Endpoint · onchainGETx402.donnyautomation.com /polygon/price ?symbol=WMATIC
Spot token price in USD on Polygon PoS, read from QuickSwap, SushiSwap and Uniswap v3 pools at call time.
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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.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://x402.donnyautomation.com/polygon/price?symbol=WMATIC
Seen
first 34 days ago · last 9 hr ago
55 free handshakes
Payment
Pays through
x402 · MPP evm
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.200 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.800: 0.126 uncertain ? + 0.674 short ? · 0.250 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.21 | 0.000 | 0.000 | −0.474 | −0.126 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.200 | gap to 1.000 = 0.800 · 0.674 short · 0.126 uncertain | 0.200 | −0.674 | −0.126 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.000 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.200 → UNRATED: 49 of 30 paid calls weights 2026.09.6 · 49 samples · seed cap_01M1A59ND1H0N6SFHQJNY8QRXG|2026-09-03T08:36:32.642Z|2026.09.6
Verify it yourself
npx teppi-check https://x402.donnyautomation.com/polygon/price?symbol=WMATICcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59ND1H0N6SFHQJNY8QRXG