developer x402 preflight derived

apiacre.comMarket data derived

POST https://apiacre.com/v1/developer/x402-preflight

passabsent from every registry#27 by calls of 41 on this host

0.05 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 2026-10-01 13:10 UTC · method

Validation state: pass; as of 2026-10-01 07:47 UTC · method · sweep daily-2026-10-01
Uptime, 7 / 30 / 90 days: — / 100% / 100%; as of 2026-10-01 07:47 UTC · method · 0 of 0 in 7d, 7 of 7 in 30d, 17 of 17 in 90d
Calls, trailing 30 days: 1; as of 2026-10-01 13:10 UTC · method
Unique payers, trailing 30 days: 1; as of 2026-10-01 13:10 UTC · method
Last called: 2026-09-01 13:12 UTC; as of 2026-10-01 13:10 UTC · method
First observed by TOLLderived: 2026-09-10; as of 2026-09-10 19:08 UTC · method · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.05 USDC; as of 2026-10-01 13:10 UTC · method · on eip155:8453
Networks: 2; as of 2026-10-01 13:10 UTC · method

Counters

87 observations, 3 of them a change, and no more: the endpoint is absent from every registry

How has the volume on this endpoint moved?

Calls counted in the trailing 30 days on this endpoint, at every snapshot since 2026-09-10 and ending at 2026-10-01, the last snapshot that carried it. Each point is a trailing-30-day sum as the registry published it, not a daily rate. The axis is truncated to the range of the data with a break at its foot. The series is final; nothing will be added to it.

In words

apiacre.com lists 41 endpoints; developer x402 preflight is tied 27th by calls with 15 others.

The request to developer x402 preflight is a json body with the fields url, body, method, market_limit and market_query.

A response from developer x402 preflight, as declared, includes data, meta, service, version and request_id.

developer x402 preflight drew a single call from a single payer in the trailing 30 days.

The last call to developer x402 preflight came 42 days before the snapshot, 2026-09-01.

developer x402 preflight is priced at 0.05 USDC on Base.

1% of the host's counted calls go to it.

developer x402 preflight accepts payment on Base and Solana, 2 options in all, to 2 different wallets.

apiacre.com serves developer x402 preflight, a POST endpoint that TOLL places in market data, listed in neither registry at the last pull.

developer x402 preflight answered the sweep of 2026-10-01 with a valid 402, as at every sweep since 2026-09-11.

Closest in price to developer x402 preflight within market data: analyze at svm402.com and q verdict resource at www.ax1.vc.

developer x402 preflight is priced above 86% of comparable listings in market data.

The wallet paid by developer x402 preflight is the payee of 74 endpoints on one host.

The seller's tags on developer x402 preflight are developer, research, x402 and payment.

developer x402 preflight was missing from the Coinbase registry at the pull of 2026-10-01, confirmed at the pull of 2026-10-02; that is registry presence, not liveness.

The price of developer x402 preflight is declared by 581 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.

Payment options as declared

the payment options, as of 2026-10-01 13:10 UTC · method

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.05 USDC	exact	0xa0BFa4…24869B
Coinbase	solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	0.05 USDC	exact	B4CHWQeQ…3HDLan

Preflight checks at the last sweep

the checks, as of 2026-10-01 07:47 UTC · methodendpoint 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
2026-10-01 07:47 UTC	pass	daily-2026-10-01
2026-09-30 07:06 UTC	pass	daily-2026-09-30
2026-09-29 19:23 UTC	pass	daily-2026-09-29
2026-09-28 06:11 UTC	pass	daily-2026-09-28
2026-09-25 20:55 UTC	pass	daily-2026-09-25
2026-09-23 06:30 UTC	pass	daily-2026-09-23
2026-09-22 06:41 UTC	pass	daily-2026-09-22
2026-09-21 07:04 UTC	pass	daily-2026-09-21
2026-09-19 05:05 UTC	pass	daily-2026-09-19
2026-09-18 12:19 UTC	pass	daily-2026-09-18
2026-09-17 05:01 UTC	pass	daily-2026-09-17
2026-09-16 05:01 UTC	pass	daily-2026-09-16
2026-09-15 05:00 UTC	pass	daily-2026-09-15
2026-09-14 04:51 UTC	pass	daily-2026-09-14
2026-09-13 04:50 UTC	pass	daily-2026-09-13
2026-09-12 07:06 UTC	pass	daily-2026-09-12
2026-09-11 10:45 UTC	pass	daily-2026-09-11

Registry presence

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

2026-10-02 05:34 UTCabsence from Coinbase confirmed, rule v1
2026-10-01 22:40 UTCabsent from Coinbase at this pull
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 2026-09-01 13:12 UTC · method

The input and output block

{
  "input": {
    "body": {
      "url": "https://apiacre.com/v1/developer/openapi-audit",
      "body": {
        "format": "json",
        "document": "{\"openapi\":\"3.1.0\",\"info\":{\"title\":\"Example\",\"version\":\"1..."
      },
      "method": "POST",
      "market_limit": 1,
      "market_query": "audit"
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "data": {
        "url": "https://apiacre.com/v1/developer/openapi-audit",
        "grade": "A",
        "score": 100,
        "checks": [
          {
            "id": "http_402",
            "passed": true,
            "message": "Return HTTP 402 before payment.",
            "severity": "high"
          }
        ],
        "method": "POST",
        "payment": {
          "scheme": "exact",
          "network": "eip155:8453",
          "version": 2,
          "acceptsCount": 1
        },
        "finalUrl": "https://apiacre.com/v1/developer/openapi-audit",
        "checkedAt": "2026-08-09T00:00:00+00:00",
        "compliant": true,
        "elapsedMs": 128,
        "statusCode": 402,
        "limitations": "One unpaid target request only; no payment is signed and ...",
        "remediation": [],
        "gradeVersion": "apiacre-x402-preflight/1",
        "directoryEvidence": {
          "market": {
            "query": "audit",
            "status": "ok",
            "returned": 1,
            "totalMatches": 31
          },
          "source": {
            "url": "https://x402-list.com",
            "name": "x402 List",
            "apiUrl": "https://x402-list.com/api/v1/services",
            "documentationUrl": "https://x402-list.com/api"
          },
          "target": {
            "status": "matched",
            "hostname": "apiacre.com",
            "matchCount": 1,
            "matchMethod": "exact_host"
          },
          "version": "apiacre-x402-directory-evidence/1"
        }
      },
      "meta": {
        "cached": false,
        "sources": [],
        "warnings": [],
        "duration_ms": 42,
        "next_actions": []
      },
      "service": "developer.x402-preflight",
      "version": "1",
      "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a"
    }
  }
}

What the listing says

Probe a public endpoint without paying, grade its x402 v2 challenge, check exact-host x402-list presence and traction, and optionally rank licensed market matches with buyer-concentration caveats.

the record, 2026-09-01 13:12 UTC · method

As declared

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

Who is paid

0xa0BFa4…24869B

Takes payment for 74 endpoints on 1 host.

Among Market data

counted above0%

of 8,872 that carry counters

cheaper than86%

of 8,851 with a comparable price

9,140 endpoints are in this category. 581 declare exactly this price.

the comparison, 2026-10-13 14:08 UTC · method · live

Nearest on price

send tokenkeyring-agent.blockchhub.link0.05 USDCpass
distribution balance exchanges relativex402.glassnode.com0.05 USDCpass
smart money netflowapi.nansen.ai0.05 USDCpass
analyzesvm402.com0.03 USDCfail
q verdict resourcewww.ax1.vc0.02 USDCmalformed

Same category, nearest declared price, one per payee wallet (method). the list, 2026-10-13 14:08 UTC · method · live

Elsewhere in the record

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, "developer x402 preflight on apiacre.com". https://tollindex.com/e/apiacre-com-v1-developer-x402-preflight-637071. Accessed [access date].

BibTeX

@misc{toll-e-apiacre-com-v1-developer-x402-preflight-637071-2026-10-13,
  author = {TOLL},
  title = {developer x402 preflight on apiacre.com},
  howpublished = {\url{https://tollindex.com/e/apiacre-com-v1-developer-x402-preflight-637071}},
  year = {2026},
  month = {10},
  note = {Frozen at its last observation, 2026-10-13 14:08 UTC. Accessed [access date].}
}

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