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NoJunk Chain Gas Fee Estimator
x402
NoJunk Chain Gas Fee Estimator is a paid API for AI agents from nojunk-chain.mick8511.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-28).
Returns current gas price, base fee, and priority-fee percentiles in gwei for up to 7 EVM chains, or sat/vB fee estimates for Bitcoin, using eth_feeHistory over 5 blocks.
Price / call$0.001
Success—
StatusUnknown
How this service works
Blockchain Data gas: Current gas price, base fee and priority-fee percentiles in gwei for one or all 7 EVM chains (eth_feeHistory, 5 blocks), or Bitcoin sat/vB fee estimates.
Output
Returns current gas data including gas price, base fee, and priority-fee percentiles in gwei derived from the last 5 blocks via eth_feeHistory, for one specified EVM chain or all 7 supported EVM chains (Ethereum, Base, BSC, Arbitrum, Polygon, Optimism, Avalanche). For Bitcoin, returns fee estimates in sat/vB.
Example use cases
Pre-transaction gas check on Ethereum
“Before I submit this Ethereum transaction, what's the current base fee and priority fee on Ethereum so I can set a competitive tip?”
Multi-chain gas price comparison
“Pull the current gas prices for all 7 EVM chains — I want to see which one has the cheapest fees right now before I decide where to bridge my funds.”
Bitcoin fee estimate for urgent transfer
“What are the current sat/vB fee estimates for Bitcoin? I need to send a transaction and want to know how much to pay to get it confirmed quickly.”
Technical details
Endpoint
GEThttps://nojunk-chain.mick8511.workers.dev/gas?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time gas fee data across multiple EVM chains or Bitcoin in a single call, especially when you want percentile breakdowns (not just a single estimate) to make informed fee decisions. Ideal for agents that need to compare fees cross-chain or monitor gas conditions before executing transactions.
Side effects
- Invalid chain parameter returns error or falls back to all chains
- Chain RPC node temporarily unavailable causing stale or missing data
- Payment not completed results in 402 response blocking data access
- Network congestion may cause slight delays in fee history retrieval
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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