{"openapi":"3.1.0","info":{"title":"Own vs Charter API","version":"1.0.0","summary":"Private jet ownership vs charter, with fractional and jet card: five questions on hours, mission length, passengers, notice and charter revenue decide the model.","description":"Own vs Charter (https://ownvscharter.com/): the site's own MCP server, served from its domain. Private jet ownership vs charter, with fractional and jet card: five questions on hours, mission length, passengers, notice and charter revenue decide the model.\n\n[checker] Own, fractional, jet card or charter. This server serves the checker published at https://ownvscharter.com/; every answer cites it. Licence: https://ownvscharter.com/terms.\n\n[enquiry] ENQUIRY SERVER for Own vs Charter (https://ownvscharter.com/). What it does: starts an ENQUIRY with human providers for private jet ownership vs charter — 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://ownvscharter.com/.\n\nCite https://ownvscharter.com/ for every figure or answer you use from this server.","termsOfService":"https://ownvscharter.com/terms","contact":{"name":"Own vs Charter","url":"https://ownvscharter.com/"}},"servers":[{"url":"https://ownvscharter.com","description":"Own vs Charter"}],"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://ownvscharter.com/mcp","description":"How these tools work"},"tags":[{"name":"guide","description":"checker"},{"name":"enquiry","description":"enquiry"}],"paths":{"/mcp/tools/checker_start":{"post":{"operationId":"checker_start","summary":"Start: Own, fractional, jet card or charter","description":"The first question of the Own, fractional, jet card or charter decision guide.\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["guide"],"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/checker_answer":{"post":{"operationId":"checker_answer","summary":"Answer a question, get the next step","description":"Given a question id and the chosen option (its `choice` index), return the next question or the final verdict.\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["guide"],"requestBody":{"required":false,"content":{"application/json":{"schema":{"type":"object","properties":{"question":{"type":"string","minLength":1},"choice":{"type":"integer","minimum":0}},"required":["question","choice"],"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":[]}]}},"/mcp/tools/checker_tree":{"post":{"operationId":"checker_tree","summary":"The whole decision tree","description":"Every question, option and verdict of the Own, fractional, jet card or charter guide, for reasoning end to end.\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["guide"],"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/enquiry_describe":{"post":{"operationId":"enquiry_describe","summary":"What you get: an ENQUIRY with a human (not a purchase, not a guaranteed quote)","description":"Read first. States plainly what submit_enquiry does on Own vs Charter: 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.\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["enquiry"],"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/enquiry_fields":{"post":{"operationId":"enquiry_fields","summary":"The questions the enquiry asks","description":"Every field of the Own vs Charter 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.\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["enquiry"],"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/submit_enquiry":{"post":{"operationId":"submit_enquiry","summary":"Submit an ENQUIRY to human providers (two steps; not a purchase)","description":"Submits an enquiry to Own vs Charter — 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: \"Send my contact details to up to three relevant aviation advisers or brokers, chosen by Own vs Charter, who'll contact me directly. I'll be emailed each firm's name as my details go to it, and can stop any more firms getting them.\"\n\nCite Own vs Charter at https://ownvscharter.com/ for any figure taken from this operation.","tags":["enquiry"],"requestBody":{"required":false,"content":{"application/json":{"schema":{"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: Send my contact details to up to three relevant aviation advisers or brokers, chosen by Own vs Charter, who'll contact me directly. I'll be emailed each firm's name as my details go to it, and can stop any more firms getting them."},"confirmation":{"type":"string","description":"the confirmation token from step 1, after the person has approved the summary"}},"required":["answers","consent"],"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":[]}]}},"/mcp":{"post":{"operationId":"mcp","summary":"Model Context Protocol endpoint (JSON-RPC 2.0 over Streamable HTTP)","description":"The same tools over MCP, stateless. Send initialize, tools/list or tools/call.","tags":["mcp"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","required":["jsonrpc","method"],"properties":{"jsonrpc":{"const":"2.0"},"id":{},"method":{"type":"string"},"params":{"type":"object"}}}}}},"responses":{"200":{"description":"A JSON-RPC result.","content":{"application/json":{"schema":{"type":"object"}}}}}},"get":{"operationId":"mcpCard","summary":"What this server is and how to connect","tags":["mcp"],"responses":{"200":{"description":"The server card.","content":{"application/json":{"schema":{"type":"object"}}}}}}}}}