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Beggar Bot EIP-1559 Gas Fee Oracle
x402
Beggar Bot EIP-1559 Gas Fee Oracle is a paid API for AI agents from beggar-bot-demand.beggarbot.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Returns current EIP-1559 gas fee estimates (base fee, slow/standard/fast tiers, priority fees, congestion level) and USD-denominated cost presets for common transaction types across Base, Ethereum, Optimism, Arbitrum, and Polygon.
Price / call$0.02
Success—
StatusUnknown
How this service works
Paid: /v1/verify, /v1/risk, /v1/receipt cost $0.01 USDC per call on Base mainnet via x402 (payTo 0x719227f384b66BFEF00093D6d8d32fA9dC2B40e7); utilities analyze Base mainnet (USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) by default, network=base-sepolia optional; /v1/receipt/verify and discovery files are free. Operator: Beggar Bot.
Output
A JSON object containing the predicted next base fee, slow/standard/fast maxFeePerGas and maxPriorityFeePerGas values derived from feeHistory percentiles, a congestion indicator, an OP-stack L1 data fee upper bound (where applicable), and USD-denominated cost estimates for common transaction presets (ETH transfer, ERC-20 transfer, USDC EIP-3009, swap, Safe exec) or a custom gas_limit.
Example use cases
Pre-flight gas check for DeFi swap
“I'm about to execute a Uniswap swap on Ethereum mainnet — what are the current slow, standard, and fast gas fee options in gwei, and what's the estimated USD cost for the swap?”
OP-stack L1 fee budgeting on Optimism
“I need to estimate the L1 data fee for a transaction on Optimism that's about 200 bytes — can you get me the current gas oracle data including the OP-stack L1 fee upper bound?”
Network congestion check before Safe execution
“Check the current gas fees on Base and tell me whether the network is congested right now — I also want to know the USD cost to execute a Safe multisig transaction at the standard fee tier.”
Technical details
Endpoint
GEThttps://beggar-bot-demand.beggarbot.workers.dev/v1/gasfee?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to determine appropriate EIP-1559 gas parameters before submitting any EVM transaction, especially when USD cost budgeting matters or when targeting OP-stack chains that have an additional L1 data fee component. Prefer this over generic RPC eth_gasPrice calls when you need multi-tier fee recommendations, congestion signals, and pre-computed USD costs for standard transaction types in a single call.
Side effects
- Unsupported chain name returns an error or defaults to Base
- Missing or malformed gas_limit/tx_bytes parameters may omit custom cost estimates
- RPC backend unavailability may return a 5xx error or stale data
- Very high network volatility may cause estimates to lag real mempool conditions
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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