base payment deadline check derived

api.delx.aiMarket data derived

POST https://api.delx.ai/api/v1/x402/base-payment-deadline-check

passlisted in Coinbase#12 by calls of 240 on this host

0.001 USDC

per call, as the listing declares it on eip155:8453

Compare with another Every figure as JSON Cite this page

the price, as of 2026-09-15 16:57 UTC · method · pinnable

Validation state: pass; as of 2026-09-15 04:02 UTC · method · pinnable · sweep daily-2026-09-15
Uptime, 7 / 30 / 90 days: 100% / 100% / 100%; as of 2026-09-15 04:02 UTC · method · pinnable · 5 of 5 in 7d, 5 of 5 in 30d, 5 of 5 in 90d
Calls, trailing 30 days: 2; as of 2026-09-15 16:57 UTC · method · pinnable
Unique payers, trailing 30 days: 1; as of 2026-09-15 16:57 UTC · method · pinnable
Last called: 2026-08-18 19:05 UTC; as of 2026-09-15 16:57 UTC · method · pinnable
First observed by TOLLderived: 2026-09-10; as of 2026-09-10 19:08 UTC · method · pinnable · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.001 USDC; as of 2026-09-15 16:57 UTC · method · pinnable · on eip155:8453
Networks: 2; as of 2026-09-15 16:57 UTC · method · pinnable

Counters

28 observations, 1 of them a change, fewer than the 3 a trace needs

How big is this endpoint among the ones like it?

Calls counted in the trailing thirty days across the 5,172 endpoints in Market data that carry counters, binned on a logarithmic scale because the range runs over five orders of magnitude. The marked bin is this endpoint, at 2: 2,135 in the category are counted higher and 3,036 lower.

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.

In words

base payment deadline check is one of 240 listed endpoints on api.delx.ai, tied 12th by calls with 144 others among them.

base payment deadline check takes a json body with the fields now_epoch, deadline_epoch, maximum_lead_seconds and minimum_lead_seconds.

base payment deadline check returns json; the example shows result, schema, status, evidence and operation.

One payer accounts for all 2 calls to base payment deadline check over 30 days.

Its last counted call came 28 days before the snapshot.

A call to base payment deadline check costs 0.001 USDC on Base, as declared.

base payment deadline check accepts payment on Base and Solana, 3 options in all, to 2 different wallets.

At api.delx.ai, base payment deadline check takes POST requests, is listed in the Coinbase registry, and falls under market data by TOLL's rules.

base payment deadline check answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.

Closest in price to base payment deadline check within market data: crypto news at x402.ottoai.services and send token at topagentx402.vercel.app.

base payment deadline check is the cheapest of 5,260 comparable listings in market data; none asks less.

The wallet paid by base payment deadline check is the payee of 241 endpoints on one host.

Seller tags: base, evm and preflight; seller label: "chain-primitives-local".

The price of base payment deadline check is declared by 533 other listings in market data too.

Payment options as declared

the payment options, as of 2026-09-15 16:57 UTC · method · pinnable

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.001 USDC	exact	0x9f8bd9…5e73A2
Coinbase	eip155:8453	USDC	0.001 USDC	exact	0x9f8bd9…5e73A2
Coinbase	solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	0.001 USDC	exact	28heAMpF…YYsemG

Preflight checks at the last sweep

the checks, as of 2026-09-15 04:02 UTC · method · pinnableendpoint answered HTTP 402

No named check failed.

Validation history, 90 days

Every sweep that observed this endpoint, newest first.

Validation observations over the last 90 days
observed, UTC	state	sweep
2026-09-15 04:02 UTC	pass	daily-2026-09-15
2026-09-14 04:01 UTC	pass	daily-2026-09-14
2026-09-13 04:00 UTC	pass	daily-2026-09-13
2026-09-12 06:15 UTC	pass	daily-2026-09-12
2026-09-11 09:41 UTC	pass	daily-2026-09-11

Registry presence

Presence in a registry, not liveness of the service (method). Newest first.

2026-09-10 19:08 UTClisted in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-08-18 19:05 UTC · method · live

The input and output block

{
  "input": {
    "body": {
      "now_epoch": 1720000000,
      "deadline_epoch": 1720000300,
      "maximum_lead_seconds": 3600,
      "minimum_lead_seconds": 30
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "result": {
        "lead_seconds": 300,
        "within_window": true,
        "maximum_lead_seconds": 3600,
        "minimum_lead_seconds": 30
      },
      "schema": "delx/util-base-payment-deadline-check/v1",
      "status": "pass",
      "evidence": {
        "retained": false,
        "input_sha256": "59c678732bd73042e4f51cbf240f3f49ced22b5675207daf3f54360d261c4acb",
        "external_calls": 0
      },
      "operation": "evm_preflight:base_payment_deadline_check"
    }
  }
}

What the listing says

Base Payment Deadline Check: Base Payment Deadline Check checks a Base payment deadline against minimum and maximum lead time from bounded caller-supplied values without an external provider. Call Base Payment Deadline Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Payment Deadline Check as versioned determ…

the record, 2026-08-18 19:05 UTC · method · pinnable

As declared

Every tag is a field on the listing, not a keyword TOLL assigned.

Who is paid

0x9f8bd9…5e73A2

Takes payment for 241 endpoints on 1 host.

Among Market data

counted above39%

of 5,172 that carry counters

cheaper than0%

of 5,260 with a comparable price

5,316 endpoints are in this category. 533 declare exactly this price.

the comparison, 2026-09-15 16:57 UTC · method · live

Nearest on price

chain block numberapi.onesource.io0.001 USDCpass
recipient api offersapi.loyalspark.online0.001 USDCpass
v6 1 quote3route.agents.bakingbad.dev0.001 USDCfail
crypto newsx402.ottoai.services0.001 USDCpass
send tokentopagentx402.vercel.app0.001 USDCpass

Same category, nearest declared price, one per payee wallet (method). the list, 2026-09-15 16:57 UTC · method · live

Elsewhere in the record

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, "base payment deadline check on api.delx.ai", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/api-delx-ai-api-v1-x402-base-payment-deadline-check-1515a2/at/2026-09-15T16-57Z. Accessed [access date].

BibTeX

@misc{toll-e-api-delx-ai-api-v1-x402-base-payment-deadline-check-1515a2-2026-09-15T16-57Z,
  author = {TOLL},
  title = {base payment deadline check on api.delx.ai},
  howpublished = {\url{https://tollindex.com/e/api-delx-ai-api-v1-x402-base-payment-deadline-check-1515a2/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].}
}

Reports and replies about this endpoint

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Report an error about base payment deadline check, or reply as the named seller