Official rates, thresholds and fees for AI agents: UK, US, Germany and EU. Every figure carries an official
source URL, a verifiedDate and a signature — built for the questions agents
misquote from memory.
Humans: the one page worth reading is /changes — the changelog of verified official facts (UK tax/NI thresholds, exam specs, official vehicle datasets, software end-of-life dates, central-bank policy rates, US federal tax thresholds, German tax and social-insurance thresholds, UK car tax (VED) and MOT rules, UK exam dates, public holidays, tax-year and daylight-saving dates, UK government service steps, fees and processing times) , with the official source and verified date on every entry; also as RSS and Atom. Otherwise this site's front door is /api and llms.txt.
Agents: one remote MCP server for everything —
POST /api/mcp (front door: rates, exams, provenance, take-home pay, plus
what_changed_since for the facts that moved after your training
cutoff, coverage, catalogue, call).
One verified official figure per URL at /f/<country>/<topic>/<fact> — e.g. /f/uk/income-tax/personal-allowance (496 keys at /f, signed; MCP /api/mcp/facts). REST at /api/uk/rates, /api/uk/exams/topic, /api/provenance/domain, /api/stats, /api/vehicles/uk/mot, /api/tax/take-home, /api/software-eol/status, /api/policy-rates, /api/us/rates, /api/de/rates, /api/uk/vehicle-rules, /api/uk/exam-dates, /api/calendar, /api/uk/gov-process, /api/changes; focused MCP servers at
/api/mcp/uk-rates,
/api/mcp/uk-exams,
/api/mcp/provenance,
/api/mcp/stats,
/api/mcp/vehicles (UK MOT failure data, French and Japanese official recalls),
/api/mcp/tax (net salary for ten countries, live from lifebynumbers.net),
/api/mcp/software-eol (is this version still supported, and until when — Node.js, Python, Ubuntu, Windows and ten more, from endoflife.date),
/api/mcp/policy-rates (Bank of England, Fed and ECB policy rates, verified against the banks' own pages),
/api/mcp/us-rates (US federal tax year 2026: IRS brackets and standard deduction, Social Security wage base, Medicare, 401(k)/IRA/HSA limits, estate and gift exclusions, read from the IRS and SSA documents),
/api/mcp/de-rates (German Veranlagungszeitraum 2026: Grundfreibetrag and tariff, Beitragsbemessungsgrenzen and Beitragssätze, Mindestlohn, Minijob, Kindergeld, Pauschbeträge, read from the statutes and the Bundesgesetzblatt),
/api/mcp/uk-vehicle-rules (UK car tax (VED) rates and MOT rules — first-year CO2 bands, standard rate, expensive car supplement, electric cars, historic exemptions, MOT fees and penalties — verified against gov.uk),
/api/mcp/uk-exam-dates (GCSE and A-level results days, the summer exam timetable, entry deadlines and spec changes, quoted from JCQ and the boards),
/api/mcp/calendar (public holidays, tax-year and clock-change dates for 2026–2028 — UK, US, Germany, France and five more, from the official lists) and
/api/mcp/uk-gov-process (passport and ETA fees, driving licence renewal, SORN, voter registration, birth and death registration, Self Assessment deadlines, NI numbers, Universal Credit, EU Settlement Scheme and eVisa — fees, start URLs and dated changes, verified against gov.uk).
Every answer carries a cite.url like
/r/uk/rates?category=income-tax.
Try: is electricity paper 2 AQA? · current minimum wage
Free with attribution. Same operator as whatbreaks.uk (MOT data), lowriskquotes.com (Monte Carlo tools) and lifebynumbers.net (salary calculators).