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Multichain Gas Tracker: 5 EVM Chains + Bitcoin Fees
x402
Multichain Gas Tracker: 5 EVM Chains + Bitcoin Fees is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Returns current gas prices across Base, Ethereum, Arbitrum, Optimism, and Polygon plus Bitcoin fee rates, sorted cheapest first, with USD transfer costs.
Price / call$0.01
Success—
StatusUnknown
How this service works
One call for current gas prices on Base, Ethereum, Arbitrum, Optimism and Polygon: gas price, base fee and priority fee in gwei and what a plain transfer costs in the native coin and, for the ETH chains, in US dollars (Uniswap ETH price), sorted cheapest first, plus Bitcoin fee rates in sat/vB. Cheaper than the tools bought one by one. Use to pick the cheapest chain, time a transaction or show fees in a wallet.
Output
A JSON object with an array of chains sorted cheapest first, each containing chain name, symbol, baseFeeGwei, gasPriceGwei, priorityFeeGwei, transferCost (native), and transferUsd (USD cost of a plain transfer). Also includes top-level ethUsd (ETH price), cheapest (chain name), a bitcoin object with nextBlock and hour fee rates in sat/vB, and a failed object listing any chains that errored.
Example use cases
Pick cheapest chain for a DeFi swap
“I want to do a token swap — which of Base, Arbitrum, Optimism, Polygon, and Ethereum has the lowest gas fees right now, and what would the transfer cost in USD?”
Show live fees in a crypto wallet UI
“Pull the current gas prices across all five EVM chains and Bitcoin fee rates in sat/vB so I can display them to my users in the wallet.”
Time a large Ethereum transaction
“What's the current base fee and priority fee on Ethereum right now? I'm trying to decide if this is a good time to send a large transaction or if I should wait for gas to drop.”
Technical details
Endpoint
GEThttps://agent-data-tools.revmesh2074.workers.dev/pack/gas-tracker?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cross-chain gas comparison in a single call rather than querying each chain separately. It is more cost-efficient than buying individual per-chain gas tools. Ideal for wallets displaying live fee estimates, agents routing transactions to the cheapest chain, or dashboards tracking fee trends across EVM networks and Bitcoin simultaneously.
Side effects
- One or more chains may fail to return data, listed in the 'failed' object while others still succeed
- Bitcoin fee rate fetch may fail independently
- Stale gas data if upstream RPC nodes are lagging
- Unknown keys in 'only' parameter are silently ignored, returning the full response
- ETH/USD price may lag if Uniswap oracle is stale
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| only | string | Optional: comma-separated top-level result keys to keep, for a smaller answer (for example only=price,symbol); unknown keys are ignored and an empty match returns the full result |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| pack | string | |
| chains | array | |
| ethUsd | number | |
| failed | object | |
| bitcoin | object | |
| cheapest | string |
Tags
x402
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