Endpoint · researchGETagents.x402stock.xyz /api/v1/backtest/AAPL
Backtests a simple rule on a US stock and returns a finished report PNG.
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Backtests a simple rule on a US stock and returns a finished report PNG. Runs an SMA crossover (?strategy=sma_cross&fast=50&slow=200) or RSI mean-reversion (?strategy=rsi_reversion&period=14&lower=30&upper=70) over daily history (?years=, max 5), no lookahead, rendered as an equity curve vs buy & hold. Returns full stats plus a hosted `artifact.png_url`. From x402stockOverview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.50 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://agents.x402stock.xyz/api/v1/backtest/AAPL
Seen
first 34 days ago · last 9 days ago
63 free handshakes
Payment
Pays through
x402 · MPP stripe, tempo
Offered on?
Base USDC, zeroclick:card, Tempo USDC.e
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.701 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.299: 0.083 uncertain ? + 0.216 short ? · 0.099 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 0.97 | 0.835 | 0.501 | −0.016 | −0.083 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.701 | gap to 1.000 = 0.299 · 0.216 short · 0.083 uncertain | 0.701 | −0.216 | −0.083 |
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 × 0.835 liveness
+ 0.200 × 1.000 price stability
= 0.701 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A5Q7MKZ40QCVFNAM41NX4N|2026-09-03T11:45:07.927Z|2026.09.6
Verify it yourself
npx teppi-check https://agents.x402stock.xyz/api/v1/backtest/AAPLcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q7MKZ40QCVFNAM41NX4N