Endpoint · lookupGETx402-seller.onrender.com /ocean/tides ?lat=37.7749&lng=-122.4194&product=predictions
U.S.
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U.S. coastal tide data from NOAA — when's the next high or low tide, or what's the water level right now: high/low tide predictions for the next 48 hours (product=predictions, default), or the latest observed water level (product=water_level). Identify the location by NOAA CO-OPS station ID, or just pass lat+lng and the nearest station is used automatically (distanceKm in the response says how far it is). Heights in feet above MLLW datum, times in GMT.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://x402-seller.onrender.com/ocean/tides?lat=37.7749&lng=-122.4194&product=predictions
Seen
first 34 days ago · last 14 hr ago
60 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.729 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.271: 0.156 uncertain ? + 0.115 short ? · 0.071 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.42 | 0.000 | 0.000 | −0.115 | −0.085 | |
| liveness it answered at all |
0.60 | 1.00 | 0.882 | 0.529 | 0 | −0.071 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.729 | gap to 1.000 = 0.271 · 0.115 short · 0.156 uncertain | 0.729 | −0.115 | −0.156 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.882 liveness
+ 0.200 × 1.000 price stability
= 0.729 → UNRATED: 52 of 30 paid calls weights 2026.09.6 · 52 samples · seed cap_01M1A51P0PYR5N3BYBZ2H4GJ4G|2026-09-03T23:18:17.622Z|2026.09.6
Verify it yourself
npx teppi-check https://x402-seller.onrender.com/ocean/tides?lat=37.7749&lng=-122.4194&product=predictionscurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51P0PYR5N3BYBZ2H4GJ4G