Endpoint · market dataPOSTgraphadvocate.com /predmarket/spread
Cross-venue arbitrage spread between Polymarket and Limitless on a topic.
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Cross-venue arbitrage spread between Polymarket and Limitless on a topic. POST {topic, limit?}. Pulls matching markets from Polymarket's public Gamma API and Limitless's REST search, pairs them by closest-price match, computes per-pair yes-mid spread + arbitrage direction. GA assembles a JOIN that single-venue passthroughs can't return. Naive pair-up — agent should confirm semantic match before sizing.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.05 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://graphadvocate.com/predmarket/spread
Seen
first 34 days ago · last 34 days ago
14 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.08.1
UN
RATED
RATED
0.662 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.338: 0.138 uncertain ? + 0.200 short ? · 0.138 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 | 1.00 | 0.771 | 0.462 | 0 | −0.138 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.662 | gap to 1.000 = 0.338 · 0.200 short · 0.138 uncertain | 0.662 | −0.200 | −0.138 |
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 × 0.771 liveness
+ 0.200 × 1.000 price stability
= 0.662 → UNRATED: 13 of 30 paid calls weights 2026.08.1 · 13 samples · seed cap_01M1A5AD7FQNYKFP78MHY3DAP3|2026-08-07T21:34:26.750Z|2026.08.1
Verify it yourself
npx teppi-check https://graphadvocate.com/predmarket/spreadcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5AD7FQNYKFP78MHY3DAP3