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BSC/BNB Chain DEX Slippage & Price Impact Simulator
x402
BSC/BNB Chain DEX Slippage & Price Impact Simulator is a paid API for AI agents from x402.donnyautomation.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Simulates a token swap against live BSC/BNB Chain pool reserves to return real execution price, price impact in basis points, pool fee, best venue, and amount out for a given trade size.
Price / call$0.01
Success—
StatusUnknown
How this service works
What a trade size actually executes at on BSC / BNB Chain, simulated against live reserves. Returns best (venue, amountOut, executionPrice, priceImpactBps, feeBps, totalCostBps), routingGain, venues[]. Requires ?pair=SYM/SYM AND ?amountUsd=25000 (or ?amountIn=). pair alone = 400 missing_amount. Errors: 400 bad_pair|missing_amount|bad_amount, 404 no_pools|no_quote|cannot_size_in_usd, 502 upstream_read_failed. Bare = BSC; also /polygon /arbitrum /avalanche /optimism /base.
Output
Returns the best execution venue name, the actual token amount out for the given trade size, price impact in basis points, pool fee as a separate figure, and the routing savings compared to selecting only the best-quoted spot price — all computed against live on-chain pool reserves on BSC/BNB Chain.
Example use cases
Pre-trade slippage check for trading bot
“I'm about to execute a $2000 CAKE/WBNB swap on BNB Chain — can you simulate it first and tell me the real amount out, the price impact in bps, and which DEX venue gives best execution so I know if slippage is acceptable?”
Large order market impact analysis
“I want to buy $10,000 worth of BUSD using WBNB on BSC — simulate the trade and show me how much price impact I'll take, the pool fee separately, and what I'd actually receive versus the spot price.”
DEX routing optimization for DeFi agent
“Compare real execution for a WBNB/USDT trade of 5 WBNB across all venues on BNB Chain and tell me which venue gives the best amount out and how much correct routing saves me versus just picking the best quoted price.”
Technical details
Endpoint
GEThttps://x402.donnyautomation.com/slippageWhen to prefer
Choose this endpoint when you need pre-trade execution simulation specifically on BSC/BNB Chain — especially when you need price impact in basis points, pool fee broken out separately, and a cross-venue best-execution comparison before submitting an on-chain transaction. Prefer this over spot-price endpoints when trade size matters and slippage is a concern, or when building trading bots and DEX aggregators that need to validate execution quality before committing.
Side effects
- Invalid or unrecognized token pair symbol returns an error
- Pair with no liquidity on BSC returns no venues or empty result
- Missing required 'pair' query parameter returns 400-level error
- Extremely large trade size relative to pool depth may return max-impact or error
- Network or RPC issues fetching live pool reserves may cause timeout or stale data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ts": "2026-07-31T00:00:00.000Z",
"chainId": 56,
"network": "bsc"
}
}Tags
x402
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