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x402node Gas Oracle
x402
x402node Gas Oracle is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-01).
Returns current base fee plus slow, standard, and fast priority fee tiers and the cost of a standard ETH transfer, so agents can choose the right gas price before submitting a transaction.
Price / call$0.006
Success—
StatusUnknown
How this service works
Live gas oracle with slow, standard and fast fee tiers computed from recent block fee history - current base fee plus recommended priority fees and the cost of a standard transfer, so agents can set the right gas price and decide when to submit transactions. gas oracle, gas price, recommended gas, gas fee tiers, optimal gas, priority fee, gas estimate, when to transact Accepts payment on Base or Solana — either network works.
Output
Returns the current base fee per gas, recommended priority fees for slow, standard, and fast confirmation tiers derived from recent block fee history, and the total gas cost of a standard ETH transfer — giving agents everything needed to set an appropriate gas price.
Example use cases
Example prompt
“What are the current slow, standard, and fast gas fee tiers on this chain right now, including the base fee and the cost of a standard transfer, so I can decide which gas price to use before submitting my transaction?”
Technical details
Endpoint
GEThttps://api.x402node.dev/chain/gas-oracle?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to determine optimal gas fees before submitting an EVM transaction — especially when fee sensitivity matters (cost optimization vs. speed). Prefer this over static gas estimates or hardcoded values when network conditions are volatile. It is well-suited for DeFi agents, payment automation, and any workflow that needs to decide between slow/standard/fast confirmation tiers in real time.
Side effects
- Chain not supported or unrecognized chain identifier — returns 4xx error
- Upstream node unavailable or rate-limited — returns 5xx error
- Payment header missing or insufficient — returns 402 Payment Required
- Stale block data if the underlying RPC is lagging — may return outdated fee estimates
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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