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, uk/national-insurance/primary-threshold, us/social-security/wage-base, de/income-tax/grundfreibetrag, uk/bank-rate, eu/ecb/deposit-facility, uk/gov/passport-renewal-adult/fee-online-uk. A loose key is resolved when unambiguous; otherwise the answer lists candidate keys. max_age (e.g. 30d) marks the answer stale when the verification is older than that. Several keys separated by commas return a batch. Covers UK, US and German rates and thresholds, UK vehicle tax and MOT rules, UK government service fees, UK exam dates and central-bank policy rates; coverage lists the rest.