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GET
/
networks
/
fees
Estimate Fees
curl --request GET \
  --url https://api.dfns.io/networks/fees \
  --header 'Authorization: Bearer <token>'
{
  "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,
BitcoinTestnet4,
Litecoin,
LitecoinTestnet,
Dogecoin,
DogecoinTestnet,
ArbitrumOne,
ArbitrumSepolia,
ArcTestnet,
AvalancheC,
AvalancheCFuji,
Base,
BaseSepolia,
Bob,
BobSepolia,
Bsc,
BscTestnet,
Berachain,
BerachainBepolia,
Celo,
CeloAlfajores,
Codex,
CodexSepolia,
Ethereum,
EthereumClassic,
EthereumClassicMordor,
EthereumSepolia,
EthereumHoodi,
FlareC,
FlareCCoston2,
FlowEvm,
FlowEvmTestnet,
Ink,
InkSepolia,
Optimism,
OptimismSepolia,
Plasma,
PlasmaTestnet,
Plume,
PlumeSepolia,
Polygon,
PolygonAmoy,
Race,
RaceSepolia,
Rayls,
RaylsTestnet,
Robinhood,
RobinhoodSepolia,
Sonic,
SonicTestnet,
Tempo,
TempoModerato,
Tsc,
TscTestnet1,
Xdc,
XdcApothem,
XLayer,
XLayerSepolia,
Solana,
SolanaDevnet

Response

200 - application/json

Success

​
kind
enum<string>
required
Available options:
Bitcoin
​
network
enum<string>
required
Available options:
Bitcoin,
BitcoinSignet,
BitcoinTestnet4,
Litecoin,
LitecoinTestnet,
Dogecoin,
DogecoinTestnet
​
blockNumber
number
required
​
slow
object
required
​
standard
object
required
​
fast
object
required
Last modified on July 2, 2026