990tax-mcp

990.tax MCP servers: free IRS nonprofit lookup and Form 990-N filing for Claude, ChatGPT, Gemini and any MCP client

Installation

MCP client config (paste into mcp.json)

{
  "mcpServers": {
    "digital-tax-llc-990tax-mcp": {
      "url": "https://990.tax/mcp"
    }
  }
}

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://github.com/Digital-Tax-LLC/990tax-mcp

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "digital-tax-llc-990tax-mcp": {
      "url": "https://990.tax/mcp"
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

GitHub

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