What is the key difference between Agent Skills Search Server and SendLetter?

Agent Skills Search Server belongs to the Developer Tools category with cloud HTTP/SSE execution, while SendLetter belongs to the Developer Tools category with local stdio execution.

How do I install Agent Skills Search Server or SendLetter in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Agent Skills Search Server and SendLetter free or paid?

Agent Skills Search Server operates under a Free / Open Source model (No auth required). SendLetter operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Agent Skills Search Server lists 0 tools with 0 views and 24,095 GitHub stars. SendLetter lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Agent Skills Search Server and SendLetter together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Agent Skills Search Server or SendLetter in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Agent Skills Search Server and SendLetter free to use, or do they require API keys?

Agent Skills Search Server is listed under a Free / Open Source model with No auth required . SendLetter operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Agent Skills Search Server and SendLetter at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both agent-skills-search-server and sendletter as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Agent Skills Search Server has a Quality Score of 48 /100 ( Fair ) with 0 views, 0 installs, and 24,095 GitHub stars. SendLetter holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Agent Skills Search Server vs SendLetter

In-depth architectural comparison of the Agent Skills Search Server and SendLetter MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Agent Skills Search Server

Developer Tools · Remote HTTP/SSE

Quality: 48/100 (Fair) | Auth: No auth required

SendLetter

Developer Tools · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Agent Skills Search Server if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose SendLetter if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Agent Skills Search Server when:

You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Agent Skills Search Server Details

Choose SendLetter when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore SendLetter Details

Feature & Specification Comparison

Specification	A Agent Skills Search Server Developer Tools	S SendLetter Developer Tools
Summary	Search and discover Agent Skills from the skills.sh registry. Powered by HAPI MCP server.	Send real, printed letters by post across Europe. Requires a free account; quote before sending.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Agent Skills Search Server Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

SendLetter Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Agent Skills Search Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "agent-skills-search-server": {
      "url": "https://img.shields.io/badge/Discord-Join-5865F2?logo=discord&logoColor=white)](https://discord.gg/MKPE9g8aUy"
    }
  }
}

SendLetter Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sendletter": {
      "command": "npx",
      "args": [
        "-y",
        "sendletter"
      ]
    }
  }
}

Frequently Asked Questions

Agent Skills Search Server is categorized under Developer Tools and uses a remote streaming HTTP/SSE transport. In contrast, SendLetter belongs to Developer Tools using local stdio subprocess. Select Agent Skills Search Server when you need capabilities focused on developer tools and SendLetter when you require tools for developer tools.

More alternatives to Agent Skills Search Server More alternatives to SendLetter Developer Tools category hub