x402 census · api.usenami.io · 7e7bfa72efd1 · JSON
GET /v1/perp/vw-spread
unprobed
Volume-weighted average funding rate across all tracked venues for one crypto perpetual. Accounts for venue market share — high-volume venues dominate the weighted rate, so it reflects what the market actually pays rather than a flat average across thin and deep venues alike.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://api.usenami.io/v1/perp/vw-spread |
| Method | GET |
| Price | $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x1538726707212F4dB3EB67cEc0910422A310475c |
| Seller | api.usenami.io |
| Catalogs | cdp (row updated 2026-09-11) |
| Listed since (lower bound) | 2026-09-11 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-11 |
| CDP quality counters | 2 calls and 2 unique payers in 30 days, last call 2026-09-11 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Usenami · funding, perpetual, trading, multi-venue, market-data |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 8 |
| Payments | 29 |
| USDC volume | $0.07 |
| Median payment | $0.002 |
| First / last payment | 2026-07-13 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x1538726707212F4dB3EB67cEc0910422A310475c |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"canonical_id": {
"description": "Disambiguates a ticker that names two unrelated assets; a 409 on the ticker alone names the candidates.",
"required": false,
"type": "string"
},
"ticker": {
"description": "Base ticker (e.g. BTC, ETH). Required.",
"required": true,
"type": "string"
}
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"simple_avg_rate": 0.0001,
"ticker": "BTC",
"top_contributors": [
{
"rate": 0.0001,
"venue": "binance",
"volume_24h_usd": 5500000000,
"weight_pct": 49.87
}
],
"total_volume_24h_usd": 11029446855.42,
"updated_at": "2026-05-31T17:03:12Z",
"venues_count": 18,
"vw_rate": 0.000085
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://api.usenami.io/v1/perp/vw-spread' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/7e7bfa72efd1/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"7e7bfa72efd1"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.usenami.io.