passlisted in Coinbase#2 by calls of 28 on this host
0.005 USDC
per call, as the listing declares it on eip155:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 4
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-12 19:57 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 USDC
- Networks
- 1
How has the volume on this endpoint moved?
api.usenami.io lists 28 endpoints; perp basis is tied 2nd by calls with 5 others.
Its declared inputs are the query parameters ticker and canonical_id.
perp basis returns json; the example shows items, ticker, methodology, venues_count and venues_without_index.
perp basis drew 4 calls from one payer in the trailing 30 days.
The last call to perp basis came 3 days before the snapshot, 2026-09-12.
Each call is priced at 0.005 USDC, payable on Base.
perp basis takes 6% of the calls counted across api.usenami.io.
api.usenami.io serves perp basis, a GET endpoint that TOLL places in market data, listed in the Coinbase registry.
perp basis answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to perp basis within market data: chain erc20 transfers at api.onesource.io and tick latest at tick.hugen.tokyo.
perp basis is priced above 24% of comparable listings in market data.
Across market data, 5,172 endpoints carry counters and perp basis out-counts 70% of them.
Its payee wallet receives for 29 listed endpoints on one host.
The seller's tags on perp basis are funding, perpetual, trading and multi-venue.
The price of perp basis is declared by 481 other listings in market data too.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x153872…10475c |
the checks, as of 2026-09-15 04:40 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 04:40 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 04:36 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 04:34 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 06:51 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 10:25 UTC | pass | 0 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-09-12 19:57 UTC · method · live
The input and output block
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ticker": {
"type": "string",
"required": true,
"description": "Base ticker (e.g. BTC, ETH). Required."
},
"canonical_id": {
"type": "string",
"required": false,
"description": "Disambiguates a ticker that names two unrelated assets; a 409 on the ticker alone names the candidates."
}
}
},
"output": {
"type": "json",
"example": {
"items": [
{
"venue": "paradex",
"basis_bps": -2.31,
"structure": "backwardation",
"mark_price": 60278.9,
"updated_at": "2026-06-27T21:00:00Z",
"asset_class": "crypto",
"index_price": 60292.9,
"basis_reliable": true,
"liquidity_state": "live"
}
],
"ticker": "BTC",
"methodology": "basis_bps = (mark_price − index_price)/index_price × 10000; structure = basis sign (contango/backwardation/flat/unknown)",
"venues_count": 18,
"venues_without_index": [
"Crypto.com",
"Variational",
"dYdX"
]
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-09-15 16:57 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "perp basis on api.usenami.io", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/api-usenami-io-v1-perp-basis-4c3b5d/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-api-usenami-io-v1-perp-basis-4c3b5d-2026-09-15T16-57Z,
author = {TOLL},
title = {perp basis on api.usenami.io},
howpublished = {\url{https://tollindex.com/e/api-usenami-io-v1-perp-basis-4c3b5d/at/2026-09-15T16-57Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 16:57 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.