Cross-DEX price, liquidity and gross arbitrage spread for ONE BSC pair in a sing
Cross-DEX price, liquidity and gross arbitrage spread for ONE BSC pair in a single call, across PancakeSwap v2/v3, Biswap and ApeSwap. Returns pricesByVenue[], bestBuy, bestSell, midSpreadBps, crossDex (grossSpreadBps, grossUsd, optimalInput) and liquidity at a stated blockNumber. Requires ?pair=SYM/SYM (first symbol is USD-priceable); optional ?fee= pins one v3 tier. Errors: 400 bad_pair|bad_fee, 404 no_pools, 502 upstream_read_failed. Split views: /price, /liquidity, /route.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402.donnyautomation.com/call
| Category | Market data |
|---|---|
| Provider host | x402.donnyautomation.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 902 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"pair": "WBNB/USDC"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"fee": {
"description": "Optional PancakeSwap v3 fee tier to restrict the v3 probe (e.g. 100, 500, 2500, 10000). Omit to probe all v3 tiers + v2.",
"type": "string"
},
"pair": {
"description": "Token pair as SYM/SYM; first symbol is the USD-priceable side (e.g. WBNB/USDC, WBNB/USDT, CAKE/WBNB).",
"type": "string"
}
},
"required": [
"pair"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}