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x402 Agent Tollbooth Smart Router
x402
x402 Agent Tollbooth Smart Router is a paid API for AI agents from x402-agent-tollbooth.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-21).
Computes optimal gas and slippage routing paths for token swaps on Base, helping AI agents and automated executors execute trades efficiently
Price / call$0.001
Success—
StatusUnknown
How this service works
Optimal Execution Smart Router. Computes optimal gas and slippage routing paths for Base AI agents and automated executors.
Output
Returns the computed optimal routing path for a token swap on Base, including recommended gas parameters and slippage configuration for best execution of the specified trade amount between the input and output tokens.
Example use cases
Automated DeFi swap execution
“I want to swap 1000 USDC for WETH on Base — can you compute the optimal routing path with the best gas and slippage settings before I execute the trade?”
Gas-efficient token trade planning
“What's the cheapest way in terms of gas and slippage to swap 0.5 ETH for USDC on Base? Give me the smart routing recommendation.”
AI agent pre-trade optimization
“Before my agent executes this trade, find the optimal execution path for swapping 250 DAI to cbETH on Base, factoring in gas costs and slippage.”
Technical details
Endpoint
POSThttps://x402-agent-tollbooth.onrender.com/toll/smart_router?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or automated executor needs to pre-compute the optimal gas and slippage route for a token swap on Base before committing to execution. Prefer this over manual DEX interfaces when building automated trading bots, DeFi agents, or any system that needs programmatic routing recommendations at low cost ($0.001 USDC per call).
Side effects
- Invalid or unrecognized token address/symbol returns an error
- Unsupported token pair on Base network
- Amount too small or too large for routing computation
- Service unavailable due to Render.com cold start (free tier latency)
- Payment failure via x402 protocol blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount | string | Trade amount |
| tokenIn | string | Input token address or symbol |
| tokenOut | string | Output token address or symbol |
Tags
x402
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