api.usenami.io

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

Shares a payout wallet with 32 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Open interest per venue + ticker. Raw value + mark_price (units vary per venue — see units_note in response).

64
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

93.3% avg
0% 50% 100% Jul 22Aug 1Aug 10Aug 20

Response time

p50 252ms · p95 732ms
0ms 400ms 800ms Jul 22Aug 1Aug 10Aug 20
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
7/22/2026, 12:00:00 AM 100% 1 220ms
7/23/2026, 12:00:00 AM 100% 1 262ms
7/24/2026, 12:00:00 AM 100% 1 258ms
7/25/2026, 12:00:00 AM 100% 1 224ms
7/26/2026, 12:00:00 AM 0% 1 —
7/27/2026, 12:00:00 AM 0% 1 —
7/28/2026, 12:00:00 AM 100% 1 224ms
7/29/2026, 12:00:00 AM 100% 1 221ms
7/30/2026, 12:00:00 AM 100% 1 237ms
7/31/2026, 12:00:00 AM 100% 1 238ms
8/1/2026, 12:00:00 AM 100% 1 231ms
8/2/2026, 12:00:00 AM 100% 1 235ms
8/3/2026, 12:00:00 AM 100% 1 226ms
8/4/2026, 12:00:00 AM 100% 1 219ms
8/5/2026, 12:00:00 AM 100% 1 226ms
8/6/2026, 12:00:00 AM 100% 1 770ms
8/7/2026, 12:00:00 AM 100% 1 235ms
8/8/2026, 12:00:00 AM 100% 1 231ms
8/9/2026, 12:00:00 AM 100% 1 226ms
8/10/2026, 12:00:00 AM 100% 1 261ms
8/11/2026, 12:00:00 AM 100% 1 280ms
8/12/2026, 12:00:00 AM 100% 1 234ms
8/13/2026, 12:00:00 AM 100% 1 279ms
8/14/2026, 12:00:00 AM 100% 1 232ms
8/15/2026, 12:00:00 AM 100% 1 279ms
8/16/2026, 12:00:00 AM 100% 1 238ms
8/17/2026, 12:00:00 AM 100% 1 263ms
8/18/2026, 12:00:00 AM 100% 5 229ms
8/19/2026, 12:00:00 AM 100% 21 254ms
8/20/2026, 12:00:00 AM 100% 16 252ms
64
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
97

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
67

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
5

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
—
Domain registered
—
Hosting network
SGP_VULTR_CUST
Hosting country
SG

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

821
payments (30d)
1.53
USD volume (30d)
10
paying wallets (30d)

Payments per day

last payment 8/17/2026
0 100 200 Jul 22Jul 30Aug 8Aug 17
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
7/22/2026 60 0.08 3
7/23/2026 123 0.13 3
7/24/2026 70 0.07 2
7/25/2026 42 0.05 3
7/26/2026 30 0.04 4
7/27/2026 9 0.01 3
7/28/2026 24 0.02 3
7/29/2026 49 0.27 4
7/30/2026 27 0.06 3
7/31/2026 21 0.02 2
8/1/2026 33 0.03 2
8/2/2026 31 0.03 1
8/3/2026 37 0.04 2
8/4/2026 44 0.04 2
8/5/2026 45 0.05 2
8/6/2026 67 0.2 3
8/7/2026 16 0.02 3
8/8/2026 7 0.01 1
8/9/2026 2 0 1
8/10/2026 3 0 2
8/11/2026 15 0.04 3
8/12/2026 28 0.15 1
8/14/2026 4 0.01 1
8/15/2026 28 0.14 1
8/16/2026 4 0.01 2
8/17/2026 2 0 1

This payout wallet is shared: figures cover all 33 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://api.usenami.io/v1/perp/oi-delta x402 endpoint https://api.usenami.io/v1/perp/arbitrage/price x402 endpoint https://api.usenami.io/v1/perp/arbitrage/funding-signal x402 endpoint https://api.usenami.io/v1/perp/arbitrage/funding x402 endpoint
Response schema 
{
  "$ref": "#/components/schemas/PerpOpenInterestResponse"
}