passlisted in Coinbase#6 by calls of 8 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
- 2
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-04 01:27 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 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 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 goodsong.dev, verify seller takes POST requests, is listed in the Coinbase registry, and falls under identity by TOLL's rules.
verify seller is priced at 0.005 USDC on Base.
Requests carry a json body with the fields method and resource_url.
verify seller returns json; the example shows cost, checks, verdict, evidence, canonical and latency_ms.
verify seller answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Of goodsong.dev's 8 listings, verify seller ranks 6th by calls.
6% of the host's counted calls go to it.
Over 30 days: 2 calls, one payer.
verify seller was last called 12 days before the snapshot.
Closest in price to verify seller within identity: screen at sanctions.nsgoods.org and my usage at agent402.tools.
verify seller is priced above 20% of comparable listings in identity.
The payee wallet is shared by 8 listings on one host.
The seller's tags on verify seller are seller, trust, x402 and due-diligence.
The price of verify seller is declared by 128 other listings in identity 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 | 0xf3b36a…e58de1 |
the checks, as of 2026-09-15 06:59 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 06:59 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 06:26 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 06:16 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 09:10 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 14:44 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 2026-09-04 01:27 UTC · method · live
The input and output block
{
"input": {
"body": {
"method": "POST",
"resource_url": "https://api.example.com/paid-endpoint"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"cost": {
"amount": "0.005",
"currency": "USDC"
},
"checks": {
"exists": true,
"payto_sanctioned": false,
"declaration_consistent": true
},
"verdict": "confirmed",
"evidence": [
{
"url": "https://api.example.com/paid-endpoint",
"source": "direct_fetch",
"retrieved_at": "2026-08-30T12:00:00Z"
},
{
"url": "https://mainnet.base.org",
"source": "chainalysis",
"retrieved_at": "2026-08-30T12:00:00Z"
},
{
"url": "https://api.blockscout.com/v2/api",
"source": "blockscout",
"retrieved_at": "2026-08-30T12:00:00Z"
},
{
"url": "https://cairnwake.com/r/df2f7a42.html",
"source": "cairn",
"retrieved_at": "2026-08-30T12:00:00Z"
}
],
"canonical": {
"tags": [
"example"
],
"payto": "0x0000000000000000000000000000000000dEaD",
"network": "eip155:8453",
"description": "An example x402 service.",
"resource_url": "https://api.example.com/paid-endpoint",
"service_name": "example-service",
"wallet_age_days": 412.3,
"wallet_tx_count": 87,
"cairn_conformance": {
"date": "2026-09-02",
"score": {
"total": 16,
"passed": 16,
"inconclusive": 0,
"observations": 2
},
"verdict": "PASS",
"report_url": "https://cairnwake.com/r/df2f7a42.html"
}
},
"latency_ms": 640
}
}
}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, "verify seller on goodsong.dev", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/goodsong-dev-verify-seller-f18ae4/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-goodsong-dev-verify-seller-f18ae4-2026-09-15T16-57Z,
author = {TOLL},
title = {verify seller on goodsong.dev},
howpublished = {\url{https://tollindex.com/e/goodsong-dev-verify-seller-f18ae4/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.