Name: gas-price-api
Price: 0.02 USDC
Availability: InStock

$ man gas-price-api

agentutility / edge-market / gas-price-api

PRICE / CALL

$0.02

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

edgemarket

CATEGORY

uncategorized

STATUS

● live

NAME

gas-price-api — gas price api / eip-1559 gas fee endpoint / blockchain transaction fee estimator

synonym alias of gas-now-base — reuses the canonical handler.

SYNOPSIS

POST https://x402.agentutility.ai/gas-price-api
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Gas price API / EIP-1559 gas fee endpoint / blockchain transaction fee estimator. Same gas-price handler, discoverable for agents estimating base fee, priority fee tiers, maxFeePerGas, and USD transaction costs for Base, Ethereum, Optimism, and Arbitrum.

INPUT — request schema

property	type	description	req?
chain	string	EVM L1/L2 to read gas from. Default 'base'. enum: base · ethereum · optimism · arbitrum · polygon	optional

OUTPUT — response shape

field	type	description
chain	string	—
standard	string	—
source	string	—

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/gas-price-api \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the gas-price-api tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: gaspriceapigas-price-api
methods: POST
cluster: edgemarket
price: $0.02 USDC per call

ADJACENT — other endpoints in edgemarket

endpoint	description	price
coin-price	Coin price API / crypto spot price / BTC ETH SOL quote lookup.	$0.02
crypto-price	Crypto price lookup / coin price API / BTC ETH SOL price / on-chain token spot price / contract-address quote API.	$0.02
crypto-token-price	Crypto token price API / token quote lookup / ERC-20 SPL token market data.	$0.02
defi-llama	DefiLlama API / DeFi TVL protocol lookup.	$0.02
defi-llama-api	DeFiLlama API / DeFi protocol TVL lookup / protocol fundamentals.	$0.02
defi-llama-protocol	DefiLlama protocol lookup / DeFi TVL fetcher / total value locked / chain-breakdown of TVL / Aave + Lido + Uniswap + MakerDAO TVL / proto…	$0.02
defi-tvl	DeFi TVL API / total value locked by protocol.	$0.02
defillama	DefiLlama protocol TVL lookup / DeFi protocol metadata.	$0.02