Estimate Transaction Fee

Estimate the approximate fee per kilobyte required for a transaction to confirm in the next blocks, based on the current state of the mempool.

get

Retrieve estimated fee rates to use for transactions to be confirmed within a specific range of blocks.

Authorizations

Responses

200

Default Response

application/json

400

Invalid input

application/json

401

Unauthorized

application/json

404

Not found

application/json

429

Rate limit exceeded

application/json

500

Internal server error

application/json

get

HTTPcURLJavaScriptPython

GET /v1/bitcoin/mempool/fee-estimates HTTP/1.1
Host: api.secretkeylabs.io
x-api-key: YOUR_API_KEY
Accept: */*

{
  "currentBlockHeight": 1,
  "estimates": {
    "nextBlock": 1,
    "in2Blocks": 1,
    "in3Blocks": 1
  }
}