Slack MCP Server vs SparkForge — 20+ Utility APIs with x402 Micropayments

{
  "mcpServers": {
    "korotovsky-slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ],
      "env": {
        "SLACK_MCP_ADD_MESSAGE_TOOL": "YOUR_SLACK_MCP_ADD_MESSAGE_TOOL_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "sparkforge-20-utility-apis-with-x402-micropayments": {
      "command": "npx",
      "args": [
        "-y",
        "sparkforge-20-utility-apis-with-x402-micropayments"
      ]
    }
  }
}