MCP server

Databutler Us Rates

io.github.physics-star-cat/databutler-us-rates

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

US federal 2026 tax brackets, standard deductions, payroll and retirement limits, sourced.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

1

Token cost

About 422 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http databutler-us-rates https://databutler.dev/api/mcp/us-rates

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.databutler-us-rates]
url = "https://databutler.dev/api/mcp/us-rates"

Gemini CLI

{"mcpServers":{"databutler-us-rates":{"httpUrl":"https://databutler.dev/api/mcp/us-rates"}}}

Cursor

{"mcpServers":{"databutler-us-rates":{"url":"https://databutler.dev/api/mcp/us-rates"}}}

VS Code

{"servers":{"databutler-us-rates":{"type":"http","url":"https://databutler.dev/api/mcp/us-rates"}}}

Antigravity

agy mcp add databutler-us-rates https://databutler.dev/api/mcp/us-rates

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"databutler-us-rates","server_url":"https://databutler.dev/api/mcp/us-rates","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"databutler-us-rates","server_url":"https://databutler.dev/api/mcp/us-rates"}

Tools

• us_rates_lookup ~422 tokens
  Current US federal (tax year 2026) rates and thresholds read from the IRS revenue procedures and notices, SSA's Federal Register notice and irs.gov pages, each figure with its source URL, the quoted sentence or table row, verifiedDate and the prior-year value where one exists. Categories: income-tax

Browse

• GitHub tools
• GitHub and code hosting

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