{
  "components": {
    "parameters": {},
    "schemas": {
      "ErrorResponse": {
        "properties": {
          "error": {
            "type": "string"
          }
        },
        "required": ["error"],
        "type": "object"
      }
    },
    "securitySchemes": {
      "ApiKeyAuth": {
        "in": "header",
        "name": "x-api-key",
        "type": "apiKey"
      }
    }
  },
  "info": {
    "description": "Runtime API for workflow/chat/deployment/session execution.",
    "title": "ABL Runtime API - public/sessions",
    "version": "1.0.0",
    "x-generated": "do not edit; source: route contracts"
  },
  "jsonSchemaDialect": "https://spec.openapis.org/oas/3.1/dialect/base",
  "openapi": "3.1.0",
  "paths": {
    "/api/v1/chat/usage": {
      "get": {
        "description": "Usage metrics for a project with optional date range and grouping.",
        "operationId": "runtime.legacyChat.getUsage",
        "parameters": [
          {
            "description": "Project id",
            "in": "query",
            "name": "projectId",
            "required": true,
            "schema": {
              "description": "Project id",
              "type": "string"
            }
          },
          {
            "description": "ISO 8601 start date",
            "in": "query",
            "name": "startDate",
            "required": false,
            "schema": {
              "description": "ISO 8601 start date",
              "type": "string"
            }
          },
          {
            "description": "ISO 8601 end date",
            "in": "query",
            "name": "endDate",
            "required": false,
            "schema": {
              "description": "ISO 8601 end date",
              "type": "string"
            }
          },
          {
            "description": "Group usage by model",
            "in": "query",
            "name": "groupBy",
            "required": false,
            "schema": {
              "description": "Group usage by model",
              "enum": ["model"],
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "content": {
              "application/json": {
                "schema": {
                  "properties": {
                    "byModel": {
                      "items": {
                        "properties": {
                          "modelId": {
                            "type": "string"
                          },
                          "provider": {
                            "type": "string"
                          },
                          "requestCount": {
                            "type": "number"
                          },
                          "totalCost": {
                            "type": "number"
                          },
                          "totalTokens": {
                            "type": "number"
                          }
                        },
                        "required": [
                          "modelId",
                          "provider",
                          "totalTokens",
                          "totalCost",
                          "requestCount"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "summary": {
                      "properties": {
                        "avgLatency": {
                          "type": "number"
                        },
                        "requestCount": {
                          "type": "number"
                        },
                        "totalCost": {
                          "type": "number"
                        },
                        "totalTokens": {
                          "type": "number"
                        }
                      },
                      "required": ["totalTokens", "totalCost", "requestCount", "avgLatency"],
                      "type": "object"
                    }
                  },
                  "required": ["byModel"],
                  "type": "object"
                }
              }
            },
            "description": "Success"
          },
          "401": {
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            },
            "description": "Unauthorized"
          },
          "500": {
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            },
            "description": "Internal server error"
          }
        },
        "security": [
          {
            "ApiKeyAuth": []
          }
        ],
        "summary": "Get usage metrics (legacy)",
        "tags": ["Chat"]
      }
    }
  }
}