x402 payee drift report derived

api.zfinia.comInference derived

POST https://api.zfinia.com/x402/v1/x402-payee-drift-report

failabsent from every registry#7 by calls of 15 on this host

0.14 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 2026-10-04 21:22 UTC · method

Validation state: fail; as of 2026-10-04 13:42 UTC · method · sweep daily-2026-10-04
Uptime, 7 / 30 / 90 days: — / 50% / 50%; as of 2026-10-04 13:42 UTC · method · 0 of 0 in 7d, 1 of 2 in 30d, 1 of 2 in 90d
Calls, trailing 30 days: 1; as of 2026-10-04 21:22 UTC · method
Unique payers, trailing 30 days: 1; as of 2026-10-04 21:22 UTC · method
Last called: 2026-10-04 08:07 UTC; as of 2026-10-04 21:22 UTC · method
First observed by TOLLderived: 2026-10-04; as of 2026-10-04 12:19 UTC · method · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.14 USDC; as of 2026-10-04 21:22 UTC · method · on eip155:8453
Networks: 1; as of 2026-10-04 21:22 UTC · method

Counters

2 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 8,525 endpoints in Inference 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: 3,710 in the category are counted higher and 4,814 lower.

No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 2 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

On 2026-10-04 it answered HTTP 429 rather than 402; TOLL records that as a failure.

At api.zfinia.com, x402 payee drift report takes POST requests, is listed in neither registry at the last pull, and falls under inference by TOLL's rules.

x402 payee drift report is priced at 0.14 USDC on Base.

Callers of x402 payee drift report supply a json body with the fields after, before and expected_payees.

x402 payee drift report returns json; the example shows limits, passed, payees, stable, complete, findings and 2 others.

x402 payee drift report drew a single call from a single payer in the trailing 30 days.

The last call to x402 payee drift report came 9 days before the snapshot, 2026-10-04.

Among the 15 endpoints on api.zfinia.com, x402 payee drift report is tied 7th by calls with 9 others.

x402 payee drift report takes 4% of the calls counted across api.zfinia.com.

Most comparable listings in inference, 98%, ask less.

x402 payee drift report sits nearest in price to agent call (api.losbeto.xyz) and llm pro (agent402.tools) among listings in inference.

The wallet paid by x402 payee drift report is the payee of 179 endpoints across 5 hosts.

The seller's tags on x402 payee drift report are x402, machine payments, payee drift and integrity.

x402 payee drift report was missing from the Coinbase registry at the pull of 2026-10-05, confirmed at the pull of 2026-10-05; that is registry presence, not liveness.

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 2026-10-04 21:22 UTC · method

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.14 USDC	exact	0x25e824…6a9608

Preflight checks at the last sweep

the checks, as of 2026-10-04 13:42 UTC · methodendpoint answered HTTP 429

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, UTC	state	failed checks	sweep
2026-10-04 13:42 UTC	fail	1	daily-2026-10-04
2026-10-04 12:45 UTC	pass	0	new-after-daily-2026-10-04

Registry presence

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

2026-10-05 14:34 UTCabsence from Coinbase confirmed, rule v1
2026-10-05 05:36 UTCabsent from Coinbase at this pull
2026-10-04 12:19 UTClisted in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-10-04 08:07 UTC · method

