io.github.physics-star-cat/databutler

up checked 2026-11-11T00:37:38.466Z

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Publisher-provided description

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

Summary by lookupd

Provides verified UK rates, exam specs, recalls, holidays, stats and domain or package provenance checks via lookup and calculation tools.

Install

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

codex mcp add databutler --url https://databutler.dev/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (11 tools)

Publisher-provided text

• uk_rates_lookup Current UK (2026-27) rates and thresholds, verified against gov.uk with source URLs and verification dates. Categories: income-tax, national-insurance, minimum-
• exam_topic_paper 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
• domain_provenance Who runs this domain? Live RDAP lookup: registration date and age, registrar, nameservers, status, whether the registrant is redacted, plus a typosquat check (e
• package_provenance 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, linke
• take_home_pay 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 Life
• what_changed_since 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,
• get_fact 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 off
• resolve_fact 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
• coverage 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, so
• catalogue 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 fo
• call Run any Data Butler tool by name — the long tail not listed here: exam_spec_lookup, exam_paper_index; exact statistics (distribution, hypothesis_test, confidenc

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 322 ms
• First indexed: 2026-11-01T09:44:45.957Z
• Last seen in registry: 2026-11-01T09:44:45.957Z
• Repository: https://github.com/physics-star-cat/databutler
• Website: https://databutler.dev/api

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• Last crawl: 2026-11-11T16:39:06.253Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp