Endpoint · evidenceGETagent402.tools /api/premarket-quote ?symbol=SPY
Extended-hours quote for a US-listed ticker: latest traded price including pre-market and after-hours sessions, which session it printed in (pre / regular / post / closed), change…
Read more
Extended-hours quote for a US-listed ticker: latest traded price including pre-market and after-hours sessions, which session it printed in (pre / regular / post / closed), change vs. the last regular-session price, and today's session windows. Backed by Yahoo Finance's chart endpoint with includePrePost.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://agent402.tools/api/premarket-quote?symbol=SPY
MCP server on this host: io.github.MikeyPetrillo/agent402
Seen
first 29 days ago · last 13 days ago
41 free handshakes
Payment
Pays through
x402 · MPP evm, tempo
Offered on?
algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC, Solana, stellar:pubnet, Tempo 0x8335…2913
Listed on?
Polygon, Arbitrum, Avalanche, Base, Solana
Score, from free handshakes onlyweights 2026.09.5
UN
RATED
RATED
0.527 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.473: 0.148 uncertain ? + 0.325 short ? · 0.123 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.67 | 0.545 | 0.327 | −0.195 | −0.078 | |
| latency p95 it answered as fast as its class |
0.20 | 0.35 | 0.000 | 0.000 | −0.130 | −0.070 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.527 | gap to 1.000 = 0.473 · 0.325 short · 0.148 uncertain | 0.527 | −0.325 | −0.148 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.545 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.527 → UNRATED: 39 of 30 paid calls weights 2026.09.5 · 39 samples · seed cap_01M1RD9APRSX7512WVBQMBEZ7S|2026-08-26T07:27:02.528Z|2026.09.5
Verify it yourself
npx teppi-check https://agent402.tools/api/premarket-quote?symbol=SPYcurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD9APRSX7512WVBQMBEZ7S