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Delx Commerce EVM Slippage Bounds Check
x402
Delx Commerce EVM Slippage Bounds Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Validates whether the actual slippage on an EVM token swap falls within an acceptable policy threshold before execution
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns the computed slippage in basis points (slippage_bps), a boolean indicating whether the trade is within policy (within_policy), a pass/fail status string, and an evidence object containing a SHA-256 hash of the inputs and confirmation that no data was retained and no external calls were made.
Example use cases
Pre-trade slippage guard for DEX swap
“I'm about to execute a token swap on-chain. My expected output is 5000000000 and minimum output is 4950000000 — can you check if the slippage is within my 50 bps max before I submit?”
Agent DeFi policy enforcement
“My trading agent needs to verify this EVM swap won't exceed 200 bps slippage — expected output is 2000000000, minimum output is 1960000000. Run the slippage bounds check and tell me if it passes policy.”
Arbitrage bot preflight validation
“Before my arbitrage bot fires this transaction, validate the slippage: expected output 800000000, minimum output 792000000, and maximum allowed slippage is 150 bps. Does it pass?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/evm-slippage-bounds-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a lightweight, verifiable, privacy-preserving preflight check on EVM swap slippage before submitting a transaction on-chain. Ideal when you want cryptographic evidence (input hash) that the check was performed without data retention, and when paying per-call without signup overhead via x402/USDC is preferred over integrating a full on-chain oracle or DEX SDK.
Side effects
- Missing required fields (minimum_output_raw, expected_output_raw, or maximum_slippage_bps) cause validation errors
- Non-numeric string values for output amounts may cause parsing failures
- Payment not received or insufficient USDC causes 402 rejection
- Slippage exceeds policy threshold returns within_policy: false but is not itself an error — the agent must handle this as a soft failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| minimum_output_raw | string | Minimum Output Raw supplied to EVM Slippage Bounds Check; used only for this bounded calculation and processed in memory without retention. |
| expected_output_raw | string | Expected Output Raw supplied to EVM Slippage Bounds Check; used only for this bounded calculation and processed in memory without retention. |
| maximum_slippage_bps | integer | Maximum Slippage Bps supplied to EVM Slippage Bounds Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"slippage_bps": 100,
"within_policy": true
},
"schema": "delx/util-evm-slippage-bounds-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "5dc5df2b52d98e3702891cadc557bb1b15650ccede841dc6c0a42606eb549a31",
"external_calls": 0
},
"operation": "evm_preflight:evm_slippage_bounds_check"
}
}Tags
x402
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