdk_reference | Fetch SDK types and hooks from the open-source repos |
search_community | Search the MetaMask Builder Hub for real user issues |
The skill teaches your AI assistant the mental model for MetaMask Embedded Wallets. It includes SDK selection logic, key derivation rules, authentication concepts, platform quirks, and common mistakes that aren't obvious from the docs alone.
Tip: For the best experience, use the MCP server alongside the skill so that your LLM can fetch live docs and examples rather than relying on static text.
npx skills add Web3Auth/web3auth-mcp --skill web3auth -y
The skills CLI by Vercel detects your active AI agent and installs to the right directory automatically — Cursor, Claude Code, Copilot, Kiro, Cline, Codex, Antigravity, and 40+ more.
To install globally (available in all projects) or target a specific agent:
npx skills add Web3Auth/web3auth-mcp --skill web3auth -g -y # global
npx skills add Web3Auth/web3auth-mcp --skill web3auth -a cursor -y # Cursor only
npx skills add Web3Auth/web3auth-mcp --skill web3auth -a claude-code -y # Claude Code only
npx degit Web3Auth/web3auth-mcp/skills/web3auth .cursor/skills/web3auth
Cursor picks up any SKILL.md inside .cursor/skills/ automatically and activates it when relevant.
Or install via Cursor Marketplace — search "MetaMask Embedded Wallets".
npx degit Web3Auth/web3auth-mcp/skills/web3auth /tmp/web3auth-skill
cat /tmp/web3auth-skill/SKILL.md >> CLAUDE.md
Open Claude Desktop → Settings → Custom Instructions and paste the contents of skills/web3auth/SKILL.md directly.
npx degit Web3Auth/web3auth-mcp/skills/web3auth .agent/skills/web3auth
Antigravity picks up skills inside .agent/skills/ automatically. For global installation across all
projects, use ~/.gemini/antigravity/skills/ instead.
npx degit Web3Auth/web3auth-mcp/skills/web3auth .windsurf/skills/web3auth
Place the skill in the tool-specific skills directory. Most tools also accept pasting the contents of SKILL.md into a system prompt or custom instructions field.
For any LLM tool with a system prompt or custom instructions field, paste the contents of
skills/web3auth/SKILL.md directly.
The fastest way is one click:
Or install via Cursor Marketplace — search "MetaMask Embedded Wallets".
Or add it manually. Open Cursor Settings → Tools & Integrations → MCP and add:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
Install from the Visual Studio Marketplace — search "MetaMask Embedded Wallets", or:
code --install-extension Web3Auth.metamask-embedded-wallets
Or use the one-click install URL:
vscode:mcp/install?{"name":"web3auth","url":"https://mcp.web3auth.io"}
Or add manually to your workspace .vscode/mcp.json:
{
"servers": {
"web3auth": {
"type": "http",
"url": "https://mcp.web3auth.io"
}
}
}
Install from the JetBrains Marketplace — search "MetaMask Embedded Wallets".
Or add manually in Settings → Tools → AI Assistant → Model Context Protocol (MCP):
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io",
"transport": "http"
}
}
}
claude mcp add --transport http web3auth https://mcp.web3auth.io
Or add manually to your project's claude.json:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
Open your Claude Desktop configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.jsonAdd the server to the mcpServers section:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
Restart Claude Desktop and ask: "Search MetaMask Embedded Wallets docs for React quick start" to verify the connection.
Open ChatGPT Desktop → Settings → Connections and add a new MCP server:
https://mcp.web3auth.ioOpen Windsurf Settings → MCP and add:
{
"mcpServers": {
"web3auth": {
"serverUrl": "https://mcp.web3auth.io"
}
}
}
Or edit ~/.codeium/windsurf/mcp_config.json directly.
Add to your project's .kiro/settings/mcp.json:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
In Warp, open Settings → AI → MCP Servers and click Add Server:
https://mcp.web3auth.ioOr use Warp's one-click MCP install if available in your version.
Add to your Cline MCP settings (Ctrl+Shift+P → "Cline: Open MCP Settings"):
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io",
"transport": "http"
}
}
}
Add to your Continue config.json (open with Ctrl+Shift+P → "Continue: Open config.json"):
{
"mcpServers": [
{
"name": "web3auth",
"url": "https://mcp.web3auth.io"
}
]
}
Add to your Zed settings.json (Cmd+, to open):
{
"context_servers": {
"web3auth": {
"command": {
"path": "npx",
"args": ["-y", "mcp-remote", "https://mcp.web3auth.io"]
}
}
}
}
Or install via Zed Extensions — search "MetaMask Embedded Wallets".
