TOLL

What software pays for, recorded every six hours.

Snapshot
2026-10-13 14:08 UTC
Sweep
daily-2026-10-19 · finished 2026-10-19 12:59 UTC
Listed
32,435

certify derived

api.s2ar.devIdentityderived

GET https://api.s2ar.dev/x402/v1/certify

faillisted in Coinbase#2 by calls of 9 on this host

0.01 USDC

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

Compare with anotherEvery figure as JSONCite this page

the price, as of 2026-10-13 14:08 UTC · method · pinnable

Validation state
fail
as of 2026-10-19 09:55 UTC · method · pinnable · sweep daily-2026-10-19
Uptime, 7 / 30 / 90 days
50% / 70% / 70%
as of 2026-10-19 09:55 UTC · method · pinnable · 3 of 6 in 7d, 7 of 10 in 30d, 7 of 10 in 90d
Calls, trailing 30 days
1
as of 2026-10-13 14:08 UTC · method · pinnable
Unique payers, trailing 30 days
1
as of 2026-10-13 14:08 UTC · method · pinnable
Last called
2026-10-10 02:43 UTC
as of 2026-10-13 14:08 UTC · method · pinnable
First observed by TOLLderived
2026-10-10
as of 2026-10-10 05:49 UTC · method · pinnable · observation began 10 September 2026; listings that predate it show that date
Pricederived
0.01 USDC
as of 2026-10-13 14:08 UTC · method · pinnable · on eip155:8453
Networks
1
as of 2026-10-13 14:08 UTC · method · pinnable

Counters

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

How big is this endpoint among the ones like it?

1 call100,000this endpoint
Calls counted in the trailing thirty days across the 2,150 endpoints in Identity that carry counters, binned on a logarithmic scale because the range runs over five orders of magnitude. The marked bin is this endpoint, at 1: 1,412 in the category are counted higher and 737 lower.

No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 9 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

At the sweep of 2026-10-19 it answered HTTP 410 rather than 402, so TOLL records it as failing.

certify, a GET endpoint on api.s2ar.dev, appears in the Coinbase registry; TOLL's taxonomy puts it in identity.

Per call, certify declares 0.01 USDC on Base.

certify takes the query parameters probe and image_url.

A response from certify, as declared, includes v, kind, issuer, outcome, receipt, verdict and 2 others.

certify drew a single call from a single payer in the trailing 30 days.

The last call to certify came 3 days before the snapshot, 2026-10-10.

certify is one of 9 listed endpoints on api.s2ar.dev, tied 2nd by calls with 7 others among them.

certify takes 10% of the calls counted across api.s2ar.dev.

Among comparable prices in identity, certify sits above 34% of them.

certify sits nearest in price to verify job (livecheck.fly.dev) and screening match (api.relaystation.ai) among listings in identity.

The wallet paid by certify is the payee of 9 endpoints on one host.

Seller tags: image, compress, ocr and verify.

TOLL's first observation of certify was 2026-10-10.

Exactly this price appears on 707 other listings in identity.

Payment options as declared

the payment options, as of 2026-10-13 14:08 UTC · method · pinnable

Every payment option declared on this listing
registrynetworkassetamountschemepay to
Coinbaseeip155:8453USDC0.01 USDCexact0x2c4938…1b5452

Preflight checks at the last sweep

the checks, as of 2026-10-19 09:55 UTC · method · pinnableendpoint answered HTTP 410

  • returns_402 · an unauthenticated request gets HTTP 402

Validation history, 90 days

Every sweep that observed this endpoint, newest first.

Validation observations over the last 90 days
observed, UTCstatefailed checkssweep
2026-10-19 09:55 UTCfail1daily-2026-10-19
2026-10-18 11:44 UTCfail1daily-2026-10-18
2026-10-16 07:53 UTCfail1daily-2026-10-16
2026-10-15 09:44 UTCpass0daily-2026-10-15
2026-10-14 07:41 UTCpass0daily-2026-10-14
2026-10-13 12:31 UTCpass0daily-2026-10-13
2026-10-12 09:53 UTCpass0daily-2026-10-12
2026-10-11 08:31 UTCpass0daily-2026-10-11
2026-10-10 16:41 UTCpass0daily-2026-10-10
2026-10-10 06:43 UTCpass0new-after-daily-2026-10-10

Registry presence

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

  1. listed in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-10-10 02:43 UTC · method · live

The input and output block
{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "probe": "ocr",
      "image_url": "https://s2ar.dev/examples/media/invoice.png"
    }
  },
  "output": {
    "type": "json",
    "example": {
      "v": 2,
      "kind": "compression",
      "issuer": "assay",
      "outcome": "pass",
      "receipt": {
        "what": "…",
        "charter": "https://api.s2ar.dev/charter",
        "cost_usd": 0.01,
        "issued_at": "2026-10-10T00:00:00Z",
        "witnesses": [
          "sym"
        ],
        "determinism": "replayable",
        "refund_rule": "failed calls are never charged",
        "evidence_hash": "sha256:94abfed2…"
      },
      "verdict": "isomorphic",
      "charged_usd": 0.01,
      "record_sha256": "924aed0a…"
    }
  }
}
Cite this page

The pinned URL below renders this page from the snapshot of 2026-10-13 14:08 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).

Plain text

TOLL, "certify on api.s2ar.dev", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/api-s2ar-dev-x402-v1-certify-9a3d72/at/2026-10-13T14-08Z. Accessed [access date].

BibTeX

@misc{toll-e-api-s2ar-dev-x402-v1-certify-9a3d72-2026-10-13T14-08Z,
  author = {TOLL},
  title = {certify on api.s2ar.dev},
  howpublished = {\url{https://tollindex.com/e/api-s2ar-dev-x402-v1-certify-9a3d72/at/2026-10-13T14-08Z}},
  year = {2026},
  month = {10},
  note = {Pinned view of the snapshot of 2026-10-13 14:08 UTC. Accessed [access date].}
}

Reports and replies about this endpoint

None yet. Anything submitted through the form below is published here with its outcome.

Report an error about certify, or reply as the named seller

No account, no token. Published unedited with its outcome, upheld or not. Do not include personal data.

Kind

Published as typed. Optional.

10 to 4,000 characters.

Verify with the payee wallet (optional, EVM)

Sign this message with the wallet named on the page and paste the signature; it is checked, stored, never published. TOLL reply about endpoint 9a3d724c78020b4afa75a4580f874a5056a945a458e9b8fb513b873710019446 from wallet 0x2c4938626788e8e4fd803bfd1353eca64c1b5452

The 0x address named as payee on this page, 42 characters.

The hex signature of the message above, starting 0x.