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Saylor Innovations EVM Gas Price
x402
Saylor Innovations EVM Gas Price is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Returns current gas prices (gwei, base fee, next base fee, slow/standard/fast priority tips) and plain-transfer cost for any of 16 supported EVM chains.
Price / call$0.01
Success—
StatusUnknown
How this service works
Current gas price on 16 EVM chains: gwei, base fee, next base fee, slow, standard and fast priority tips from recent blocks, and the cost of a transfer.
Output
A JSON object containing the queried chain name and chain ID, current gas price in both gwei and wei, EIP-1559 base fee and projected next base fee in gwei, slow/standard/fast priority fee tips derived from recent blocks, cost of a plain 21,000-gas ETH transfer in the native currency, average block fullness percentage over the last 20 blocks, latest block number, native currency symbol, data source, and a plain-language note summarising the result.
Example use cases
Pre-transaction gas check on Ethereum
“Before I send this ETH transfer, what's the current gas situation on Ethereum — base fee, next base fee, and fast priority tip in gwei?”
Cheapest chain selection for DeFi action
“I need to do a quick transfer and want to keep fees low — what does a plain transfer cost on Base right now in native currency?”
Gas monitoring for automated agent workflow
“Check the current gas price on Polygon and tell me whether the average block fullness is high — I want to know if it's a good time to submit a transaction.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chain/gas-price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time, per-block gas price intelligence for any of 16 popular EVM chains, including EIP-1559 base fee projections and priority tip tiers. It is especially useful for pre-transaction cost estimation, DeFi workflow automation, or gas-sensitive agent decisions. Prefer it over generic blockchain explorers when you need structured JSON with slow/standard/fast priority breakdowns and native-currency transfer cost in one call.
Side effects
- Unsupported chain name or ID returns an error — only the 16 named chains are valid
- Chain RPC temporarily unavailable may return null for some fields like base_fee_gwei or block_number
- Stale data if the underlying RPC node lags behind the latest block
- Network-level errors (timeouts, 402 payment required if USDC payment not attached)
- Malformed chain query string returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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