databutler-dev

databutler-dev API

databutler-dev API as documented publicly: 58 operations. Contract generated from the documentation by API Evangelist (2026-10-29); not the provider's own document.

GitHub OpenAPI

Operations 58

GET /.well-known/changes.json Protocol discovery document: areas tracked, cadence, endpoints (json/html/rss/atom/mcp), schema URL, licence, contact. #
GET /.well-known/facts.json Verified Facts discovery document: namespaces, endpoints, key examples, conformance level, keys (JWKS), OpenAPI and MCP. #
GET /api/calendar Calendar facts for 2026–2028, verified 2026-10-04: kind=holidays — public holidays by region for uk, us, de, fr from gov.uk, OPM, the German Länder and calendrier.api.gouv.fr; kind #
GET /api/calendar/next The next public holiday strictly after a date (default today) for uk, us, de, fr, with the three that follow; same snapshot as /api/calendar. #
GET /api/changes What changed in the verified datasets since a date (REST mirror of what_changed_since). format=html|rss|atom serves the /changes page or feeds instead of JSON. #
GET /api/de/rates German tax and social-insurance figures for Veranlagungszeitraum 2026, verified 2026-10-03 against the consolidated statutes, the Bundesgesetzblatt and the BMG/DRV/BMAS pages: Grun #
GET /api/jp/living-costs Japan daily-life official figures, verified 2026-10-24 against the official pages: 地域別最低賃金 FY2026 by prefecture (with each 発効日 and the FY2025 amount), 協会けんぽ health insurance rates #
GET /api/jp/vehicle-costs Japan vehicle statutory costs, verified 2026-10-24 against the official pages: 自動車重量税 at 車検 (2026-05-01 – 2028-04-30 table), エコカー減税 bands, 自賠責保険 for private passenger and kei cars #
POST /api/mcp THE FRONT DOOR — one remote MCP server for the whole estate. Lists uk_rates_lookup, exam_topic_paper, domain_provenance, package_provenance, take_home_pay directly, plus what_chang #
POST /api/mcp/calendar Remote MCP server — tools calendar_facts, next_holiday (public holidays, tax years and daylight saving from the official lists and statutes, monthly snapshot). #
POST /api/mcp/de-rates Remote MCP server — tool de_rates_lookup (German tax and social‑insurance figures, Veranlagungszeitraum 2026; committed data read from the statutes and the Bundesgesetzblatt). #
POST /api/mcp/facts Remote MCP server databutler-facts — three tools: get_fact, resolve_fact, what_changed_since. #
POST /api/mcp/jp-living-costs Remote MCP server — tool jp_living_costs_lookup. #
POST /api/mcp/jp-vehicle-costs Remote MCP server — tool jp_vehicle_costs_lookup. #
POST /api/mcp/policy-rates Remote MCP server — tool policy_rate (Bank of England, Fed, ECB; committed data verified against the banks' own pages). #
POST /api/mcp/provenance Remote MCP server — tools domain_provenance, package_provenance. #
POST /api/mcp/software-eol Remote MCP server — tools support_status, support_timeline (monthly snapshot of endoflife.date open data for 14 runtimes, operating systems, PostgreSQL and React). #
POST /api/mcp/stats Remote MCP server — descriptive_stats, distribution, hypothesis_test, confidence_interval, bayes_update, linear_regression. #
POST /api/mcp/tax Remote MCP server — tool take_home_pay (live via the LifeByNumbers salary calculators). #
POST /api/mcp/uk-exam-dates Remote MCP server — tool uk_exam_dates (results days, summer timetable paper dates, entry deadlines and late‑fee dates, spec changes; JCQ, AQA, Pearson Edexcel, Cambridge OCR, WJEC #
POST /api/mcp/uk-exams Remote MCP server — tools exam_topic_paper, exam_spec_lookup, exam_paper_index. #
POST /api/mcp/uk-gov-process Remote MCP server — tool uk_gov_process {service}: UK government service fees, steps, processing times and dated changes, verified against gov.uk. #
POST /api/mcp/uk-rates Remote MCP server — tool uk_rates_lookup. #
POST /api/mcp/uk-vehicle-rules Remote MCP server — tool uk_vehicle_rules_lookup. #
POST /api/mcp/us-rates Remote MCP server — tool us_rates_lookup (US federal rates and thresholds, tax year 2026; committed data read from the IRS and SSA documents). #
POST /api/mcp/vehicles Remote MCP server — uk_mot_reliability, uk_mot_vehicle_search (live via whatbreaks.uk), uk_recalls_for_model, uk_recalls_search (DVSA), fr_recalls_for_model, fr_recalls_search, jp_ #
GET /api/policy-rates Central-bank policy rates, verified 2026-10-03 against the banks' own pages: Bank of England Bank Rate, US Federal Reserve federal funds target range (lower/upper bound), ECB depos #
GET /api/provenance/domain Who runs this domain? Live RDAP: age, registrar, nameservers, typosquat resemblance. Descriptive signals, not a verdict. #
GET /api/provenance/package Who publishes this package, and is it a typosquat? Live npm/PyPI metadata. #
GET /api/software-eol/status Is this version still supported, and until when? nodejs, python, ubuntu, debian, android, ios, macos, windows, oracle-jdk, go, ruby, php, postgresql, react — a monthly snapshot of #
GET /api/software-eol/timeline Every release cycle of a product, newest first, with release date, supported true|false, eol, LTS, latest release and support-end dates; same snapshot as /status. #
