passlisted in Coinbase#1 by calls of 2 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
- 1
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-04 20:58 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.01 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 mcp.onchaindiligence.com, preflight payment takes POST requests, is listed in the Coinbase registry, and falls under identity by TOLL's rules.
On Base, preflight payment asks 0.01 USDC per call.
Requests carry a json body with the fields action, policy, options and references.
preflight payment returns json; the example shows checks, receipt and decision.
The daily sweep got a valid payment challenge from preflight payment on 2026-09-15, as at every sweep since 2026-09-11.
mcp.onchaindiligence.com lists 2 endpoints; preflight payment is tied 1st by calls with 1 other.
It accounts for 50% of the calls counted across the host.
preflight payment drew a single call from a single payer in the trailing 30 days.
The last call to preflight payment came 11 days before the snapshot, 2026-09-04.
Closest in price to preflight payment within identity: attested screening at rubric-protocol.com and items at spawnxchange-api-485602182462.europe-west4.run.app.
preflight payment is priced above 31% of comparable listings in identity.
The wallet paid by preflight payment is the payee of 2 endpoints on one host.
Exactly this price appears on 516 other listings in identity.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0x63c347…b6c897 |
the checks, as of 2026-09-15 03:52 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 03:52 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 03:51 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 03:51 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 06:06 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 09:30 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 20:58 UTC · method · live
The input and output block
{
"input": {
"body": {
"action": {
"kind": "PAYMENT",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1.00",
"sender": null,
"network": "eip155:8453",
"resource": "https://service.example/api",
"recipient": "0x000000000000000000000000000000000000dEaD"
},
"policy": {
"max_amount": "5.00",
"allowed_assets": [
"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
],
"allowed_networks": [
"eip155:8453"
],
"expected_recipient": null,
"allowed_resource_origins": [
"https://service.example"
]
},
"options": {
"screen_recipient_sanctions": true
},
"references": {
"mandate_digest": null
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"checks": [
{
"id": "amount-within-max",
"result": "PASS",
"summary": "The proposed amount is within the caller-configured maximum.",
"evidence_digest": null
}
],
"receipt": {
"proof": {
"key_id": "ed25519-EXAMPLEKEY000000",
"signed": true,
"algorithm": "ed25519",
"signature": "UN4TzBvkRsf0eGm4…ZFyElhq1Cg"
},
"schema": "onchaindiligence.public-action-receipt.v1",
"receipt": {
"receipt_id": "OCD-RCP-EXAMPLE-0000-0000-0000",
"receipt_type": "PREFLIGHT"
}
},
"decision": {
"status": "ALLOW",
"reasons": [
"All configured policy checks passed."
],
"authorized": true
}
}
}
}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, "preflight payment on mcp.onchaindiligence.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/mcp-onchaindiligence-com-x402-preflight-payment-063625/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-mcp-onchaindiligence-com-x402-preflight-payment-063625-2026-09-15T16-57Z,
author = {TOLL},
title = {preflight payment on mcp.onchaindiligence.com},
howpublished = {\url{https://tollindex.com/e/mcp-onchaindiligence-com-x402-preflight-payment-063625/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.