# Estimate fee nblocks

Estimates the approximate fee per kilobyte needed for a transaction to begin confirmation within nblocks blocks. 

Endpoint: GET /daemon/estimatefee
Version: 6.6.1

## Query parameters:

  - `nblocks` (integer, required)
    Number of nblocks
    Example: 5

## Response 200 fields (application/json):

  - `status` (string)
    Explanation of status
    Enum: "success", "error"

  - `data` (integer)
    Estimated fee-per-kilobyte -1.0 is returned if not enough transactions and blocks have been observed to make an estimate.