passlisted in Coinbase#2 by calls of 2 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
- 1
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-25 18:14 UTC
- First observed by TOLLderived
- 2026-09-25
- 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 31 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.
verifier.quantumshieldlabs.dev serves preflight, a POST endpoint that TOLL places in identity, listed in the Coinbase registry.
Per call, preflight declares 0.005 USDC on Base.
preflight takes a json body with the fields action_type, constraints, operation_id, evidence_items, authority_scope and requested_action.
preflight returns json; the example shows reasons, decision, reason_code, operation_id, receipt_hash, missing_evidence and 2 others.
preflight answered the sweep of 2026-10-04 with a valid 402, as at every sweep since 2026-09-25.
preflight is one of 2 listed endpoints on verifier.quantumshieldlabs.dev, 2nd by calls among them.
preflight takes 25% of the calls counted across verifier.quantumshieldlabs.dev.
In the trailing 30 days: one call, one payer.
preflight was last called 9 days before the snapshot.
Closest in price to preflight within identity: chain ens at api.onesource.io and by username at x402.twit.sh.
Among comparable prices in identity, preflight sits above 18% of them.
3 listed endpoints across 2 hosts pay to the same wallet.
The price of preflight is declared by 180 other listings in identity too.
the payment options, as of 2026-10-04 21:22 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x550205…F1d057 |
the checks, as of 2026-10-04 14:14 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-04 14:14 UTC | pass | 0 | daily-2026-10-04 |
| 2026-10-03 07:35 UTC | pass | 0 | daily-2026-10-03 |
| 2026-10-02 16:43 UTC | pass | 0 | daily-2026-10-02 |
| 2026-10-01 09:25 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 08:54 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 20:59 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-25 23:54 UTC | pass | 0 | new-after-daily-2026-09-25 |
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 2026-09-25 18:14 UTC · method · live
The input and output block
{
"input": {
"body": {
"action_type": "purchase",
"constraints": {
"max_spend_usd": "5.00",
"required_evidence": [
"inventory_check"
],
"prohibited_destinations": [
"blocked-market.example"
]
},
"operation_id": "purchase-42",
"evidence_items": [
{
"name": "inventory_check",
"result": true
}
],
"authority_scope": {
"denied_action_types": [
"withdraw"
],
"allowed_action_types": [
"purchase"
],
"human_approval_action_types": [
"transfer"
]
},
"requested_action": {
"spend_usd": "4.50",
"description": "Buy an approved test asset",
"destination": "approved-market.example"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"reasons": [
"submitted request satisfies submitted policy"
],
"decision": "ALLOW",
"reason_code": "P001",
"operation_id": "purchase-42",
"receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
"missing_evidence": [],
"evidence_boundary": "caller_supplied",
"authority_boundary": "advisory_only: does not execute, authorize, or independently observe an action",
"matched_constraints": [
"authority_scope.allowed_action_types",
"constraints.max_spend_usd",
"constraints.required_evidence"
]
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-04 21:22 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "preflight on verifier.quantumshieldlabs.dev", snapshot of 2026-10-04 21:22 UTC. https://tollindex.com/e/verifier-quantumshieldlabs-dev-x402-preflight-cccffa/at/2026-10-04T21-22Z. Accessed [access date].
BibTeX
@misc{toll-e-verifier-quantumshieldlabs-dev-x402-preflight-cccffa-2026-10-04T21-22Z,
author = {TOLL},
title = {preflight on verifier.quantumshieldlabs.dev},
howpublished = {\url{https://tollindex.com/e/verifier-quantumshieldlabs-dev-x402-preflight-cccffa/at/2026-10-04T21-22Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-04 21:22 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.