passabsent from every registrycounted above 0% of Other
1 USDC
per call, as the listing declares it on eip155:
Compare with anotherEvery figure as JSONCite this page
the price, as of 2026-09-18 20:53 UTC · method
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- — / — / 100%
- Calls, trailing 30 days
- 1
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-08-19 21:36 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 1 USDC
- Networks
- 1
How has the volume on this endpoint moved?
launchcheck-x402.fly.dev serves proposal check, a POST endpoint that TOLL places in the "other" category, listed in neither registry at the last pull.
Per call, proposal check declares 1 USDC on Base.
proposal check takes a json body with the fields proposal, constraints, proposalType, productContext, targetAudience and desiredDecision.
A response from proposal check, as declared, includes meta, report and requestId.
The daily sweep got a valid payment challenge from proposal check on 2026-09-17, as at every sweep since 2026-09-11.
launchcheck-x402.fly.dev lists no other endpoint.
proposal check drew a single call from a single payer in the trailing 30 days.
The last call to proposal check came 55 days before the snapshot, 2026-08-19.
Closest in price to proposal check within the "other" category: intelligence address at api.arkm.com and services vulnerability audit at www.cultos.dev.
proposal check is near the top of prices in the "other" category; 99% of comparable listings are cheaper.
The wallet paid by proposal check is the payee of 3 endpoints on one host.
Seller tags: proposal-review, product-validation, product-strategy and technical-review.
proposal check was missing from the Coinbase registry at the pull of 2026-09-19, confirmed at the pull of 2026-09-19; that is registry presence, not liveness.
Where the sentences above compare this endpoint with others, the comparison is against the index as it stands now, live; the figures above are final.
the payment options, as of 2026-09-18 20:53 UTC · method
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 1 USDC | exact | 0x87F929…28DBa4 |
the checks, as of 2026-09-17 06:50 UTC · methodendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-17 06:50 UTC | pass | 0 | daily-2026-09-17 |
| 2026-09-16 06:47 UTC | pass | 0 | daily-2026-09-16 |
| 2026-09-15 07:03 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 06:30 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 06:19 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 10:07 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 14:48 UTC | pass | 0 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- absence from Coinbase confirmed, rule v1
- absent from Coinbase at this pull
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-08-19 21:36 UTC · method
The input and output block
{
"input": {
"body": {
"proposal": "Build a narrow paid API that evaluates product proposals before engineering begins. Start with one structured review endpoint, measure real inference cost and repeat buyer behavior, and stop investing if unrelated buyers do not return after the first validation window.",
"constraints": [
"Do not invent traction or external market facts"
],
"proposalType": "api-service",
"productContext": "An x402-paid sibling endpoint to an existing launch-copy review service.",
"targetAudience": "Founders, product teams, developers, and autonomous agents.",
"desiredDecision": "Decide whether to green-light the bounded MVP implementation."
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"meta": {
"model": "openai/gpt-5.6-terra",
"cached": false,
"engine": "openai-compatible",
"generatedAt": "2026-08-13T12:00:00.000Z"
},
"report": {
"risks": [],
"score": 70,
"verdict": "revise",
"scopeCuts": [],
"strengths": [],
"coreThesis": "Validate demand before expanding the build.",
"assumptions": [],
"killCriteria": [],
"inputIntegrity": {
"status": "clean",
"evidence": []
},
"recommendation": "Revise around one measurable validation step.",
"validationPlan": [],
"requiredChanges": [
"Define the cheapest demand test."
],
"executiveSummary": "The proposal needs a smaller validation step.",
"economicsAssessment": {
"rating": "unclear",
"summary": "Measure real cost and demand.",
"keyQuestion": null
},
"optionalImprovements": [],
"feasibilityAssessment": {
"rating": "credible",
"summary": "A bounded test is feasible.",
"keyQuestion": null
},
"recommendedBuildSequence": [],
"differentiationAssessment": {
"rating": "unclear",
"summary": "Differentiation still needs evidence.",
"keyQuestion": null
}
},
"requestId": "example"
}
}
}Cite this page
This endpoint is delisted: the page is frozen at its last observation and its live URL is the stable one. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "proposal check on launchcheck-x402.fly.dev". https://tollindex.com/e/launchcheck-x402-fly-dev-v1-proposal-check-f6752c. Accessed [access date].
BibTeX
@misc{toll-e-launchcheck-x402-fly-dev-v1-proposal-check-f6752c-2026-10-13,
author = {TOLL},
title = {proposal check on launchcheck-x402.fly.dev},
howpublished = {\url{https://tollindex.com/e/launchcheck-x402-fly-dev-v1-proposal-check-f6752c}},
year = {2026},
month = {10},
note = {Frozen at its last observation, 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.