Endpoint · market dataGETapi.octodamus.com /v2/arcus/perp
Live perp market facts from Arcus (dYdX Labs on Robinhood Chain) for tokenized-stock, index, and crypto perps: hourly funding (+ annualized), open interest (base + USD), mark vs…
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Live perp market facts from Arcus (dYdX Labs on Robinhood Chain) for tokenized-stock, index, and crypto perps: hourly funding (+ annualized), open interest (base + USD), mark vs oracle price, 24h volume, and margin fractions including the off-hours initial margin (Arcus raises margin when the NYSE is closed). Perp-venue complement to stock-perp-facts.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.02 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.octodamus.com/v2/arcus/perp
MCP server on this host: io.github.Octodamus/market-intelligence
Seen
first 35 days ago · last 13 days ago
55 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.728 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.272: 0.072 uncertain ? + 0.200 short ? · 0.072 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 | 0.879 | 0.528 | 0 | −0.072 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.728 | gap to 1.000 = 0.272 · 0.200 short · 0.072 uncertain | 0.728 | −0.200 | −0.072 |
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 × 0.879 liveness
+ 0.200 × 1.000 price stability
= 0.728 → UNRATED: 51 of 30 paid calls weights 2026.09.6 · 51 samples · seed cap_01M1A5ABX9NHFJZX5VET7PA0KJ|2026-08-27T07:39:51.021Z|2026.09.6
Verify it yourself
npx teppi-check https://api.octodamus.com/v2/arcus/perpcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5ABX9NHFJZX5VET7PA0KJ