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x402 MCP Storefront – Base Transaction Decision
x402
x402 MCP Storefront – Base Transaction Decision is a paid API for AI agents from x402-mcp.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns a submit-or-wait recommendation plus EIP-1559 fee parameters (max fee per gas, priority fee in gwei) and estimated USD cost for ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet.
Price / call$0.01
Success—
StatusUnknown
How this service works
Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559), and the estimated cost in USD for an ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet. Live gas price and congestion from Base RPC blocks, no API key. For bots that queue transactions: call before every send.
Output
Returns a JSON object containing: a submit-or-wait recommendation, the recommended max fee per gas in gwei, the priority fee (tip) in gwei per EIP-1559, the estimated USD cost for an ETH transfer, USDC ERC-20 transfer, or x402 settlement, and current network congestion/utilization data derived from live Base RPC block data.
Example use cases
Optimize bot transaction queue timing
“My bot has a batch of x402 settlements queued up for Base mainnet — should I send them now or hold off, and what EIP-1559 fees and USD cost per settlement should I expect?”
Check ETH transfer cost on Base
“I'm about to send some ETH on Base — is now a good time to submit, and what will the max fee, priority fee, and total USD cost look like?”
Real-time Base congestion check
“Before my agent triggers any transactions, is Base mainnet congested right now, and what are the current recommended gas parameters so I can decide whether to proceed or wait?”
Technical details
Endpoint
GEThttps://x402-mcp.onrender.com/base/tx-decisionWhen to prefer
Use this endpoint when an agent or bot is about to submit a transaction on Base mainnet and needs a real-time go/no-go decision plus accurate EIP-1559 fee parameters, especially for cost-sensitive operations like x402 micropayments, USDC transfers, or ETH sends. Prefer this over generic gas trackers when you need a bundled decision with USD cost estimates specific to Base L2, with no API key required.
Side effects
- Base RPC node unavailable — returns error or stale data
- Network congestion spikes between call and transaction submission making advice stale
- Rate limiting or timeout from the render.com hosted service
- Estimated USD cost may drift if ETH price moves rapidly between call and execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"fee": {
"max_fee_per_gas_gwei": 0.012,
"current_base_fee_gwei": 0.0055,
"max_priority_fee_per_gas_gwei": 0.001
},
"submit": true,
"verdict": "SETTLE_NOW",
"as_of_block": 48941850,
"recheck_in_s": null,
"estimated_cost": {
"gas": 55000,
"usd": 0.0011
}
}
}Tags
x402
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