passlisted in Coinbase#449 by calls of 599 on this host
0.01 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
- 1
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-13 22:39 UTC
- First observed by TOLLderived
- 2026-09-14
- Pricederived
- 0.01 USDC
- Networks
- 12
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 7 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.
exa answer first appeared in TOLL's pulls on 2026-09-14.
At agent402.tools, exa answer takes POST requests, is listed in the Coinbase registry, and falls under inference by TOLL's rules.
exa answer is priced at 0.01 USDC on Base.
Its declared inputs are a json body with the field query.
exa answer answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-14.
A response from exa answer, as declared, includes query, answer, source, citations, fetchedAt and citationCount.
exa answer accepts payment on Base, Polygon, Arbitrum, Monad and 8 others, 13 options in all, to 4 different wallets.
exa answer shares agent402.tools with 598 other listed endpoints and is tied 449th by calls with 150 others.
exa answer drew a single call from a single payer in the trailing 30 days.
The last call to exa answer came 2 days before the snapshot, 2026-09-13.
Closest in price to exa answer within inference: chat completions at x402.aispace.bot and who gho timeseries at api.hergertsynthora.com.
exa answer is priced above 25% of comparable listings in inference.
591 listed endpoints on one host pay to the same wallet.
For 6 of the options on exa answer, TOLL has no verified decimals and shows the raw amount. exa answer declares exact and upto as payment schemes.
The seller's own tags are web, search, exa and answer.
The price of exa answer is declared by 915 other listings in inference too.
the payment options, as of 2026-09-15 21:20 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 10000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 10000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.011 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | Global Dollar | 10000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 10000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.01 USDC | upto | 0xaBF4FA…e2a9D0 |
| Coinbase | solana: | USDC | 0.01 USDC | exact | J7aN3PLJ…Gv3xwg |
| Coinbase | stellar: | CCW67TSZ…SJMI75 | 100000 smallest units, decimals unknown | exact | GDNJXCKW…FJWWRL |
| Coinbase | algorand: | 31566704 | 10000 smallest units, decimals unknown | exact | C7IIHG7S…OY2XIE |
the checks, as of 2026-09-15 04:44 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 04:44 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 04:57 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-14 04:56 UTC | pass | 0 | new-2026-09-14T04-56-17-031Z |
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 2026-09-13 22:39 UTC · method · live
The input and output block
{
"input": {
"body": {
"query": "What is the x402 payment protocol and who uses it?"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"query": "What is the x402 payment protocol and who uses it?",
"answer": "x402 is an HTTP-native payment protocol that settles stablecoin payments per request ...",
"source": "exa",
"citations": [
{
"url": "https://example.com/x402-explained",
"text": null,
"title": "What is the x402 payment protocol?",
"author": null,
"publishedDate": "2026-08-02T00:00:00.000Z"
}
],
"fetchedAt": "2026-09-13T20:00:00.000Z",
"citationCount": 1
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-09-15 21:20 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "exa answer on agent402.tools", snapshot of 2026-09-15 21:20 UTC. https://tollindex.com/e/agent402-tools-api-exa-answer-50f256/at/2026-09-15T21-20Z. Accessed [access date].
BibTeX
@misc{toll-e-agent402-tools-api-exa-answer-50f256-2026-09-15T21-20Z,
author = {TOLL},
title = {exa answer on agent402.tools},
howpublished = {\url{https://tollindex.com/e/agent402-tools-api-exa-answer-50f256/at/2026-09-15T21-20Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 21:20 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.