The input and output block

{
  "input": {
    "body": {
      "after": [
        {
          "url": "https://api.merchant.test/v1/score",
          "challenge": {
            "accepts": [
              {
                "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
                "payTo": "0xa1b2c31111111111111111111111111111119f8e",
                "amount": "5000",
                "scheme": "exact",
                "network": "eip155:8453"
              }
            ],
            "resource": {
              "url": "https://api.merchant.test/v1/score",
              "mimeType": "application/json",
              "description": "Paid resource at https://api.merchant.test/v1/score"
            },
            "extensions": {
              "bazaar": {
                "schema": {
                  "properties": {
                    "input": {
                      "type": "object"
                    },
                    "output": {
                      "type": "object"
                    }
                  }
                }
              }
            },
            "x402Version": 2
          }
        },
        {
          "url": "https://api.merchant.test/v1/enrich",
          "challenge": {
            "accepts": [
              {
                "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
                "payTo": "0xa1b2c30000000000000000000000000000009f8e",
                "amount": "12000",
                "scheme": "exact",
                "network": "eip155:8453"
              }
            ],
            "resource": {
              "url": "https://api.merchant.test/v1/enrich",
              "mimeType": "application/json",
              "description": "Paid resource at https://api.merchant.test/v1/enrich"
            },
            "extensions": {
              "bazaar": {
                "schema": {
                  "properties": {
                    "input": {
                      "type": "object"
                    },
                    "output": {
                      "type": "object"
                    }
                  }
                }
              }
            },
            "x402Version": 2
          }
        }
      ],
      "before": [
        {
          "url": "https://api.merchant.test/v1/score",
          "challenge": {
            "accepts": [
              {
                "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
                "payTo": "0xa1b2c30000000000000000000000000000009f8e",
                "amount": "5000",
                "scheme": "exact",
                "network": "eip155:8453"
              }
            ],
            "resource": {
              "url": "https://api.merchant.test/v1/score",
              "mimeType": "application/json",
              "description": "Paid resource at https://api.merchant.test/v1/score"
            },
            "extensions": {
              "bazaar": {
                "schema": {
                  "properties": {
                    "input": {
                      "type": "object"
                    },
                    "output": {
                      "type": "object"
                    }
                  }
                }
              }
            },
            "x402Version": 2
          }
        },
        {
          "url": "https://api.merchant.test/v1/enrich",
          "challenge": {
            "accepts": [
              {
                "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
                "payTo": "0xa1b2c30000000000000000000000000000009f8e",
                "amount": "12000",
                "scheme": "exact",
                "network": "eip155:8453"
              }
            ],
            "resource": {
              "url": "https://api.merchant.test/v1/enrich",
              "mimeType": "application/json",
              "description": "Paid resource at https://api.merchant.test/v1/enrich"
            },
            "extensions": {
              "bazaar": {
                "schema": {
                  "properties": {
                    "input": {
                      "type": "object"
                    },
                    "output": {
                      "type": "object"
                    }
                  }
                }
              }
            },
            "x402Version": 2
          }
        }
      ],
      "expected_payees": [
        "0xa1b2c30000000000000000000000000000009f8e"
      ]
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "limits": {
        "maxAssets": 100,
        "maxAccepts": 20,
        "maxFindings": 500,
        "maxNetworks": 50,
        "maxResources": 500,
        "maxChallenges": 200
      },
      "passed": false,
      "payees": [
        {
          "after": [
            "0xa1b2c30000000000000000000000000000009f8e"
          ],
          "before": [
            "0xa1b2c30000000000000000000000000000009f8e"
          ],
          "changed": false,
          "resource": "https://api.merchant.test/v1/enrich"
        },
        {
          "after": [
            "0xa1b2c31111111111111111111111111111119f8e"
          ],
          "before": [
            "0xa1b2c30000000000000000000000000000009f8e"
          ],
          "changed": true,
          "resource": "https://api.merchant.test/v1/score"
        }
      ],
      "stable": false,
      "complete": true,
      "findings": [
        {
          "code": "PAYEE_CHANGED",
          "detail": "https://api.merchant.test/v1/score now pays to 0xa1b2c31111111111111111111111111111119f8e where it paid to 0xa1b2c30000000000000000000000000000009f8e. Confirm this change is expected before paying; a ...",
          "resource": "https://api.merchant.test/v1/score"
        },
        {
          "code": "PAYEE_RESEMBLES_PREVIOUS",
          "detail": "https://api.merchant.test/v1/score: the new payee shares its first six and last four characters with the previous one, which passes a casual comparison and is a different account.",
          "resource": "https://api.merchant.test/v1/score"
        },
        {
          "code": "UNEXPECTED_PAYEE",
          "detail": "https://api.merchant.test/v1/score pays to an address that is not among the 1 expected. Confirm it before paying.",
          "resource": "https://api.merchant.test/v1/score"
        }
      ],
      "request_id": "example-request",
      "service_id": "x402_payee_drift_report",
      "assumptions": [
        "Nothing is fetched and nothing is paid. Both snapshots are challenges the caller captured.",
        "Addresses are compared case-insensitively, because a checksummed and a lowercase form of one address are the same account.",
        "A payee change is reported as a change to confirm, never as an accusation. This cannot know whether a change was authorised."
      ],
      "limitations": [
        "Payee movement between the two snapshots supplied. Who controls an address, and whether a change was legitimate, are outside what a challenge can show.",
        "stable is true only when every challenge decoded and no payee moved or was unexpected."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "not_examined": [],
      "payment_sent": false,
      "changed_count": 1,
      "finding_count": 3,
      "service_version": "1.0.0",
      "findings_by_code": {
        "PAYEE_CHANGED": 1,
        "UNEXPECTED_PAYEE": 1,
        "PAYEE_RESEMBLES_PREVIOUS": 1
      },
      "after_resource_count": 2,
      "before_resource_count": 2,
      "distinct_payees_after": [
        "0xa1b2c30000000000000000000000000000009f8e",
        "0xa1b2c31111111111111111111111111111119f8e"
      ],
      "compared_resource_count": 2
    }
  }
}

What the listing says

Compare two snapshots of captured challenges and report every change of payee. A payee change is the most consequential thing a challenge can do, because paying the new one sends funds to a different recipient. Specifically flags a new payee sharing its first six and last four characters with the old one, which passes a human comparison and is a different account. Reports a change to confirm, never an accusation. Nothing is paid.

the record, 2026-10-04 08:07 UTC · method

As declared

POST
eip155:8453
USDC
exact

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

Who is paid

0x25e824…6a9608

Takes payment for 179 endpoints on 5 hosts.

Among Inference

counted above0%

of 8,525 that carry counters

cheaper than98%

of 8,876 with a comparable price

9,331 endpoints are in this category.

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

Nearest on price

agent callapi.losbeto.xyz0.1 USDCpass
llm proagent402.tools0.1 USDCpass
locus practitioner readapi.locus.report0.29 USDCpass
profiles searchapi.linkedpanda.com0.3 USDCpass
translateapi.strale.io0.054 USDClegacy v1

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, "x402 payee drift report on api.zfinia.com". https://tollindex.com/e/api-zfinia-com-x402-v1-x402-payee-drift-report-b5d2b2. Accessed [access date].

BibTeX

@misc{toll-e-api-zfinia-com-x402-v1-x402-payee-drift-report-b5d2b2-2026-10-13,
  author = {TOLL},
  title = {x402 payee drift report on api.zfinia.com},
  howpublished = {\url{https://tollindex.com/e/api-zfinia-com-x402-v1-x402-payee-drift-report-b5d2b2}},
  year = {2026},
  month = {10},
  note = {Frozen at its last observation, 2026-10-13 14:08 UTC. Accessed [access date].}
}

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