Estimate Fees

Gets real-time fee details for a given network, allowing users to make decisions based on their preferences for transaction speed/priority. Three levels of priority will be displayed: slow, standard, fast.

GET /networks/fees

Estimate Fees

cURL

curl --request GET \
  --url https://api.dfns.io/networks/fees \
  --header 'Authorization: Bearer <token>'

200

{
  "kind": "Bitcoin",
  "blockNumber": 123,
  "slow": {
    "feeRate": "12",
    "blockHorizon": 2
  },
  "standard": {
    "feeRate": "12",
    "blockHorizon": 2
  },
  "fast": {
    "feeRate": "12",
    "blockHorizon": 2
  }
}

Authentication

✅ Organization User (CustomerEmployee)
✅ Delegated User (EndUser)
✅ Service Account

Required Permissions

No permission required.

Authorizations

Authorization · string · header · required

Bearer Token: Used to authenticate API requests. More details how to generate the token: Authentication flows

Query Parameters

network · enum<string> · required

Available options: Bitcoin, BitcoinSignet, BitcoinTestnet3, BitcoinTestnet4, ArbitrumOne, ArbitrumSepolia, ArcTestnet, AvalancheC, AvalancheCFuji, Base, BaseSepolia, Bob, BobSepolia, Bsc, BscTestnet, Berachain, BerachainBepolia, Celo, CeloAlfajores, Codex, CodexSepolia, Ethereum, EthereumClassic, EthereumClassicMordor, EthereumSepolia, EthereumHolesky, EthereumHoodi, FantomOpera, FantomTestnet, FlareC, FlareCCoston2, FlowEvm, FlowEvmTestnet, Ink, InkSepolia, Optimism, OptimismSepolia, Plasma, PlasmaTestnet, Plume, PlumeSepolia, Polygon, PolygonAmoy, Race, RaceSepolia, Tempo, TempoModerato, Tsc, TscTestnet1, Xdc, XdcApothem, XLayer, XLayerSepolia, Solana, SolanaDevnet

Response

200 - application/json

Success

Bitcoin

EVM EIP-1559

Solana

kind · enum<string> · required

Available options: Bitcoin

network · enum<string> · required

Available options: Bitcoin, BitcoinSignet, BitcoinTestnet3, BitcoinTestnet4, Litecoin, LitecoinTestnet, Dogecoin, DogecoinTestnet

blockNumber · number · required

slow · object · required

Show child attributes

standard · object · required

Show child attributes

fast · object · required

Show child attributes