Is Relay safe to use?

Relay has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install Relay?

Relay supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

Relay provides 13 tools: web_fetch, file_list, data_json_format, env, Install and 8 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Relay?

Relay is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Relay actively maintained?

Relay is actively maintained — last commit was 3 days ago. It has 12 GitHub stars.

Relay

Name: Relay
Author: valtors

userelay · by valtors

MCP server with 40 tools for AI agents. Memory, web fetch, search, file ops, screenshots, and multi-agent coordination in one Go binary.

12 17/wk 13 tools GitHub npm

No known CVEs

MIT license

Actively maintained

Last commit 3d ago

Works with most clients

Transport: stdio, sse, http

13 tools · ~280 tok

Grade A · 0.1% of 200K ctx

MCPpedia last refreshed this data 2h ago

Edit this pageView history

Relay is an MCP server that MCP server with 40 tools for AI agents. Memory, web fetch, search, file ops, screenshots, and multi-agent coordination in one Go binary. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 88/100 on MCPpedia's security, maintenance and efficiency rubric.

AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "relay": {
      "command": "relay"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/relay)](https://mcppedia.org/s/relay)

Read me

What Relay does

One MCP server for files, images, PDFs, web, and workflows. Your files stay local. No telemetry. No account. No cloud.

Test This Server

This server supports HTTP transport. Be the first to test it — help the community know if it works.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

88/100across 5 weighted dimensions

How we score →

0255075100

−12

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked userelay against OSV.dev.

Inventory

Tools (13)

Click any tool to inspect its schema.

~280 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Relay safe to use?: Relay has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Relay?: Relay supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Relay do?: Relay provides 13 tools: web_fetch, file_list, data_json_format, env, Install and 8 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Relay?: Relay is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Relay actively maintained?: Relay is actively maintained — last commit was 3 days ago. It has 12 GitHub stars.

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Edit this pageView history

AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "relay": {
      "command": "relay"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/relay)](https://mcppedia.org/s/relay)

Read me

What Relay does

One MCP server for files, images, PDFs, web, and workflows. Your files stay local. No telemetry. No account. No cloud.

Test This Server

This server supports HTTP transport. Be the first to test it — help the community know if it works.

README

Relay

One MCP server for files, images, PDFs, web, and workflows. Your files stay local. No telemetry. No account. No cloud.

Run it with npx userelay.

landing - github - npm

Try it

npx userelay

That opens the setup wizard, downloads the right binary, and configures your editor. No install needed.

If you already have it:

npx userelay - launch the TUI menu
npx userelay init - reconfigure your editor
npx userelay status - check version and tools
npx userelay --help - see all commands

How does relay compare?

See the full comparison against standalone MCP servers.

Why Relay?

Every MCP server does one thing. File server. Image server. PDF server. Web fetch server. You stitch 5 of them together and each one has its own install, its own config, its own update cycle, its own way of breaking.

Relay is one binary with 40 tools across 7 categories. One install. One config. One process. When it breaks, you know which thing broke.

	Relay	Multiple servers
Install	`npx userelay`	One per server
Config	One entry	One per server
Updates	One binary	One per server
Memory	One process	N processes
Tools	40 built-in	Whatever you assembled

Install

npx userelay tui

Runs locally. Your files stay on your machine. Type q to exit.

What it does

Runs one MCP server with 40 tools across 7 categories.
Reads and writes local files.
Resizes, crops, converts, rotates, grayscales, and flips images.
Extracts text from PDFs, counts pages, merges files, splits files, and extracts pages.
Fetches web pages and checks status codes.
Converts CSV, JSON, markdown, base64, and regex output.
Works with Claude Desktop, Cursor, VS Code, and other MCP clients.
Supports stdio by default and HTTP with --http.
Enables built-in workflow tools when ANTHROPIC_API_KEY is present.

No pile of single-purpose servers. One binary.

Quickstart

1. Check the binary

Use status first if you want a one-shot command instead of starting the stdio server.

npx userelay status

relay v0.3.0
tools: 40 registered (7 categories)
transport: stdio (default) | http (with --http)

2. Detect supported editors

npx userelay init --list

relay init --list

detected editors:
  1. Cursor
  2. VS Code

If your editor is listed, write the config:

npx userelay init

3. Verify the local binary

If you installed Relay from source or a release, relay status prints the same shape:

relay status

  ╭─────────────────────────────────╮
  │  relay vde

... [View full README on GitHub](https://github.com/valtors/relay#readme)

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

88/100across 5 weighted dimensions

How we score →

0255075100

−12

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked userelay against OSV.dev.

Inventory

Tools (13)

Click any tool to inspect its schema.

~280 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Relay safe to use?: Relay has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Relay?: Relay supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Relay do?: Relay provides 13 tools: web_fetch, file_list, data_json_format, env, Install and 8 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Relay?: Relay is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Relay actively maintained?: Relay is actively maintained — last commit was 3 days ago. It has 12 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for Relay and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?