os tools tx preflight derived
www.amnt.ioMarket dataderived
POST https://www.amnt.io/api/os-tools/tx-preflight
failabsent from every registrycounted above 44% of Market data
0.005 USDC
per call, as the listing declares it on eip155:
Compare with anotherEvery figure as JSONCite this page
the price, as of 2026-09-17 11:39 UTC · method
- Validation state
- fail
- Uptime, 7 / 30 / 90 days
- — / 86% / 86%
- Calls, trailing 30 days
- 2
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-13 16:39 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 2 times across 35 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 the sweep of 2026-09-17 it answered HTTP 500 rather than 402, so TOLL records it as failing.
TOLL files os tools tx preflight under market data: a POST endpoint on www.amnt.io, listed in neither registry at the last pull.
os tools tx preflight is priced at 0.005 USDC on Base.
Callers of os tools tx preflight supply a json body with the fields to, data, from, value and chainId.
os tools tx preflight returns json; the example shows action, chainId, reasons, spender, verdict, willRevert and 2 others.
os tools tx preflight drew 2 calls from one payer in the trailing 30 days.
The last call to os tools tx preflight came 12 days before the snapshot, 2026-09-13.
No other listing shares its host.
Among comparable prices in market data, os tools tx preflight sits above 28% of them.
Closest in price to os tools tx preflight within market data: enrich company at win.oneshotagent.com and gas at base-gas-x402-production.up.railway.app.
The wallet paid by os tools tx preflight is the payee of 9 endpoints on one host.
The seller's own tags are security, transaction-simulation, wallet-safety and defi.
os tools tx preflight was missing from the Coinbase registry at the pull of 2026-09-17, confirmed at the pull of 2026-09-17; that is registry presence, not liveness.
The price of os tools tx preflight is declared by 583 other listings in market data too.
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 2026-09-17 11:39 UTC · method
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x98fa9c…70dbc0 |
the checks, as of 2026-09-17 06:35 UTC · methodendpoint answered HTTP 500
returns_402· an unauthenticated request gets HTTP 402
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-17 06:35 UTC | fail | 1 | daily-2026-09-17 |
| 2026-09-16 06:32 UTC | pass | 0 | daily-2026-09-16 |
| 2026-09-15 06:48 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 06:16 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 06:07 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 08:24 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 14:09 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 2026-09-13 16:39 UTC · method
The input and output block
{
"input": {
"body": {
"to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"data": "0x095ea7b3...",
"from": "0xYourWallet...",
"value": "0",
"chainId": "8453"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"action": "<action>",
"chainId": 0,
"reasons": [],
"spender": "<spender>",
"verdict": "<verdict>",
"willRevert": false,
"gasEstimate": "<gasEstimate>",
"revertReason": "<revertReason>",
"spendExposure": "<spendExposure>",
"recipientIsFresh": false,
"recipientIsContract": false
}
}
}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, "os tools tx preflight on www.amnt.io". https://tollindex.com/e/www-amnt-io-api-os-tools-tx-preflight-e2197a. Accessed [access date].
BibTeX
@misc{toll-e-www-amnt-io-api-os-tools-tx-preflight-e2197a-2026-09-25,
author = {TOLL},
title = {os tools tx preflight on www.amnt.io},
howpublished = {\url{https://tollindex.com/e/www-amnt-io-api-os-tools-tx-preflight-e2197a}},
year = {2026},
month = {9},
note = {Frozen at its last observation, 2026-09-25 11:48 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.