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FiatDock Marketplace: Multi-Chain Gas Tracker
x402
FiatDock Marketplace: Multi-Chain Gas Tracker is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.00099/call, status unknown (last checked 2026-09-15).
Returns real-time gas price data across multiple blockchain networks, billed per call at $0.001 USDC via x402 protocol
Price / call$0.00099
Success—
StatusUnknown
How this service works
Pay-per-call: Multi-Chain Gas Tracker
Output
Returns real-time gas price data for one or more blockchain networks, including current gas prices (e.g. in gwei), estimated transaction costs, and network identifiers — delivered as a JSON-RPC 2.0 response forwarded from the underlying MCP tool.
Example use cases
Cheapest chain for DeFi trade
“Before I execute this swap, check the current gas fees on Ethereum, Arbitrum, and Optimism so I can pick the cheapest network to route through.”
Gas spike alert for NFT mint
“What's the current gas price on Ethereum mainnet? I'm about to mint an NFT and want to know if fees are reasonable or if I should wait.”
Multi-chain cost comparison dashboard
“Pull the latest gas prices across all available chains — I'm building a dashboard and need current gwei estimates for Ethereum, Polygon, Base, and Avalanche.”
Technical details
Endpoint
POSThttps://fiatdock.com/s/svc_c815b4e9-36bd-4cdc-8eee-1be968cde5c2When to prefer
Choose this endpoint when you need live, per-call gas price data across multiple blockchain networks without committing to a subscription. It is ideal for AI agents that need occasional gas checks billed at $0.001 USDC per call via the x402 protocol, and for workflows that span multiple chains and need a single unified interface via MCP JSON-RPC.
Side effects
- Unsupported chain returns an error or empty result
- Malformed JSON-RPC body causes a parse error or 400 response
- Network congestion or upstream provider outage returns a timeout or 503
- Missing or invalid x402 payment header results in a 402 Payment Required response
- Incorrect tool name in params causes a method-not-found error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | e.g. tools/call |
| params | object | the seller's own tool name + arguments |
| jsonrpc | string | "2.0" — the body is forwarded VERBATIM to the seller's MCP endpoint, so send whatever that server expects |
Tags
x402
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