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DopamineDesk Gas Oracle API
x402
DopamineDesk Gas Oracle API is a paid API for AI agents from ai-data-marketplace-1042299154756.us-central1.run.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns current gas price estimates (safe, proposed, fast, and base fee in Gwei) for a specified blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
Read the current eth_gasPrice value from a supported public Base, Ethereum, or Arbitrum JSON-RPC endpoint.
Output
A JSON object containing the queried chain name, the current base fee in Gwei (as a decimal), and three integer gas price tiers — safe_gwei (economical, slower confirmation), proposed_gwei (standard speed), and fast_gwei (priority, faster confirmation). Example: {chain: 'ethereum', base_fee: 14.5, safe_gwei: 15, proposed_gwei: 18, fast_gwei: 22}.
Example use cases
Pre-transaction gas cost check
“Before I submit this Ethereum transaction, what are the current safe, proposed, and fast gas prices in Gwei so I can pick the right fee tier?”
Arbitrum gas monitoring for DeFi bot
“Fetch the live gas oracle data for Arbitrum so my trading bot knows whether fees are low enough to execute right now.”
Cross-chain gas comparison
“Can you get me the current gas prices for both Ethereum and Polygon so I can decide which chain is cheaper for my transfer right now?”
Technical details
Endpoint
GEThttps://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/gas_oracleWhen to prefer
Choose this endpoint when you need live, tiered gas price estimates (safe/proposed/fast) for EVM-compatible blockchains like Ethereum, Polygon, or Arbitrum, especially in agent workflows that must decide fee levels before submitting transactions. It is priced at $0.01 USDC per call via x402 micropayment, making it suitable for pay-per-use agent automation without a subscription. Prefer alternatives if you need historical gas data or non-EVM chains.
Side effects
- Missing or invalid 'chain' query parameter returns a validation error
- Unsupported chain name (e.g. a non-EVM chain) may return an error or empty result
- Upstream gas oracle data source unavailability may cause stale or failed responses
- Network timeout from the hosted Cloud Run service under high load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"source": "ethereum public JSON-RPC",
"network": "ethereum",
"success": true,
"chain_id": 1,
"fetched_at": "2026-08-07T07:32:31.701Z",
"gas_price_wei": "109052773",
"gas_price_gwei": 0.109052773,
"marketplace_metadata": {
"source": "public EVM JSON-RPC",
"billable": true,
"data_mode": "live_source",
"availability": "operational"
}
}
}Tags
x402
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