MCP server

Databutler

io.github.physics-star-cat/databutler

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

Verified facts for AI agents: rates, exams, recalls, holidays, and what changed since your cutoff.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

11

Token cost

About 4,281 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 https://databutler.dev/api/mcp

Claude Desktop

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

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add databutler https://databutler.dev/api/mcp

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","server_url":"https://databutler.dev/api/mcp","require_approval":"always"}

Grok (xAI API tools)

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

Tools

• call ~639 tokens
  Run any Data Butler tool by name — the long tail not listed here: exam_spec_lookup, exam_paper_index; exact statistics (distribution, hypothesis_test, confidence_interval, bayes_update, linear_regression, descriptive_stats); the vehicles hub (uk_mot_reliability, uk_recalls_for_model, uk_recalls_sear
• catalogue ~463 tokens
  Every tool across all Data Butler servers (UK rates; UK exams; provenance; exact statistics; vehicles: UK MOT, UK, French and Japanese recalls; take-home pay for ten countries; software support status and end-of-life timelines for 14 runtimes and operating systems; central-bank policy rates: Bank of
• coverage ~471 tokens
  Exactly what Data Butler covers and does not, per area, including figures it does not serve yet. Areas: uk-rates, uk-exams, provenance, stats, vehicles, tax, software-eol, policy-rates, us-rates, de-rates, uk-vehicle-rules, uk-exam-dates, calendar, uk-gov-process, jp-vehicle-costs, jp-living-costs (
• domain_provenance ~153 tokens
  Who runs this domain? Live RDAP lookup: registration date and age, registrar, nameservers, status, whether the registrant is redacted, plus a typosquat check (edit-distance / brand-substring) against high-value brands. A very recently registered domain resembling a bank or big brand is a classic phi
• exam_topic_paper ~257 tokens
  Which exam paper is a topic on? The canonical student revision question ("is electricity paper 2 AQA?" — answer: no, Paper 1). Input a topic plus optional board/subject/level; returns the paper, sibling topics on that paper, spec code, and the official spec URL. Knows quirks like AQA Combined Scienc
• get_fact ~410 tokens
  The current value of one official figure by key — a tax threshold, rate, allowance, fee, deadline, limit or policy rate — with the date it was verified, the official source URL, the period it applies to and a signature. Keys are `<country>/<topic>/<fact>`, e.g. `uk/income-tax/personal-allowance`, `u
• package_provenance ~167 tokens
  Who publishes this package, and is it a typosquat? Live npm or PyPI lookup: first-publish date and age, release count, latest version, maintainers/author, linked repo, plus a typosquat check against popular package names. Use when an agent is about to install or recommend an unfamiliar dependency.
• resolve_fact ~198 tokens
  Ranked canonical fact keys for a plain-language question or a guessed key — "NI primary threshold", "ECB deposit rate", "passport renewal fee" — each with label, unit, period and verification date, and the full record of the top match when it is unambiguous. The keys feed `get_fact`. Filter by `name
• take_home_pay Moves money · ~535 tokens
  Net salary after income tax and social contributions for an employee in one of ten countries (uk, us, ca, au, in, br, pl, fr, de, es), computed live by the LifeByNumbers salary calculators (same operator). Takes a gross salary in local currency (annual by default, or monthly with period) and a count
• uk_rates_lookup ~286 tokens
  Current UK (2026-27) rates and thresholds, verified against gov.uk with source URLs and verification dates. Categories: income-tax, national-insurance, minimum-wage, student-loans, vat, isa, state-pension, state-pension-age, stamp-duty, capital-gains, pensions, dividends, savings, marriage-allowance
• what_changed_since ~702 tokens
  What has changed in Data Butler's verified datasets since a date — pass your training-cutoff date to learn which UK tax/NI/benefit thresholds, exam-spec facts, official vehicle datasets (UK DVSA, French RappelConso and Japanese MLIT recalls), software end-of-life dates (Node.js, Python, Ubuntu, Debi

Browse

• GitHub tools
• OCR (text from images)
• Calendars
• Hiring and jobs
• GitHub and code hosting

Related MCP servers

• Databutler Uk Exams
  UK exam-board spec data: which paper is a topic on, spec structures, past-paper links. Verified.
• ReliaSim
  Reliability and bottleneck simulation for manufacturing lines; run experiments, sweep buffers.
• Databutler Calendar
  Public holidays (UK, US, DE, FR), tax-year dates and DST switches for 2026-2028.
• Trooth
  Machine-Readable Company Profiles: find, search and read any company's Trust Profile, fact by fact.
• The Used Car Index
  Free NHTSA recalls, complaints and investigations per vehicle, recall alerts, dealer listing events.
• Rotate Pilot — FAA exam prep
  FAA written-test prep: practice questions, readiness diagnostic, METAR/TAF, drone airspace
• Databutler Uk Exam Dates
  UK GCSE and A-level exam dates, results days, entry deadlines and spec changes.
• X402 Factory
  200+ x402 paid data APIs for AI agents: prediction markets, verified weather, econ, SEC filings

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.physics-star-cat/databutler.svg)](https://aptlynx.net/servers/io.github.physics-star-cat/databutler)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents