passabsent from every registry#3 by calls of 9 on this host
0.001 USDC
per call, as the listing declares it on eip155:
Compare with anotherEvery figure as JSONCite this page
the price, as of 2026-09-22 11:36 UTC · method
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- — / 100% / 100%
- Calls, trailing 30 days
- 5
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-08-23 15:37 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.001 USDC
- Networks
- 1
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 54 observations, and 3 changes are the fewest this site will draw a trace through, because two points and a guess are not a series. Every observation is in the JSON.
At sovereign-x402-zeta.vercel.app, sequence harmonic takes POST requests, is listed in neither registry at the last pull, and falls under inference by TOLL's rules.
sequence harmonic is priced at 0.001 USDC on Base.
The request to sequence harmonic is a json body with the field n.
It declares json output but gives no example.
sequence harmonic answered the sweep of 2026-09-22 with a valid 402, as at every sweep since 2026-09-11.
sequence harmonic shares sovereign-x402-zeta.vercel.app with 8 other listed endpoints and is 3rd by calls.
sequence harmonic takes 21% of the calls counted across sovereign-x402-zeta.vercel.app.
One payer accounts for all 5 calls to sequence harmonic over 30 days.
sequence harmonic was last called 45 days before the snapshot.
Closest in price to sequence harmonic within inference: report at topagentx402.vercel.app and contents at api.exa.ai.
No comparable listing in inference is cheaper.
sequence harmonic out-counts 97% of the 12,443 endpoints in inference that carry counters.
The wallet paid by sequence harmonic is the payee of 30 endpoints on one host.
sequence harmonic was missing from the Coinbase registry at the pull of 2026-09-22, confirmed at the pull of 2026-09-22; that is registry presence, not liveness.
The price of sequence harmonic is declared by 300 other listings in inference too.
Where the sentences above compare this endpoint with others, the comparison is against the index as it stands now, live; the figures above are final.
the payment options, as of 2026-09-22 11:36 UTC · method
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0x41595e…31Ad3C |
the checks, as of 2026-09-22 07:32 UTC · methodendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-22 07:32 UTC | pass | 0 | daily-2026-09-22 |
| 2026-09-21 07:54 UTC | pass | 0 | daily-2026-09-21 |
| 2026-09-19 05:54 UTC | pass | 0 | daily-2026-09-19 |
| 2026-09-18 14:32 UTC | pass | 0 | daily-2026-09-18 |
| 2026-09-17 05:46 UTC | pass | 0 | daily-2026-09-17 |
| 2026-09-16 05:46 UTC | pass | 0 | daily-2026-09-16 |
| 2026-09-15 06:03 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 05:34 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 05:28 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 07:45 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 11:36 UTC | pass | 0 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- absence from Coinbase confirmed, rule v1
- absent from Coinbase at this pull
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-08-23 15:37 UTC · method
The input and output block
{
"input": {
"body": {
"n": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {}
}
}Cite this page
This endpoint is delisted: the page is frozen at its last observation and its live URL is the stable one. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "sequence harmonic on sovereign-x402-zeta.vercel.app". https://tollindex.com/e/sovereign-x402-zeta-vercel-app-api-v1-sequence-harmonic-a0b9fd. Accessed [access date].
BibTeX
@misc{toll-e-sovereign-x402-zeta-vercel-app-api-v1-sequence-harmonic-a0b9fd-2026-10-07,
author = {TOLL},
title = {sequence harmonic on sovereign-x402-zeta.vercel.app},
howpublished = {\url{https://tollindex.com/e/sovereign-x402-zeta-vercel-app-api-v1-sequence-harmonic-a0b9fd}},
year = {2026},
month = {10},
note = {Frozen at its last observation, 2026-10-07 05:57 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.