chain evidence check file derived

api.aiskills402.comMarket data derived

GET https://api.aiskills402.com/v1/skills/chain-evidence-check/file

passlisted in Coinbase#20 by calls of 46 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 2026-10-13 14:08 UTC · method · pinnable

Validation state: pass; as of 2026-10-21 11:09 UTC · method · pinnable · sweep daily-2026-10-21
Uptime, 7 / 30 / 90 days: 100% / 100% / 100%; as of 2026-10-21 11:09 UTC · method · pinnable · 7 of 7 in 7d, 10 of 10 in 30d, 10 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: 2026-10-13 09:33 UTC; as of 2026-10-13 14:08 UTC · method · pinnable
First observed by TOLLderived: 2026-10-13; as of 2026-10-13 14:08 UTC · method · pinnable · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.05 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

1 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 8,872 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 1: 6,656 in the category are counted higher and 2,215 lower.

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

TOLL's first observation of chain evidence check file was 2026-10-13.

chain evidence check file, a GET endpoint on api.aiskills402.com, appears in the Coinbase registry; TOLL's taxonomy puts it in market data.

chain evidence check file is priced at 0.05 USDC on Base.

The listing declares an input block with no named parameters.

chain evidence check file answered the sweep of 2026-10-21 with a valid 402, as at every sweep since 2026-10-13.

A response from chain evidence check file, as declared, includes ok, file, name, skill, sha256, receipt and 2 others.

With 46 endpoints listed on api.aiskills402.com, chain evidence check file is tied 20th by calls with 26 others.

In the trailing 30 days: one call, one payer.

chain evidence check file was last called on the day of the snapshot.

Closest in price to chain evidence check file within market data: smart money netflow at api.nansen.ai and analyze at svm402.com.

chain evidence check file is priced above 86% of comparable listings in market data.

The wallet paid by chain evidence check file is the payee of 55 endpoints across 4 hosts.

Seller tags: agent-skill, chain-evidence-check, blockchain and verification.

The price of chain evidence check file is declared by 581 other listings in market data too.

Payment options as declared

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

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.05 USDC	exact	0x8e3702…9f36f4

Preflight checks at the last sweep

the checks, as of 2026-10-21 11:09 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
2026-10-21 11:09 UTC	pass	daily-2026-10-21
2026-10-20 10:45 UTC	pass	daily-2026-10-20
2026-10-19 08:20 UTC	pass	daily-2026-10-19
2026-10-18 10:20 UTC	pass	daily-2026-10-18
2026-10-17 20:35 UTC	pass	daily-2026-10-17
2026-10-16 06:31 UTC	pass	daily-2026-10-16
2026-10-15 08:16 UTC	pass	daily-2026-10-15
2026-10-14 06:22 UTC	pass	daily-2026-10-14
2026-10-13 14:32 UTC	pass	daily-2026-10-13
2026-10-13 14:16 UTC	pass	new-after-daily-2026-10-13

Registry presence

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

2026-10-13 14:08 UTClisted in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-10-13 09:33 UTC · method · live

The input and output block

{
  "input": {
    "type": "http",
    "method": "GET"
  },
  "output": {
    "type": "json",
    "example": {
      "ok": true,
      "file": {
        "name": "SKILL.md",
        "content": "<the SKILL.md file>",
        "encoding": "utf-8"
      },
      "name": "Chain Evidence Check",
      "skill": "chain-evidence-check",
      "sha256": "<sha256 of SKILL.md>",
      "receipt": {
        "tx": "0x<settlement transaction>",
        "settled": true
      },
      "version": "1.0.0",
      "redownload": {
        "url": "<api>/v1/purchases/<token>",
        "token": "<64 hex chars>"
      }
    }
  }
}

What the listing says

Chain Evidence Check — Judges whether an on-chain observation really proves a claim about a payment, a wallet or an RPC endpoint on an EVM chain, and answers as JSON with a binary verdict, the reason and the one check that would decide. Knows the readings that answer for the wrong thing - a null transaction receipt seconds after settlement, a block explorer that indexes a minute late and a balance view that lags its own transfer list, a public RPC endpoint that refuses receipts with an error or…

the record, 2026-10-13 09:33 UTC · method · pinnable

As declared

GET
eip155:8453
USDC
exact

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

Who is paid

0x8e3702…9f36f4

Takes payment for 55 endpoints on 4 hosts.

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

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, "chain evidence check file on api.aiskills402.com", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/api-aiskills402-com-v1-skills-chain-evidence-check-file-67b779/at/2026-10-13T14-08Z. Accessed [access date].

BibTeX

@misc{toll-e-api-aiskills402-com-v1-skills-chain-evidence-check-file-67b779-2026-10-13T14-08Z,
  author = {TOLL},
  title = {chain evidence check file on api.aiskills402.com},
  howpublished = {\url{https://tollindex.com/e/api-aiskills402-com-v1-skills-chain-evidence-check-file-67b779/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

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