passlisted in Coinbase#85 by calls of 599 on this host
0.001 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
- 4
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-08-31 10:26 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.001 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 29 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.
With 599 endpoints listed on agent402.tools, hmac is tied 85th by calls with 251 others.
Requests carry a json body with the fields key, algo and text.
hmac returns json; the example shows hex, algo and base64.
One payer accounts for all 4 calls to hmac over 30 days.
The most recent call was 15 days before the snapshot.
A call to hmac costs 0.001 USDC on Base, as declared.
For hmac the listing declares 13 accepts on Base, Polygon, Arbitrum, Monad and 8 others, to 4 different wallets.
hmac is a POST endpoint at agent402.tools, listed in the Coinbase registry and filed by TOLL under communications.
hmac answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to hmac within communications: email validate at agents.ai-rook.com and users relationship at twitter.surf.cascade.fyi.
hmac is the cheapest of 454 comparable listings in communications; none asks less.
Across communications, 451 endpoints carry counters and hmac out-counts 69% of them.
For 6 of the options on hmac, TOLL has no verified decimals and shows the raw amount. hmac declares exact and upto as payment schemes.
The payee wallet is shared by 591 listings on one host.
Seller tags: encoding, hmac, signature and webhook.
The price of hmac is declared by 30 other listings in communications too.
the payment options, as of 2026-09-15 21:20 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | Global Dollar | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | upto | 0xaBF4FA…e2a9D0 |
| Coinbase | solana: | USDC | 0.001 USDC | exact | J7aN3PLJ…Gv3xwg |
| Coinbase | stellar: | CCW67TSZ…SJMI75 | 10000 smallest units, decimals unknown | exact | GDNJXCKW…FJWWRL |
| Coinbase | algorand: | 31566704 | 1000 smallest units, decimals unknown | exact | C7IIHG7S…OY2XIE |
the checks, as of 2026-09-15 04:27 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 04:27 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 04:23 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 04:22 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 06:38 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 10:09 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 2026-08-31 10:26 UTC · method · live
The input and output block
{
"input": {
"body": {
"key": "secret",
"algo": "sha256",
"text": "payload"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"hex": "f7bc…",
"algo": "sha256",
"base64": "97w…"
}
}
}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, "hmac on agent402.tools", snapshot of 2026-09-15 21:20 UTC. https://tollindex.com/e/agent402-tools-api-hmac-385a0f/at/2026-09-15T21-20Z. Accessed [access date].
BibTeX
@misc{toll-e-agent402-tools-api-hmac-385a0f-2026-09-15T21-20Z,
author = {TOLL},
title = {hmac on agent402.tools},
howpublished = {\url{https://tollindex.com/e/agent402-tools-api-hmac-385a0f/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.