POST /api/stats Exact statistics & probability — for the maths agents get wrong in their head. #
GET /api/tax/take-home Take-home pay after income tax and social contributions for uk, us, ca, au, in, br, pl, fr, de, es: gross, net and total deductions (annual + monthly), typed breakdown, effectiveRa #
GET /api/uk/exam-dates UK exam dates verified 2026-10-04 against JCQ and the boards' own documents: results days, the summer 2027 exam timetable (JCQ window and the dates of GCSE Maths, English Language, #
GET /api/uk/exams/papers Past-paper index: official assessment-resources links per spec (links only — papers are board copyright). #
GET /api/uk/exams/specs Spec metadata: codes, paper structure, durations, tiers, official links. #
GET /api/uk/exams/topic Which paper is a topic on? Built for queries like "is electricity paper 2 AQA". #
GET /api/uk/gov-process UK government service facts verified 2026-10-04 against gov.uk: fees, processing times as stated, eligibility and required documents (each with the quoted sentence and source URL), #
GET /api/uk/rates UK tax-year rates & thresholds (2026-27), verified against gov.uk. #
GET /api/uk/vehicle-rules UK vehicle tax (VED) and MOT rules for 2026-27, verified 2026-10-04 against gov.uk: first-year VED by CO2 band (cars registered on or after 1 April 2017), the standard rate and Dir #
GET /api/us/rates US federal rates and thresholds for tax year 2026, verified 2026-10-03 against the IRS revenue procedures and notices and SSA's Federal Register notice: income-tax rate schedules ( #
GET /api/vehicles/eu/safety-gate STUB — EU Safety Gate vehicle alerts are being added; returns covered:false with the official URL for now. #
GET /api/vehicles/fr/recalls Official French vehicle recalls (RappelConso / DGCCRF open data, 1663 automobile fiches 2018-01-19 → 2026-08-07) for a brand (+ model): fiche number, date, risks, defect text, offi #
GET /api/vehicles/jp/complaints MLIT owner defect reports (39954 across 313 models): total per model + breakdown by defective device. #
GET /api/vehicles/jp/recalls Official Japanese recall filings (国土交通省 MLIT; 3283 filings across 313 models sold in Japan, incl. Lexus and imports): notification number, date, device, affected vehicles, situatio #
GET /api/vehicles/uk/mot Real UK MOT failure data for one model generation: per-category failure rates (overall and at your mileage), riskiest components. #
GET /api/vehicles/uk/recalls Official UK vehicle safety recalls (DVSA open data, OGL v3.0; 4876 recalls launched 2016-01-01 → 2027-02-03) for a make (+ model). #
GET /changes The changelog as a page: every verified change to UK tax/NI thresholds, exam specs, official vehicle datasets, software end-of-life dates, central-bank policy rates, US federal tax #
GET /changes.atom Atom feed of the changelog (?area= optional); same entries as /changes.rss. #
GET /changes.rss RSS 2.0 feed of the changelog (?area= optional). guid = permalink on /changes, link = official source, pubDate = verifiedDate. #
GET /f/{key} Verified Facts (verified-facts/0.2): one official figure by key — value, unit, period, effectiveFrom, official source, quote, verifiedDate, status against ?max_age=, a SHA-256 clai #
GET /openapi.json OpenAPI 3.1 for the facts and changes endpoints (getFact, getFacts, resolveFact, whatChangedSince) — for LangChain / LlamaIndex OpenAPI tool loaders. #
GET /protocol The Verified Changes protocol v0.1 specification — the open convention /api/changes, /changes, the feeds and what_changed_since follow, so any site can publish dated, sourced from/ #
GET /protocol/facts The Verified Facts protocol v0.2 specification (indexable HTML; ?format=md returns the markdown). #
GET /schema/changes.v0.json JSON Schema (draft 2020-12) for a changes document and a single entry; /schema/well-known-changes.v0.json covers the discovery document. #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/databutler-dev/openapi/_ae-authored/databutler-dev-openapi-generated.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/databutler-dev/json-schema/databutler-dev-post-api-stats-request-schema.json

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OpenAPI Specification

databutler-dev-openapi-generated.yml Raw ↑ 
openapi: 3.1.0
info:
  title: databutler-dev API
  version: '2026-10-29'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-10-29: 58 operation(s) read from 1 public documentation page(s) (each operation
    names its page in x-source). This is not the provider''s published contract; databutler-dev has published no machine-readable contract that
    the pipeline could find. Engine: local.'
  x-evidence-tiers:
    code-example: 0
    documentation: 58
    pages-with-code: 0
    pages-read: 1
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-29'
  x-generator: generate-contract-from-docs.py
  x-engine: local
  x-sources:


# --- truncated at 32 KB (37 KB total) ---
# Full source: https://artifacts.apis.io/databutler-dev/openapi/_ae-authored/databutler-dev-openapi-generated.yml