Endpoint · market dataGETx402engine.app /api/crypto/price ?currencies=usd%2Ceur&ids=bitcoin%2Cethereum&include_24h_change=true&include_market_cap=false
Real-time cryptocurrency prices for any coin in any fiat currency
Overview
Grade?
UNRATED
27 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
34
29 delivered · 5 no answer
More info
Seller?
URL
https://x402engine.app/api/crypto/price?currencies=usd%2Ceur&ids=bitcoin%2Cethereum&include_24h_change=true&include_market_cap=false
Seen
first 34 days ago · last 9 hr ago
78 free handshakes
Payment
Pays through
x402
Offered on?
eip155:4326, Base USDC, Solana
Listed on?
Base, Solana
Scoreweights 2026.09.6
UN
RATED
RATED
0.764 outcome verified, no letter
To a letter · 30 paid calls
27 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.236: 0.216 uncertain ? + 0.019 short ? · 0.036 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| correctnesscosts the most the answer was right |
0.41 | 1.00 | 0.744 | 0.306 | 0 | −0.105 | |
| honesty it charged what it advertised |
0.29 | 1.00 | 0.772 | 0.227 | 0 | −0.067 | |
| liveness it answered at all |
0.18 | 1.00 | 0.772 | 0.136 | 0 | −0.040 | |
| latency p95 it answered as fast as its class |
0.06 | 0.67 | 0.609 | 0.036 | −0.019 | −0.004 | |
| price stability the price stayed where it was listed |
0.06 | 1.00 | 1.000 | 0.059 | 0 | 0 | |
| Composite | 1.00 | 0.764 | gap to 1.000 = 0.236 · 0.019 short · 0.216 uncertain | 0.764 | −0.019 | −0.216 |
Not measured: schema conformance · no answer had a published shape to check
The multiplication, written out
0.412 × 0.744 correctness
+ 0.294 × 0.772 honesty
+ 0.176 × 0.772 liveness
+ 0.059 × 0.609 latency p95
+ 0.059 × 1.000 price stability
= 0.764 → UNRATED: 27 of 30 paid calls weights 2026.09.6 · 27 samples · seed cap_01M1A5A1BFNRS80RFKPZ0WNXDM|2026-07-06T09:16:09.270Z|2026.09.6
Verify it yourself
npx teppi-check https://x402engine.app/api/crypto/price?currencies=usd%2Ceur&ids=bitcoin%2Cethereum&include_24h_change=true&include_market_cap=falsecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A1BFNRS80RFKPZ0WNXDM