> ## Documentation Index
> Fetch the complete documentation index at: https://docs.0xarchive.io/llms.txt
> Use this file to discover all available pages before exploring further.

# ExchangeCoverageResponse Schema

> Coverage for one supported venue-family key. Includes generated fields, route metadata, response shapes, and implementation-safe 0xArchive contract details.

Source OpenAPI: 0xArchive API 1.5.0; 140 paths; 119 component schemas.

Coverage for one supported venue-family key.

## Required Fields

No required fields are declared on this component schema.

## JSON Schema

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ExchangeCoverageResponse",
  "description": "Coverage for one supported venue-family key.",
  "type": "object",
  "properties": {
    "data_types": {
      "type": "object",
      "additionalProperties": {
        "description": "Coverage for a data type",
        "type": "object",
        "properties": {
          "completeness": {
            "description": "Completeness percentage (0-100)",
            "type": "number"
          },
          "earliest": {
            "description": "Earliest available data timestamp",
            "type": "string",
            "format": "date-time"
          },
          "lag": {
            "description": "Current data lag",
            "type": "string",
            "nullable": true
          },
          "latest": {
            "description": "Latest available data timestamp",
            "type": "string",
            "format": "date-time"
          },
          "resolution": {
            "description": "Data resolution (e.g., '1.2s', '1m')",
            "type": "string",
            "nullable": true
          },
          "symbols": {
            "description": "Number of symbols with data",
            "type": "integer"
          },
          "total_records": {
            "description": "Total number of records",
            "type": "integer",
            "format": "int64"
          }
        }
      }
    },
    "exchange": {
      "description": "Exchange name",
      "type": "string"
    }
  }
}
```

## Referenced By

* [GET /v1/data-quality/coverage/{exchange}](/schemas/operations/get-exchange-coverage)