---
updatedAt: 2026-07-29T09:32:58.000Z
---

# Get round details by number

Returns details for a round: open and target-close times, amulet price, tick duration, and aggregate
    activity totals (marker weight, coupon sum, participating parties).

# OpenAPI definition

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "CantonView Public API",
    "description": "Public API for accessing Canton Network explorer data through CCView",
    "contact": {
      "name": "API Maintainer",
      "email": "cantonview@pixelplex.io"
    },
    "license": {
      "name": ""
    },
    "version": "1.0.0"
  },
  "servers": [
    {
      "url": "https://ccview.io",
      "description": "Production HTTPS server"
    }
  ],
  "paths": {
    "/api/rounds/{number}": {
      "get": {
        "tags": [
          "Rounds"
        ],
        "summary": "Get round details by number",
        "description": "Returns details for a round: open and target-close times, amulet price, tick duration, and aggregate\n    activity totals (marker weight, coupon sum, participating parties).",
        "operationId": "rounds_by_number_v1",
        "parameters": [
          {
            "name": "number",
            "in": "path",
            "required": true,
            "schema": {
              "type": "integer",
              "format": "int64",
              "default": 0
            },
            "example": 104457
          }
        ],
        "responses": {
          "200": {
            "description": "Round details.",
            "content": {
              "application/json": {
                "schema": {
                  "oneOf": [
                    {
                      "type": "null"
                    },
                    {
                      "$ref": "#/components/schemas/RoundDetails"
                    }
                  ]
                }
              }
            }
          },
          "400": {
            "description": "Bad Request",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "message",
                    "timestamp"
                  ],
                  "properties": {
                    "message": {
                      "type": "string",
                      "description": "Detailed message description.",
                      "example": "message error"
                    },
                    "status": {
                      "type": "integer",
                      "format": "int32",
                      "description": "HTTP status code.",
                      "maximum": 599,
                      "minimum": 400
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "description": "Timestamp of error occurrence."
                    }
                  }
                }
              }
            }
          },
          "401": {
            "description": "Unauthorized",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "message",
                    "timestamp"
                  ],
                  "properties": {
                    "message": {
                      "type": "string",
                      "description": "Detailed message description.",
                      "example": "message error"
                    },
                    "status": {
                      "type": "integer",
                      "format": "int32",
                      "description": "HTTP status code.",
                      "maximum": 599,
                      "minimum": 400
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "description": "Timestamp of error occurrence."
                    }
                  }
                }
              }
            }
          },
          "404": {
            "description": "Not Found",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "message",
                    "timestamp"
                  ],
                  "properties": {
                    "message": {
                      "type": "string",
                      "description": "Detailed message description.",
                      "example": "message error"
                    },
                    "status": {
                      "type": "integer",
                      "format": "int32",
                      "description": "HTTP status code.",
                      "maximum": 599,
                      "minimum": 400
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "description": "Timestamp of error occurrence."
                    }
                  }
                }
              }
            }
          },
          "500": {
            "description": "Internal Server Error",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "message",
                    "timestamp"
                  ],
                  "properties": {
                    "message": {
                      "type": "string",
                      "description": "Detailed message description.",
                      "example": "message error"
                    },
                    "status": {
                      "type": "integer",
                      "format": "int32",
                      "description": "HTTP status code.",
                      "maximum": 599,
                      "minimum": 400
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "description": "Timestamp of error occurrence."
                    }
                  }
                }
              }
            }
          },
          "501": {
            "description": "Not Implemented",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "message",
                    "timestamp"
                  ],
                  "properties": {
                    "message": {
                      "type": "string",
                      "description": "Detailed message description.",
                      "example": "message error"
                    },
                    "status": {
                      "type": "integer",
                      "format": "int32",
                      "description": "HTTP status code.",
                      "maximum": 599,
                      "minimum": 400
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "description": "Timestamp of error occurrence."
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "RoundDetails": {
        "type": "object",
        "required": [
          "round_number",
          "event_id",
          "contract_id",
          "current_phase",
          "record_time",
          "open_time",
          "target_close_time",
          "amulet_price",
          "total_coupons",
          "total_coupons_value"
        ],
        "properties": {
          "amulet_price": {
            "type": "string"
          },
          "cc_pool_max": {
            "type": [
              "string",
              "null"
            ]
          },
          "contract_id": {
            "type": "string"
          },
          "current_phase": {
            "$ref": "#/components/schemas/RoundPhase"
          },
          "event_id": {
            "type": "string"
          },
          "marker_value": {
            "type": [
              "string",
              "null"
            ]
          },
          "open_time": {
            "type": "string",
            "format": "date-time"
          },
          "record_time": {
            "type": "string",
            "format": "date-time"
          },
          "round_number": {
            "type": "integer",
            "format": "int64"
          },
          "target_close_time": {
            "type": "string",
            "format": "date-time"
          },
          "tick_duration": {
            "type": [
              "integer",
              "null"
            ],
            "format": "int64"
          },
          "total_coupons": {
            "type": "integer",
            "format": "int64"
          },
          "total_coupons_value": {
            "type": "string"
          }
        }
      },
      "RoundPhase": {
        "type": "string",
        "enum": [
          "Open",
          "Issuing",
          "Summarizing",
          "Closed"
        ]
      }
    },
    "securitySchemes": {
      "ApiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "X-API-Key"
      }
    }
  },
  "security": [
    {
      "ApiKeyAuth": []
    }
  ],
  "tags": [
    {
      "name": "Rounds",
      "description": "Information about mining rounds"
    }
  ],
  "externalDocs": {
    "url": "https://swagger.io/resources/open-api/",
    "description": "OpenAPI Documentation Reference"
  }
}
```