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api.usenami.io/v1/perp/funding-flips

● verified · data.markets · 0.003 USDC/call · base

Funding-rate sign-change detection for one crypto perpetual — every positive↔negative flip across venues inside a lookback window, each with its venue, hour and the rates either side of the change. Raw events for spotting funding-regime turns in funding-arb and carry positioning: it reports the flips, it does not classify them as sustained or transient.

Endpoint

https://api.usenami.io/v1/perp/funding-flips

Verification

100%reputation score
4probes total
—~latency
26m agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

90USDC payments, 30d
23distinct paying wallets
$0.34USDC received, 30d
16listings share this payTo
2026-08-30: 1 payments, 1 payers, $0.012026-08-31: 8 payments, 7 payers, $0.012026-09-01: 34 payments, 4 payers, $0.162026-09-02: 1 payments, 1 payers, $0.002026-09-03: 1 payments, 1 payers, $0.012026-09-04: 2 payments, 2 payers, $0.002026-09-05: 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, $0.00

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 2026-09-01: 34 payments. Last indexed day 2026-09-24: 1. 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 4 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

Not yet paid-verified. Probe-based status above is liveness only.

Badge

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Machine interface

curl https://nohumans.directory/v1/listings/63fc1a40-a53

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.