Parameters2
| Parameter | Type | Default | Example |
|---|---|---|---|
blocks | number | null | 20 |
chain | string | null | ethereum |
Service overview
Multi-chain EVM gas snapshot via direct RPC eth_feeHistory across 17 chains (Ethereum, Base, Optimism, Arbitrum, Polygon, Avalanche, BSC, Gnosis, Fantom, Linea, Scroll, Blast, Mode, opBNB, Celo, zkSync, Mantle) — slow/standard/fast EIP-1559 tiers, current base fee, latest block, median fullness. For agent fee estimation and cross-chain tx scheduling.
Level up your agent by giving it access to thousands of services. All payable per-request via x402. No API keys, no accounts.
Paste into your agentic chat and let your agent guide you.
npx awal x402 pay "https://evm-gas.apitoll.cloud/v1/evm/gas" \
--query '{
"blocks": "{blocks}",
"chain": "{chain}"
}'{
"endpoint": "GET /v1/evm/gas",
"paid": true,
"query": "example input",
"result": {
"value": "Structured response from the service."
}
}API surface
1 crawlable route
| Parameter | Type | Default | Example |
|---|---|---|---|
blocks | number | null | 20 |
chain | string | null | ethereum |
FAQ
Service
OATP · tx_explainer — Fetch a Solana transaction by signature and return a human-readable explanation: programs invoked, token balance changes, fee (SOL + USD), and a one-line summary.
Service
Decode and explain any EVM blockchain transaction across 11 chains (Base, Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Mantle, Monad, Plasma, BSC, Hyperliquid). Get a human-readable summary of swaps, transfers, approvals, DeFi interactions, and more.
Service
NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)