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Polygon PoS Live Token Price (QuickSwap/SushiSwap/Uniswap v3)
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Polygon PoS Live Token Price (QuickSwap/SushiSwap/Uniswap v3) is a paid API for AI agents from x402.donnyautomation.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns the real-time USD spot price of any ERC-20 token on Polygon PoS, sourced from QuickSwap, SushiSwap, and Uniswap v3 pools, with liquidity depth and confidence rating.
Price / call$0.01
Success—
StatusUnknown
How this service works
Spot token price in USD on Polygon PoS, read from QuickSwap, SushiSwap and Uniswap v3 pools at call time. Returns priceUsd, the routed pair, backing liquidityUsd, confidence and blockNumber. Requires ?symbol=TICKER (e.g. WMATIC) or ?token=0xADDRESS. Errors: 400 missing_symbol|unknown_token, 404 no_reliable_price when pools are too thin, 502 upstream_read_failed. Depth is /liquidity; a size-aware quote is /slippage. Chain-pinned; bare /price = BSC.
Output
Returns a JSON object containing priceUsd (the token's current USD spot price), the specific DEX trading pair used to derive the price, the USD liquidity depth backing the quote, and a confidence rating indicating how reliable the price is given pool depth — flagging thin-pool quotes so they are not mistaken for deep-market prices.
Example use cases
Trading bot pre-trade price check
“Before my bot places a buy order, check the live USD price of WBTC on Polygon PoS and tell me the liquidity backing the quote so I know if the price is reliable.”
DeFi portfolio valuation
“What is the current USD price of LINK on Polygon? I need the spot price from the DEX pools along with a confidence rating to value my holdings.”
Price oracle sanity check
“Can you fetch the real-time USD price of DAI on Polygon PoS from the DEX pools and tell me which pair was used and how much USD liquidity is backing it?”
Technical details
Endpoint
GEThttps://x402.donnyautomation.com/polygon/priceWhen to prefer
Choose this endpoint when you need a real-time, DEX-sourced USD price for any ERC-20 token on Polygon PoS — especially when liquidity confidence matters (e.g., trading bots, price oracles, portfolio valuation). It is superior to fixed-list price APIs because it covers any ERC-20, not just major tokens, and it explicitly surfaces pool depth and confidence so thin-market prices are never silently passed off as reliable quotes. Prefer it over Ethereum mainnet or Base/Arbitrum equivalents when your token or trading activity is specifically on the Polygon / MATIC / POL network.
Side effects
- Token symbol not found on Polygon PoS — returns error if ticker is unrecognized or has no active pool
- Insufficient liquidity — price returned with low confidence rating indicating thin pool
- No pool exists for the token — endpoint may return error or null price
- Network congestion on Polygon causing delayed pool state reads
- Invalid or malformed symbol parameter causes 400-class error
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": 137,
"network": "polygon"
}
}Tags
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