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Databutler Us Rates MCP Server

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answering

Databutler Us Rates is answering right now. Last checked 10 min ago. It exposes 1 tools.

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

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 8 days of history · worst day 39%
8 days agonow
100.0%
Uptime 24h
92 of 92 checks
1
Tools
read from the server
249 ms
Response time
average over 24h
open, no key
Access
streamable-http

Databutler Us Rates does not always answer

Over the last week it answered 85.7% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add databutler-us-rates --transport http https://databutler.dev/api/mcp/us-rates
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "databutler-us-rates": {
      "url": "https://databutler.dev/api/mcp/us-rates"
    }
  }
}
~/.codex/config.toml
[mcp_servers.databutler-us-rates]
url = "https://databutler.dev/api/mcp/us-rates"
.cursor/mcp.json
{
  "mcpServers": {
    "databutler-us-rates": {
      "url": "https://databutler.dev/api/mcp/us-rates"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "databutler-us-rates": {
      "url": "https://databutler.dev/api/mcp/us-rates"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

rates
us_rates_lookup
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 (rate schedules for Single, Married filing jointly, Head of household and Married filing separately as bracket rows, standard deduction by filing status, additional and dependent standard deduction, top rate), social-security (OASDI wage base, employee and employer rates, COLA, quarter of coverage), medicare (rate, Additional Medicare Tax rate and thresholds by filing status, employer withholding threshold), retirement (401(k)/403(b)/457(b)/TSP deferral limit, age-50 and age-60–63 catch-ups, Roth catch-up wage threshold, § 415(c) and compensation limits, IRA and IRA catch-up, SIMPLE, highly compensated employee), hsa (contribution limits, HDHP minimum deductible and out-of-pocket maximum, excepted-benefit HRA), estate-gift (basic exclusion, GST exemption, annual gift exclusions). Federal only: state income taxes, AMT, EITC and capital-gains brackets are not covered. An unknown category answers covered:false with the nearest keys.

Endpoints

URLTransportStateLatencyChecked
https://databutler.dev/api/mcp/us-rates streamable-http answering 230 ms 10 min ago

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Databutler Us Rates — questions

Answers built from our own checks of this server.

What can Databutler Us Rates do?
It exposes 1 tools, read directly from the server on our last check. Among them: us_rates_lookup. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Databutler Us Rates working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 249 ms. The bar chart above shows every period we have measured.
Is Databutler Us Rates still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect Databutler Us Rates?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Databutler Us Rates need an API key?
No. Databutler Us Rates completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Databutler Us Rates?
It answers our handshake in 249 ms on average, which is faster than 55% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.