Endpoint · evidenceGETfinance-api.kdlcfa.workers.dev /sp500-index
S&P 500 spot index quote, delayed, via Yahoo Finance
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://finance-api.kdlcfa.workers.dev/sp500-index
Seen
first 34 days ago · last 12 hr ago
19 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Handshakescomputed 1 day ago
0.212 from 11 free handshakes over 30 days · UNRATED ?
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.78 | 0.020 | 0.012 | −0.129 | −0.459 | |
| 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 | 0.212 | gap to 1.000 = 0.788 · 0.329 short · 0.459 uncertain | 0.212 | −0.329 | −0.459 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
BURN_INFREE_TIER_ONLY
Verify it yourself
npx teppi-check https://finance-api.kdlcfa.workers.dev/sp500-indexcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59NZD1ZY0905V949VR2HB