failabsent from every registry#5 by calls of 15 on this host
0.002 USDC
per call, as the listing declares it on eip155:
Compare with anotherEvery figure as JSONCite this page
the price, as of 2026-10-06 00:02 UTC · method
- Validation state
- fail
- Uptime, 7 / 30 / 90 days
- — / 60% / 60%
- Calls, trailing 30 days
- 2
- Unique payers, trailing 30 days
- 2
- Last called
- 2026-10-05 08:51 UTC
- First observed by TOLLderived
- 2026-10-02
- Pricederived
- 0.002 USDC
- Networks
- 1
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 2 times across 12 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.
On 2026-10-05 it did not answer at all; TOLL records that as a failure.
TOLL files x402 challenge decode under inference: a POST endpoint on api.zfinia.com, listed in neither registry at the last pull.
A call to x402 challenge decode costs 0.002 USDC on Base, as declared.
Its declared inputs are a json body with the field payload.
x402 challenge decode returns json; the example shows accepts, version, resource, warnings, request_id, service_id and 2 others.
The registry's counters give x402 challenge decode 2 calls and 2 unique payers over 30 days, every call from a different payer.
x402 challenge decode was last called 8 days before the snapshot.
Of api.zfinia.com's 15 listings, x402 challenge decode ranks tied 5th by calls with 2 others.
x402 challenge decode takes 7% of the calls counted across api.zfinia.com.
Few comparable listings in inference ask less: 4%.
x402 challenge decode sits nearest in price to chat completions (blockrun.ai) and operations submit (agents.chain.link) among listings in inference.
The wallet paid by x402 challenge decode is the payee of 179 endpoints across 5 hosts.
The seller's tags on x402 challenge decode are x402, payment challenge, agent commerce and machine payments.
x402 challenge decode was missing from the Coinbase registry at the pull of 2026-10-06, confirmed at the pull of 2026-10-06; that is registry presence, not liveness.
The price of x402 challenge decode is declared by 197 other listings in inference 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.
the payment options, as of 2026-10-06 00:02 UTC · method
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0x25e824…6a9608 |
the checks, as of 2026-10-05 08:35 UTC · methodendpoint answered HTTP none
endpoint_reachable· the endpoint answered at all
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-05 08:35 UTC | fail | 1 | daily-2026-10-05 |
| 2026-10-04 10:59 UTC | pass | 0 | daily-2026-10-04 |
| 2026-10-03 05:48 UTC | fail | 1 | daily-2026-10-03 |
| 2026-10-02 15:01 UTC | pass | 0 | daily-2026-10-02 |
| 2026-10-02 12:41 UTC | pass | 0 | new-after-daily-2026-10-01 |
Presence in a registry, not liveness of the service (method). Newest first.
- absence from Coinbase confirmed, rule v1
- absent from Coinbase at this pull
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-10-05 08:51 UTC · method
The input and output block
{
"input": {
"body": {
"payload": {
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"x402Version": 2
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"pay_to": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"scheme": "exact",
"network": "eip155:8453"
}
],
"version": 2,
"resource": null,
"warnings": [
"INPUT_SCHEMA_MISSING",
"OUTPUT_SCHEMA_MISSING"
],
"request_id": "example-request",
"service_id": "x402_challenge_decode",
"payment_sent": false,
"declared_input": null,
"declared_output": null,
"service_version": "1.0.0"
}
}
}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 challenge decode on api.zfinia.com". https://tollindex.com/e/api-zfinia-com-x402-v1-x402-challenge-decode-6b981e. Accessed [access date].
BibTeX
@misc{toll-e-api-zfinia-com-x402-v1-x402-challenge-decode-6b981e-2026-10-13,
author = {TOLL},
title = {x402 challenge decode on api.zfinia.com},
howpublished = {\url{https://tollindex.com/e/api-zfinia-com-x402-v1-x402-challenge-decode-6b981e}},
year = {2026},
month = {10},
note = {Frozen at its last observation, 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.