← All endpoints
api.octodamus.com arcus perp
https://api.octodamus.com/v2/arcus/perp
answers 402
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.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.02
- Network
- base
- Pay to
- 0x5c6B3a3dAe296d3cef50fef96afC73410959a6Db
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 608 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:19:30.929Z (19d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.octodamus.com%2Fv2%2Farcus%2Fperp"