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Omnichain Pre-Trade Contract & Token Verifier
x402
Omnichain Pre-Trade Contract & Token Verifier is a paid API for AI agents from piggybank.loth2023ys.workers.dev, paid per call via x402, $0.09/call, status unknown (last checked 2026-10-23).
Returns best DEX pool, total reserve liquidity in USD, and expected trade slippage across 7 blockchains before executing a trade
Price / call$0.09
Success—
StatusUnknown
How this service works
7-chain pre-trade smart contract bytecode, SPL/Token-2022 authority & multi-DEX liquidity risk oracle across Base (8453), Solana, Ethereum (1), Arbitrum (42161), Optimism (10), Polygon (137), and BNB Smart Chain (56). Instant x402 v2 settlement in Base USDC or BSC USDC.
Output
Returns a JSON object with the best pool contract address (bestPool), total liquidity reserves in USD (totalReserveUsd), and expected trade slippage percentage (customTradeSlippagePct) for the queried token/chain combination.
Example use cases
Pre-trade slippage check on Ethereum
“I'm about to swap a large amount into this Ethereum token — can you check the best available pool and what slippage I should expect before I commit?”
Solana SPL token authority verification
“Before I buy this SPL token on Solana, verify the token authority and check how deep the liquidity is on the main DEXes so I'm not walking into a rug.”
Multi-chain liquidity comparison before arbitrage
“I want to arb this token across Arbitrum and Polygon — pull the best pool addresses, total reserve USD, and slippage percentages on both chains so I can decide where to trade.”
Technical details
Endpoint
GEThttps://piggybank.loth2023ys.workers.dev/v1/liquidity?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pre-trade risk assessment across multiple blockchains simultaneously before executing a swap or liquidity provision. It is most useful when trading on unfamiliar tokens, verifying smart contract safety, or comparing DEX pool quality across chains like Base, Solana, Ethereum, Arbitrum, Optimism, Polygon, and BSC — all in a single call at $0.008 per query.
Side effects
- Token or contract address not found on specified chain — returns empty or null pool data
- Chain ID not supported — request fails with invalid parameter error
- Low liquidity pool returns very high slippage percentage warning
- Smart contract bytecode unverifiable — returns inconclusive verification status
- Network timeout or RPC node unavailability for a given chain causes partial response
- Invalid or malformed contract address returns 400-level error
Input
Schema · Request body
{
"input": {
"type": "object",
"required": [
"address"
],
"properties": {
"ref": {
"type": "string",
"description": "Optional 0x partner wallet for 20% CREATE2 revenue share."
},
"chain": {
"type": "string",
"default": "auto",
"description": "Target chain slug or numeric chainId (default: auto)."
},
"address": {
"type": "string",
"description": "Target 0x EVM token address or Base58 Solana mint address."
},
"tradeUsd": {
"type": "string",
"default": "500",
"description": "Simulated USD trade size for slippage impact."
}
}
},
"output": {
"type": "object"
}
}Output
Schema · Response
{
"type": "json",
"example": {
"bestPool": "0xE31c372a7AF875b3B5E0F3713B17ef51556da667",
"totalReserveUsd": 1842500.5,
"customTradeSlippagePct": 0.05
}
}Tags
x402
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