passlisted in Coinbase#6 by calls of 20 on this host
0.005 USDC
per call, as the listing declares it on eip155:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 3
- Unique payers, trailing 30 days
- 3
- Last called
- 2026-09-08 08:39 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 USDC
- Networks
- 4
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 28 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.
prediction arb shares x402tap.com with 19 other listed endpoints and is tied 6th by calls with 7 others.
Callers of prediction arb supply the query parameters limit and minDivergencePct.
The declared response carries note, count, query, matches and minDivergencePct.
prediction arb drew 3 calls from 3 unique payers in the trailing 30 days, every call from a different payer.
prediction arb was last called 7 days before the snapshot.
On Base, prediction arb asks 0.005 USDC per call.
prediction arb takes 4% of the calls counted across x402tap.com.
For prediction arb the listing declares 4 accepts on Base, Polygon, Arbitrum and Solana, to 2 different wallets.
prediction arb, a GET endpoint on x402tap.com, appears in the Coinbase registry; TOLL's taxonomy puts it in market data.
prediction arb answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to prediction arb within market data: chain erc20 transfers at api.onesource.io and tick latest at tick.hugen.tokyo.
prediction arb is priced above 24% of comparable listings in market data.
Across market data, 5,172 endpoints carry counters and prediction arb out-counts 59% of them.
20 listed endpoints on one host pay to the same wallet.
The seller's tags on prediction arb are prediction-markets, polymarket, kalshi and arbitrage.
The price of prediction arb is declared by 481 other listings in market data too.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0xB810B5…322C86 |
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0xB810B5…322C86 |
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0xB810B5…322C86 |
| Coinbase | solana: | USDC | 0.005 USDC | exact | 9fqXniDA…QeoWyo |
the checks, as of 2026-09-15 07:00 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 07:00 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 06:27 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 06:17 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 09:13 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 14:45 UTC | pass | 0 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-09-08 08:39 UTC · method · live
The input and output block
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": "5",
"minDivergencePct": "10"
}
},
"output": {
"type": "json",
"example": {
"note": "Matches are found by keyword-overlap similarity...",
"count": 1,
"query": null,
"matches": [
{
"kalshi": {
"title": "Fed cuts rates at September FOMC meeting?",
"ticker": "KXFED-99",
"subTitle": null,
"yesProbability": 0.496
},
"matchScore": 0.5,
"polymarket": {
"slug": "example-market",
"question": "Will the Fed cut rates in September?",
"volume24hr": 45678.9,
"yesProbability": 0.62
},
"cheaperYesOn": "kalshi",
"divergencePct": 12.4
}
],
"minDivergencePct": 10
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-09-15 16:57 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "prediction arb on x402tap.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/x402tap-com-api-prediction-arb-f2caba/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-x402tap-com-api-prediction-arb-f2caba-2026-09-15T16-57Z,
author = {TOLL},
title = {prediction arb on x402tap.com},
howpublished = {\url{https://tollindex.com/e/x402tap-com-api-prediction-arb-f2caba/at/2026-09-15T16-57Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 16:57 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.