Open your MCP configuration file:
~/.config/antigravity/mcp.json%APPDATA%\antigravity\mcp.jsonAdd the server to the mcpServers section:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
Antigravity hot-reloads MCP config changes — no restart required.
Xcode 26.3+ supports MCP via GitHub Copilot. Add the server to your Copilot MCP config or use the VS Code extension setup above (Copilot MCP registry is shared).
Alternatively, configure Xcode's agentic tools to point at https://mcp.web3auth.io directly via Settings → Copilot → MCP Servers.
Eclipse with GitHub Copilot supports MCP. Add via Eclipse → Preferences → GitHub Copilot → MCP Servers → Add Server:
https://mcp.web3auth.ioIn your Lua config, add via mcphub.nvim:
require("mcphub").setup({
servers = {
web3auth = {
url = "https://mcp.web3auth.io",
transport = "streamable-http",
},
},
})
Or using mcp-remote for compatibility:
require("avante").setup({
mcp = {
servers = {
web3auth = {
command = "npx",
args = { "-y", "mcp-remote", "https://mcp.web3auth.io" },
},
},
},
})
require("codecompanion").setup({
extensions = {
mcp = {
servers = {
web3auth = {
command = "npx",
args = { "-y", "mcp-remote", "https://mcp.web3auth.io" },
},
},
},
},
})
Add to your Amp MCP configuration:
{
"mcpServers": {
"web3auth": {
"url": "https://mcp.web3auth.io"
}
}
}
Add to ~/.config/goose/config.yaml:
extensions:
- name: web3auth
type: http
url: https://mcp.web3auth.io
In 5ire Settings → MCP Servers → Add:
https://mcp.web3auth.ioAider supports MCP via the LiteLLM bridge. Add to your Aider config:
mcp_servers:
web3auth:
command: npx
args: ["-y", "mcp-remote", "https://mcp.web3auth.io"]
For Codex CLI or any stdio-only agent, use mcp-remote to bridge the HTTP endpoint:
npm install -g mcp-remote
Then add to ~/.codex/config.toml:
[mcp_servers.web3auth]
command = "npx"
args = ["-y", "mcp-remote", "https://mcp.web3auth.io"]
Or add to your agent's JSON config:
{
"mcpServers": {
"web3auth": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.web3auth.io"]
}
}
}
If your AI tool doesn't support MCP yet, use the static documentation file instead:
https://docs.metamask.io/llms-full.txt
For tools that support the llms.txt spec and can index docs automatically:
https://docs.metamask.io/llms.txt
Warning: The static file is a snapshot and may not include the latest updates. Use the MCP server when possible for always-current docs.
Once the skill and MCP are set up, ask your AI assistant directly. Good starting prompts:
Tip: Use planning mode (where available) for your initial prompt. Review the plan before generating code — this catches architecture mistakes early and avoids config errors that would change wallet addresses in production.
This repo ships artifacts for every major developer platform:
| Platform | Type | Location |
|---|---|---|
| Cursor Marketplace | Plugin | .cursor-plugin/ + mcp.json |
| VS Code Marketplace | Extension | plugins/vscode/ |
| JetBrains Marketplace | Plugin | plugins/jetbrains/ |
| Zed Extensions | Extension | plugins/zed/ |
| Claude Agent SDK | Plugin | plugins/claude/ |
| Raycast Store | Extension | plugins/raycast/ |
| ChatGPT GPT Store | Custom GPT | openai/ |
| Official MCP Registry | server.json | server.json |
| Glama | glama.json | glama.json |
| Smithery | Server card | app/.well-known/mcp/server-card.json/route.ts |
| Vercel skills.sh | Skill | skills/web3auth/ |
| agentskill.sh | Skill | skills/web3auth/ |
| Variable | Required | Description |
|---|---|---|
GITHUB_TOKEN | No | GitHub personal access token. Optional but recommended to avoid rate limits when fetching SDK source code via get_sdk_reference |
npm install
npm run build
npm start # Run via stdio
npm run dev # Watch mode
When a product update ships, only a few files need changing:
| What changed | File to update |
|---|---|
| SDK architecture / new gotchas | skills/web3auth/SKILL.md |
| New doc pages or URL changes | src/content/registry.ts |
| Platform capabilities changed | src/content/platform-matrix.ts |
| SDK repo structure changed | src/content/sdk-registry.ts |
| New tool category needed | src/tools/register.ts |
| Doc page content changed | Nothing (fetched live) |
MIT
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