Skip to main content

Gas and Fees

Gas pricing​

Specter uses GHOST as the gas token. The chain enforces a minimum gas price of 1 gwei (1,000,000,000 aghost).

warning

eth_gasPrice may return 0 on Specter. This is a known Cosmos EVM behavior. Always set gas price explicitly to avoid transaction failures.

Setting gas price​

// viem
const hash = await walletClient.sendTransaction({
  to: recipient,
  value: parseEther('1'),
  gasPrice: 1_000_000_000n,
});

// ethers.js v6
const tx = await contract.myFunction({
  gasPrice: 1_000_000_000n,
});
# Foundry
cast send $CONTRACT "myFunction()" \
  --gas-price 1000000000 \
  --rpc-url https://testnet.specterchain.com

Typical gas costs​

OperationApproximate Gas
Simple transfer~21,000
ERC20 transfer~65,000
Contract deployment (small)~200,000
Ghost Protocol commit~150,000
Ghost Protocol reveal~350,000
Groth16 proof verification~200,000
GhostERC20 deployment~2,000,000

Cost calculation​

Cost (in GHOST) = gasUsed × gasPrice / 10^18

Example: Reveal operation
= 350,000 × 1,000,000,000 / 10^18
= 0.00035 GHOST

At 1 gwei gas price, most operations cost fractions of a cent worth of GHOST.