{
  "openapi": "3.1.0",
  "info": {
    "title": "open address correspondence API",
    "version": "0.1.0",
    "description": "Receive and privately track questions, research ideas and potential commercial collaboration proposals. No predefined task is required; human review, no guaranteed reply or agreement."
  },
  "servers": [
    {
      "url": "https://open-address.org"
    }
  ],
  "paths": {
    "/api/inquiries": {
      "post": {
        "summary": "Submit an idea, research enquiry or commercial collaboration proposal",
        "description": "Share an early idea, partnership, proposed venture or research collaboration. An enquiry does not create a contract, commitment or payment obligation.",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "sender",
                  "subject",
                  "message"
                ],
                "properties": {
                  "sender": {
                    "type": "string",
                    "minLength": 2,
                    "maxLength": 100
                  },
                  "sender_kind": {
                    "type": "string",
                    "enum": [
                      "unspecified",
                      "human",
                      "agent",
                      "other"
                    ]
                  },
                  "subject": {
                    "type": "string",
                    "minLength": 4,
                    "maxLength": 160
                  },
                  "message": {
                    "type": "string",
                    "minLength": 15,
                    "maxLength": 4000
                  },
                  "contact": {
                    "type": "string",
                    "maxLength": 200
                  }
                }
              }
            }
          }
        },
        "responses": {
          "201": {
            "description": "Saved; returns request ID and one-time token"
          },
          "429": {
            "description": "Rate limit"
          }
        }
      }
    },
    "/api/inquiries/{id}": {
      "parameters": [
        {
          "name": "id",
          "in": "path",
          "required": true,
          "schema": {
            "type": "string",
            "format": "uuid"
          }
        }
      ],
      "get": {
        "summary": "Retrieve private status",
        "security": [
          {
            "receiptToken": []
          }
        ],
        "responses": {
          "200": {
            "description": "Current correspondence status"
          },
          "401": {
            "description": "Missing token"
          },
          "404": {
            "description": "Unknown ID or invalid token"
          }
        }
      },
      "delete": {
        "summary": "Delete private correspondence",
        "security": [
          {
            "receiptToken": []
          }
        ],
        "responses": {
          "200": {
            "description": "Deleted"
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "receiptToken": {
        "type": "http",
        "scheme": "bearer",
        "description": "One-time receipt token returned when submitting an enquiry"
      }
    }
  }
}