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Verified Numbers

Official registry Finance and payments

Current source-cited 2026 US tax constants and calculators for AI agents; every answer cites IRS.

Source code

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http verified-numbers 'https://verified-numbers.mcpize.run'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "verified-numbers": {
            "type": "http",
            "url": "https://verified-numbers.mcpize.run"
        }
    }
}

Frequently asked questions

What is Verified Numbers?

Current source-cited 2026 US tax constants and calculators for AI agents; every answer cites IRS.

How do I install Verified Numbers?

It runs as a remote server. In Claude Code: claude mcp add --transport http verified-numbers 'https://verified-numbers.mcpize.run'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Verified Numbers need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Verified Numbers open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Verified Numbers?

It is published by jfortier93. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.