MCP Server

pound.one

one.pound/pound-one
Data & Analytics Finance & Investing Public & reachable MCP 2025-11-25

What this MCP does

Calculates UK inflation adjustments, take-home pay, taxpayer income rank, and public-spending comparisons using stored data.

adjust_for_inflation
Adjust pounds for UK inflation
Compare GBP purchasing power between years, with prices, wages and housing context. RPI covers 1948 onwards; CPI covers 1988 onwards. "now" means the latest stored observation, not a live price.
Read only Idempotent
Input schema
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['amount', 'from'], 'properties': {'to': {'anyOf': [{'type': 'integer', 'maximum': 2026, 'minimum': 1948}, {'type': 'string', 'const': 'now'}], 'default': 'now', 'description': 'Ending calendar year, or latest available data.'}, 'from': {'type': 'integer', 'maximum': 2026, 'minimum': 1948, 'description': 'Starting calendar year.'}, 'amount': {'type': 'number', 'maximum': 1000000000000, 'minimum': 0.01, 'description': 'Amount in GBP; rounded to the nearest penny.'}, 'series': {'enum': ['rpi', 'cpi'], 'type': 'string', 'default': 'rpi', 'description': 'Inflation measure; RPI has the longer history.'}}, 'additionalProperties': False}
calculate_take_home
Calculate annual take-home pay
Employee income tax and National Insurance for 2026/27, or the gross salary needed for a target net income. England, Wales and Northern Ireland only; Scotland is unsupported. Excludes pensions, student loans, benefits and other income. Includes a historical UK taxpayer income rank.
Read only Idempotent
Input schema
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['amount', 'region'], 'properties': {'mode': {'enum': ['gross', 'net'], 'type': 'string', 'default': 'gross'}, 'amount': {'type': 'integer', 'maximum': 1000000000, 'minimum': 1, 'description': 'Annual gross salary (gross mode), or annual target take-home pay (net mode), in whole GBP. Multiply monthly figures by 12 first.'}, 'region': {'enum': ['england', 'wales', 'northern_ireland'], 'type': 'string', 'description': 'Confirm the tax jurisdiction; Scottish income tax is not supported.'}}, 'additionalProperties': False}
compare_public_spending
Put a sum beside public spending
Express a GBP amount as a share and duration of a stored 2025-26 public budget, with comparisons against other budgets. The NHS comparison uses England's DHSC day-to-day budget as a proxy. These are illustrative averages, not live spending rates.
Read only Idempotent
Input schema
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['amount'], 'properties': {'amount': {'type': 'number', 'maximum': 1000000000000000, 'minimum': 0.01, 'description': 'Amount in GBP.'}, 'budget': {'enum': ['everything', 'nhs', 'pensions', 'welfare', 'interest', 'education', 'defence', 'borrowing', 'taxes', 'monarchy'], 'type': 'string', 'default': 'nhs', 'description': 'Budget to compare against; response also includes other budgets.'}}, 'additionalProperties': False}
Added
compare_public_spending
Oct. 3, 2026, 2:40 a.m.
Added
calculate_take_home
Oct. 3, 2026, 2:40 a.m.
Added
adjust_for_inflation
Oct. 3, 2026, 2:40 a.m.