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The inputs this calculator takes (with units, ranges and defaults), the outputs it returns, and the assumptions and tables behind it.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Run the Pub mortgage calculator calculator: All-in interest rate; Monthly payment, capital and interest; Monthly payment, interest only; Arrangement fee. Missing inputs fall back to their documented defaults.

{
  "type": "object",
  "properties": {
    "loan": {
      "type": "number",
      "description": "Loan amount",
      "default": 500000
    },
    "margin": {
      "type": "number",
      "description": "Margin over Bank Rate (%)",
      "default": 3
    },
    "term": {
      "type": "number",
      "description": "Term in years",
      "default": 20
    },
    "arrFeePct": {
      "type": "number",
      "description": "Arrangement fee (% of loan)",
      "default": 1.5
    },
    "otherFees": {
      "type": "number",
      "description": "Valuation, legal and broker fees",
      "default": 0
    },
    "fmt": {
      "type": "number",
      "description": "Annual net profit before rent and finance (FMT)",
      "default": 90000
    },
    "multiple": {
      "type": "number",
      "description": "Going concern multiple applied to FMT",
      "default": 5
    },
    "bricks": {
      "type": "number",
      "description": "Bricks and mortar value if it stopped trading",
      "default": 300000
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Read first. States plainly what submit_enquiry does on Pub Mortgage Calculator: it starts an enquiry with human providers who quote directly. Nothing is bought, ordered or paid; no quote is guaranteed; it is free. Also returns who receives the details, the consent wording, and how the person confirms.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Every field of the Pub Mortgage Calculator enquiry: key, label, type, whether required, help text and the allowed options where there are any. Pass answers to submit_enquiry keyed by field key.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Submits an enquiry to Pub Mortgage Calculator — NOT a purchase, NOT a guaranteed quote. Step 1: call with the answers (keyed by field key from enquiry_fields) and consent=true; it validates and returns a summary, the consent line and a confirmation token — show the person the summary and the consent line. Step 2: only if the person agrees, call again with the same answers, consent=true and the confirmation token; the enquiry is then submitted, and the person receives an email with a link they must click before any provider sees it. Consent means the person has read and agreed to: "Happy for my details to go to a broker who places pub and leisure finance, who'll contact me directly."

{
  "type": "object",
  "properties": {
    "answers": {
      "type": "object",
      "additionalProperties": {
        "type": [
          "string",
          "number",
          "boolean"
        ]
      },
      "description": "the person's answers, keyed by field key"
    },
    "consent": {
      "type": "boolean",
      "description": "true only when the person has agreed to: Happy for my details to go to a broker who places pub and leisure finance, who'll contact me directly."
    },
    "confirmation": {
      "type": "string",
      "description": "the confirmation token from step 1, after the person has approved the summary"
    }
  },
  "required": [
    "answers",
    "consent"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}