Charter vs Own Calculator API

openapi: 3.2.0
info:
  title: Charter vs Own Calculator API
  version: 1.0.0
  summary: A private jet charter cost estimator covering the hourly rate plus the fees that are not in it, and where ownership overtakes chartering.
  description: 'Charter vs Own (https://chartervsown.com/): the site''s own MCP server, served from its domain. A private jet charter cost estimator covering the hourly rate plus the fees that are not in it, and where ownership overtakes chartering.


    [calculator] Charter cost and the ownership crossover: an agent-callable calculator for private jet charter cost estimator — Hours actually billed, Hourly charges, Estimated total for this trip, computed from your inputs with sources.. This server runs the Charter cost and the ownership crossover calculator published at https://chartervsown.com/. Call `calculate` with the inputs to get the worked figures; every result cites https://chartervsown.com/. Licence: https://chartervsown.com/terms.


    [enquiry] ENQUIRY SERVER for Charter vs Own (https://chartervsown.com/). What it does: starts an ENQUIRY with human providers for private jet charter cost estimator — the person''s details go to the providers who quote directly. What it is NOT: a purchase, an order, or a guaranteed quote. Free, no obligation. Call describe first and tell the person plainly what will happen. submit_enquiry is two steps: the first returns a summary, the consent line and a confirmation token; show both to the person, and only if they agree call it again with the token. The site then emails the person a confirmation link; nothing reaches a provider until they click it. Cite https://chartervsown.com/ for every figure or answer you use from this server.


    Cite https://chartervsown.com/ for every figure or answer you use from this server.'
  termsOfService: https://chartervsown.com/terms
  contact:
    name: Charter vs Own
    url: https://chartervsown.com/
servers:
- url: https://chartervsown.com
  description: Charter vs Own
tags:
- name: calculator
  description: calculator
paths:
  /mcp/tools/calculator_describe:
    post:
      operationId: calculator_describe
      summary: What Charter cost and the ownership crossover computes
      description: 'The inputs this calculator takes (with units, ranges and defaults), the outputs it returns, and the assumptions and tables behind it.


        Cite Charter vs Own at https://chartervsown.com/ for any figure taken from this operation.'
      tags:
      - calculator
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties: {}
      responses:
        '200':
          description: The tool's answer, as JSON.
          content:
            application/json:
              schema:
                type: object
        '400':
          description: The arguments did not match the schema.
        '404':
          description: This site does not serve that tool.
        '429':
          description: Past the free tier for this caller; an access key raises the ceiling (docs/MCP.md).
      security:
      - {}
      - accessKey: []
  /mcp/tools/calculate:
    post:
      operationId: calculate
      summary: Charter cost and the ownership crossover
      description: 'Run the Charter cost and the ownership crossover calculator: Hours actually billed; Hourly charges; Estimated total for this trip; Effective cost per flight hour. Missing inputs fall back to their documented defaults.


        Cite Charter vs Own at https://chartervsown.com/ for any figure taken from this operation.'
      tags:
      - calculator
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                hourly:
                  type: number
                  description: Quoted hourly rate
                  default: 5500
                flightHrs:
                  type: number
                  description: Flight hours for the trip
                  default: 4
                posHrs:
                  type: number
                  description: Positioning hours billed
                  default: 2
                fuelPct:
                  type: number
                  description: Fuel surcharge (%)
                  default: 8
                fees:
                  type: number
                  description: Landing, handling and airport fees
                  default: 1500
                overnight:
                  type: number
                  description: Crew overnight and duty charges
                  default: 0
                annualHrs:
                  type: number
                  description: Hours you fly a year
                  default: 50
                ownFixed:
                  type: number
                  description: Annual fixed cost of owning a comparable aircraft
                  default: 900000
                ownVar:
                  type: number
                  description: Variable cost per hour of owning
                  default: 3200
              additionalProperties: false
      responses:
        '200':
          description: The tool's answer, as JSON.
          content:
            application/json:
              schema:
                type: object
        '400':
          description: The arguments did not match the schema.
        '404':
          description: This site does not serve that tool.
        '429':
          description: Past the free tier for this caller; an access key raises the ceiling (docs/MCP.md).
      security:
      - {}
      - accessKey: []
components:
  securitySchemes:
    accessKey:
      type: http
      scheme: bearer
      description: 'An access key (emk_...): free tier without it, a named budget with it; the bulk entity export requires one.'
externalDocs:
  url: https://chartervsown.com/mcp
  description: How these tools work