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​
Parameters

​
chainId
string
default:"bitcoin-testnet"
required
Unique identifier for a blockchain network.
​
id
number
default:1
required
Request identifier used to match responses.
​
jsonrpc
string
default:"2.0"
required
JSON-RPC version.
​
method
string
default:"estimatesmartfee"
required
JSON-RPC method name.
​
params
object
required
Parameters: [confTarget, estimateMode?].Positional parameters for estimatesmartfee:
  • params[0]: Target confirmation window in blocks.
  • params[1]: Optional estimate mode (UNSET, ECONOMICAL, CONSERVATIVE).

​
Returns

​
result
object
Fee rate estimates in BTC/kvB along with error details.
curl --request POST \
  --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=bitcoin-testnet \
  --header 'content-type: application/json' \
  --data '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "estimatesmartfee",
    "params": [
      0,
      ""
    ]
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {}
}