passlisted in Coinbase#1 by calls of 2 on this host
0.002 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
- 3
- Unique payers, trailing 30 days
- 3
- Last called
- 2026-09-14 19:48 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.002 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 2 times across 28 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 attester.dev, package exists takes POST requests, is listed in the Coinbase registry, and falls under market data by TOLL's rules.
package exists is priced at 0.002 USDC on Base.
Callers of package exists supply a json body with the fields name and ecosystem.
A response from package exists, as declared, includes proof, exists, latest_version and typosquat_adjacent.
package exists answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Of attester.dev's 2 listings, package exists ranks 1st by calls.
75% of the host's counted calls go to it.
The registry's counters give package exists 3 calls and 3 unique payers over 30 days, every call from a different payer.
The last call to package exists came 1 day before the snapshot, 2026-09-14.
Closest in price to package exists within market data: price btc usd at vibesprings.net and perp funding at agent402.tools.
package exists is priced above 10% of comparable listings in market data.
Across market data, 5,172 endpoints carry counters and package exists out-counts 59% of them.
The payee wallet is shared by 2 listings on one host.
The seller's tags on package exists are oracle, packages, hallucination-check and x402, and its label is "ai".
The price of package exists is declared by 277 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 | 0.002 USDC | exact | 0x57407D…7467dD |
the checks, as of 2026-09-15 06:33 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 06:33 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 06:02 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 05:54 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 08:11 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 12:10 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 2026-09-14 19:48 UTC · method · live
The input and output block
{
"input": {
"body": {
"name": "requests",
"ecosystem": "pypi"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"proof": {
"source_url": "https://pypi.org/project/requests/",
"artifact_sha256": "0x…"
},
"exists": true,
"latest_version": "2.32.3",
"typosquat_adjacent": false
}
}
}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, "package exists on attester.dev", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/attester-dev-v1-package-exists-cba784/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-attester-dev-v1-package-exists-cba784-2026-09-15T16-57Z,
author = {TOLL},
title = {package exists on attester.dev},
howpublished = {\url{https://tollindex.com/e/attester-dev-v1-package-exists-cba784/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.