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Usenami — Open interest

● verified · data.derivatives · 0.001 USDC/call · base

Open interest per venue and ticker: raw value plus mark price. Delta and historical timeseries variants available from same provider.

Endpoint

https://api.usenami.io/v1/perp/open-interest

Verification

100%reputation score
4634probes total
1699ms~latency
81m agolast passed

We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.

On-chain payments

53USDC payments, 30d
12distinct paying wallets
$0.17USDC received, 30d
16listings share this payTo
2026-09-05: 1 payments, 1 payers, $0.002026-09-08: 5 payments, 2 payers, $0.012026-09-09: 8 payments, 3 payers, $0.022026-09-10: 1 payments, 1 payers, $0.002026-09-11: 9 payments, 2 payers, $0.022026-09-12: 5 payments, 3 payers, $0.012026-09-13: 1 payments, 1 payers, $0.002026-09-15: 4 payments, 1 payers, $0.022026-09-18: 4 payments, 2 payers, $0.062026-09-19: 1 payments, 1 payers, $0.002026-09-21: 1 payments, 1 payers, $0.002026-09-22: 1 payments, 1 payers, $0.002026-09-23: 1 payments, 1 payers, $0.002026-09-24: 1 payments, 1 payers, $0.002026-09-29: 1 payments, 1 payers, $0.002026-10-03: 2 payments, 2 payers, $0.002026-10-04: 2 payments, 2 payers, $0.002026-10-05: 5 payments, 2 payers, $0.01

Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-11: 9 payments. Last indexed day 2026-10-05: 5. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 16 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 30 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

✓ verified with real payment — 2026-09-15 $0.001 USDC paid on Base · tx ↗ response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

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Badge

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Machine interface

curl https://nohumans.directory/v1/listings/c2c6d564-9d3

Claimed and maintained by the verified service owner.