AI Plugin Index
Webmcp Local Relay
Verified · npm:@mcp-bMCP server by WebMCP-org · updated · ★ 104 · 2.5k downloads a week
Local MCP relay for browser WebMCP tools via embed iframe and localhost WebSocket Webmcp Local Relay is published by npm:@mcp-b from its verified domain in the official MCP Registry.
Last commit 2 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 104 stars, original repository
Not checked yet. What we check
Install Webmcp Local Relay
Built from the published package, never by AIclaude mcp add webmcp-local-relay -- npx -y @mcp-b/webmcp-local-relayRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"webmcp-local-relay": {
"command": "npx",
"args": [
"-y",
"@mcp-b/webmcp-local-relay"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"webmcp-local-relay": {
"command": "npx",
"args": [
"-y",
"@mcp-b/webmcp-local-relay"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"webmcp-local-relay": {
"command": "npx",
"args": [
"-y",
"@mcp-b/webmcp-local-relay"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add webmcp-local-relay -- npx -y @mcp-b/webmcp-local-relay{
"mcpServers": {
"webmcp-local-relay": {
"command": "npx",
"args": [
"-y",
"@mcp-b/webmcp-local-relay"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add webmcp-local-relay npx -y @mcp-b/webmcp-local-relayGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the webmcp-local-relay block.
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Webmcp Local Relay: common questions
How do I install Webmcp Local Relay?
In Claude Code run claude mcp add webmcp-local-relay -- npx -y @mcp-b/webmcp-local-relay. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Webmcp Local Relay the official server?
Webmcp Local Relay is published by npm:@mcp-b from its verified domain in the official MCP Registry.
Is Webmcp Local Relay free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Webmcp Local Relay safe to use?
It scores 84 of 100. Grades: maintenance A, licence A, quality B. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Webmcp Local Relay?
Similar MCP servers: browser-use, Actionbook, Robin: AI-Powered Dark Web OSINT, Scrapling MCP Server.
Does Webmcp Local Relay work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.