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MCP Registry/solmail
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solmail

Send physical mail with Solana cryptocurrency - AI agents can send real letters worldwide

Use with clientMarkdown

Install and compare this MCP server

Use this profile to copy client config, check auth requirements, review tools and resources, and compare related MCP servers before adding it to an AI client.

Install
npx -y solmail-mcp
Clients
Claude, Cursor, VS Code, Codex
Transport
STDIO
Auth
Auth required by registry metadata
Capabilities
0 tools, 0 resources, 0 prompts
Related
hedera-mcp, sui-mcp-server, watsonx

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InstallAuthTools & ResourcesOverview

Install

Connection

Transport
STDIO
Command
npx -y solmail-mcp
Environment
{ "SOLANA_PRIVATE_KEY": "YOUR_SECRET_VALUE", "SOLANA_NETWORK": "YOUR_VALUE_HERE", "SOLMAIL_API_URL": "YOUR_VALUE_HERE", "MERCHANT_WALLET": "YOUR_VALUE_HERE" }

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

{
  "mcpServers": {
    "io-github-expertvagabond-solmail": {
      "command": "npx",
      "args": [
        "-y",
        "solmail-mcp"
      ],
      "env": {
        "SOLANA_PRIVATE_KEY": "YOUR_SECRET_VALUE",
        "SOLANA_NETWORK": "YOUR_VALUE_HERE",
        "SOLMAIL_API_URL": "YOUR_VALUE_HERE",
        "MERCHANT_WALLET": "YOUR_VALUE_HERE"
      }
    }
  }
}

Config location

macOS
~/Library/Application Support/Claude/claude_desktop_config.json
Windows
%APPDATA%\Claude\claude_desktop_config.json

Auth

Package transport

No remote HTTP endpoint is advertised. Use the package or stdio setup shown in Install.

Tools & Resources

Tools
0
Resources
0
Prompts
0
No public tools, resources, or prompts captured yet. Use Auth when this server requires credentials.

Tools

No tools captured yet.

Resources

No resources captured yet.

Prompts

No prompts captured yet.

Questions

What is solmail?+

solmail is an MCP server for Send physical mail with Solana cryptocurrency - AI agents can send real letters worldwide. It supports STDIO transport.

How do I install solmail?+

Use the generated config in Install. This server runs with npx -y solmail-mcp; add any required environment variables before starting your client.

How do I add solmail to Claude Desktop?+

Choose the Claude Desktop tab in Install and copy the config for npx -y solmail-mcp. Add required environment variables before starting Claude Desktop.

How do I add solmail to Claude Code?+

Choose the Claude Code tab in Install and copy the config for npx -y solmail-mcp. Add required environment variables before starting Claude Code.

How do I use solmail with Codex?+

Choose the Codex tab in Install and copy the config for npx -y solmail-mcp. Add required environment variables before starting Codex.

How do I add solmail to Cursor or VS Code?+

Choose the Cursor or VS Code tab in Install and copy the config for npx -y solmail-mcp. Add required environment variables before starting Cursor or VS Code.

What endpoint and transport does solmail use?+

solmail uses STDIO transport. Use the package or command config in Install.

What tools and resources does solmail expose?+

solmail inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.

Does solmail require authentication?+

solmail is marked with Auth required by registry metadata auth. You may need provider login, an API key, a bearer token, or a session header.

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Profile notes

  • Package: Npm solmail-mcp v1.0.2
  • Environment variable: SOLANA_PRIVATE_KEY (required; secret)
  • Environment variable: SOLANA_NETWORK
  • Environment variable: SOLMAIL_API_URL
  • Environment variable: MERCHANT_WALLET
  • The upstream registry signals required auth or secrets.

Packages

PackageRegistryVersionInputs
solmail-mcp

stdio

npm1.0.2

Env: SOLANA_PRIVATE_KEY required secret

Env: SOLANA_NETWORK

Env: SOLMAIL_API_URL

Env: MERCHANT_WALLET

Details

Version
1.0.2
Auth
Auth required by registry metadata
Repository
https://github.com/ExpertVagabond/solmail-mcp
Updated
Feb 3, 2026