passlisted in Coinbase#63 by calls of 378 on this host
0.02 USDC
per call, as the listing declares it on solana:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 2
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-25 20:47 UTC
- First observed by TOLLderived
- 2026-09-24
- Pricederived
- 0.02 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 2 times across 26 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.
kb building an ai agent that pays with x402 shares saylorinnovations.com with 377 other listed endpoints and is tied 63rd by calls with 296 others.
kb building an ai agent that pays with x402 declares an input block that names no parameters.
The declared response carries c, t, id and body.
kb building an ai agent that pays with x402 drew 2 calls from one payer in the trailing 30 days.
The last call to kb building an ai agent that pays with x402 came 6 days before the snapshot, 2026-09-25.
Per call, kb building an ai agent that pays with x402 declares 0.02 USDC on Solana.
6 payment options span Solana, Base, Polygon and Arbitrum, to 2 different wallets.
kb building an ai agent that pays with x402 is a GET endpoint at saylorinnovations.com, listed in the Coinbase registry and filed by TOLL under inference.
kb building an ai agent that pays with x402 answered the sweep of 2026-10-01 with a valid 402, as at every sweep since 2026-09-25.
Closest in price to kb building an ai agent that pays with x402 within inference: chat encrypted at x402-api.aubr.ai and branches summary at api.onesource.io.
kb building an ai agent that pays with x402 is priced above 80% of comparable listings in inference.
For 1 of the options on kb building an ai agent that pays with x402, TOLL has no verified decimals and shows the raw amount.
The wallet paid by kb building an ai agent that pays with x402 is the payee of 397 endpoints on one host.
The seller's own tags are x402, ai-agents, micropayments and solana.
The price of kb building an ai agent that pays with x402 is declared by 146 other listings in inference too.
the payment options, as of 2026-10-02 05:34 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | solana: | USDC | 0.02 USDC | exact | 7LSjfrJf…vXacy7 |
| Coinbase | solana: | USDT | 0.02 USDT | exact | 7LSjfrJf…vXacy7 |
| Coinbase | eip155: | USDC | 0.02 USDC | exact | 0xA2A8dF…9fc8aa |
| Coinbase | eip155: | USDC | 0.02 USDC | exact | 0xA2A8dF…9fc8aa |
| Coinbase | eip155: | USDC | 0.02 USDC | exact | 0xA2A8dF…9fc8aa |
| Coinbase | solana: | So111111…111112 | 158302 smallest units, decimals unknown | exact | 7LSjfrJf…vXacy7 |
the checks, as of 2026-10-01 06:35 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-01 06:35 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 05:52 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 18:13 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-28 04:06 UTC | pass | 0 | daily-2026-09-28 |
| 2026-09-25 19:48 UTC | pass | 0 | daily-2026-09-25 |
| 2026-09-25 19:15 UTC | pass | 0 | new-after-daily-2026-09-24 |
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 2026-09-25 20:47 UTC · method · live
The input and output block
{
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"c": "AI & Agents",
"t": "Building an AI Agent That Pays for Data: A Practical x402 Walkthrough",
"id": "building-an-ai-agent-that-pays-with-x402",
"body": "A working implementation walkthrough for an AI agent consuming an x402-gated API: reading the 402 response and its accepts array, choosing a payment method (facilitator-settled transaction vs self-submitted reference), building the payment, and handling the settlement-lag retry loop — using this site’s own live Watchdog endpoints as the worked example."
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-02 05:34 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "kb building an ai agent that pays with x402 on saylorinnovations.com", snapshot of 2026-10-02 05:34 UTC. https://tollindex.com/e/saylorinnovations-com-api-kb-building-an-ai-agent-that-pays-with-x402-15bbad/at/2026-10-02T05-34Z. Accessed [access date].
BibTeX
@misc{toll-e-saylorinnovations-com-api-kb-building-an-ai-agent-that-pays-with-x402-15bbad-2026-10-02T05-34Z,
author = {TOLL},
title = {kb building an ai agent that pays with x402 on saylorinnovations.com},
howpublished = {\url{https://tollindex.com/e/saylorinnovations-com-api-kb-building-an-ai-agent-that-pays-with-x402-15bbad/at/2026-10-02T05-34Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-02 05:34 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.