passlisted in Coinbase#2 by calls of 177 on this host
0.01 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
- 2
- Unique payers, trailing 30 days
- 2
- Last called
- 2026-10-11 00:26 UTC
- First observed by TOLLderived
- 2026-10-10
- Pricederived
- 0.01 USDC
- Networks
- 2
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 2 times across 10 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.
TOLL first observed it on 2026-10-10.
buy first wave, a GET endpoint on underground.substratesymposium.com, appears in the Coinbase registry; TOLL's taxonomy puts it in the "other" category.
buy first wave is priced at 0.01 USDC on Base.
Its declared input names no parameters.
buy first wave answered the sweep of 2026-10-23 with a valid 402, as at every sweep since 2026-10-10.
A response from buy first wave, as declared, includes title, content, product and delivered_at.
buy first wave accepts payment on Base and Solana, 2 options in all, to 2 different wallets.
Of underground.substratesymposium.com's 177 listings, buy first wave ranks tied 2nd by calls with 170 others.
buy first wave drew 2 calls from 2 unique payers in the trailing 30 days, every call from a different payer.
buy first wave was last called 3 days before the snapshot.
Closest in price to buy first wave within the "other" category: tools research at win.oneshotagent.com and merchants at www.x402scan.com.
buy first wave is priced above 55% of comparable listings in the "other" category.
The wallet paid by buy first wave is the payee of 179 endpoints across 2 hosts.
The price of buy first wave is declared by 1,086 other listings in the "other" category too.
the payment options, as of 2026-10-13 14:08 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xA3bAbB…d18E08 |
| Coinbase | solana: | USDC | 0.01 USDC | exact | 5HK2dGaa…tX1tkN |
the checks, as of 2026-10-23 08:58 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-23 08:58 UTC | pass | 0 | daily-2026-10-23 |
| 2026-10-21 11:30 UTC | pass | 0 | daily-2026-10-21 |
| 2026-10-20 11:06 UTC | pass | 0 | daily-2026-10-20 |
| 2026-10-19 08:42 UTC | pass | 0 | daily-2026-10-19 |
| 2026-10-18 10:40 UTC | pass | 0 | daily-2026-10-18 |
| 2026-10-17 21:00 UTC | pass | 0 | daily-2026-10-17 |
| 2026-10-16 06:50 UTC | pass | 0 | daily-2026-10-16 |
| 2026-10-15 08:37 UTC | pass | 0 | daily-2026-10-15 |
| 2026-10-14 06:41 UTC | pass | 0 | daily-2026-10-14 |
| 2026-10-13 11:24 UTC | pass | 0 | daily-2026-10-13 |
| 2026-10-12 08:45 UTC | pass | 0 | daily-2026-10-12 |
| 2026-10-11 07:28 UTC | pass | 0 | daily-2026-10-11 |
| 2026-10-10 15:33 UTC | pass | 0 | daily-2026-10-10 |
| 2026-10-10 06:33 UTC | pass | 0 | new-after-daily-2026-10-10 |
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 2026-10-11 00:26 UTC · method · live
The input and output block
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"title": "First Wave",
"content": "Gold rush history for understanding early-mover advantage and risk-taking.",
"product": "first_wave",
"delivered_at": "2026-04-24T10:00:00Z"
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-13 14:08 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "buy first wave on underground.substratesymposium.com", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/underground-substratesymposium-com-buy-first-wave-736d0b/at/2026-10-13T14-08Z. Accessed [access date].
BibTeX
@misc{toll-e-underground-substratesymposium-com-buy-first-wave-736d0b-2026-10-13T14-08Z,
author = {TOLL},
title = {buy first wave on underground.substratesymposium.com},
howpublished = {\url{https://tollindex.com/e/underground-substratesymposium-com-buy-first-wave-736d0b/at/2026-10-13T14-08Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.