passlisted in Coinbase#69 by calls of 599 on this host
0.002 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
- 5
- Unique payers, trailing 30 days
- 2
- Last called
- 2026-09-14 18:43 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.002 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 2 times 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.
a2a card validate shares agent402.tools with 598 other listed endpoints and is tied 69th by calls with 15 others.
Callers of a2a card validate supply a json body with the field card.
The declared response carries valid, errors, summary and warnings.
a2a card validate drew 5 calls from 2 unique payers in the trailing 30 days.
The last call to a2a card validate came 1 day before the snapshot, 2026-09-14.
The declared price is 0.002 USDC on Base.
a2a card validate accepts payment on Base, Polygon, Arbitrum, Monad and 8 others, 13 options in all, to 4 different wallets.
TOLL files a2a card validate under inference: a POST endpoint on agent402.tools, listed in the Coinbase registry.
a2a card validate answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to a2a card validate within inference: domain check at 402utils.com and chat completions at api.xfuel.app.
a2a card validate is among the cheapest in inference; 7% of comparable listings ask less.
Across inference, 2,414 endpoints carry counters and a2a card validate out-counts 87% of them.
For 6 of the options on a2a card validate, TOLL has no verified decimals and shows the raw amount. a2a card validate declares exact and upto as payment schemes.
591 listed endpoints on one host pay to the same wallet.
The seller's tags on a2a card validate are data, a2a, minia2a and agent2agent.
Exactly this price appears on 106 other listings in inference.
the payment options, as of 2026-09-15 21:20 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 2000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 2000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.003 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | Global Dollar | 2000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 2000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | upto | 0xaBF4FA…e2a9D0 |
| Coinbase | solana: | USDC | 0.002 USDC | exact | J7aN3PLJ…Gv3xwg |
| Coinbase | stellar: | CCW67TSZ…SJMI75 | 20000 smallest units, decimals unknown | exact | GDNJXCKW…FJWWRL |
| Coinbase | algorand: | 31566704 | 2000 smallest units, decimals unknown | exact | C7IIHG7S…OY2XIE |
the checks, as of 2026-09-15 05:31 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 05:31 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 05:05 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 05:01 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 07:17 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 10:58 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 2026-09-14 18:43 UTC · method · live
The input and output block
{
"input": {
"body": {
"card": {
"url": "https://example.com/a2a/v1",
"name": "Sample Weather Agent",
"skills": [
{
"id": "get-forecast",
"name": "Get weather forecast",
"tags": [
"weather",
"forecast"
],
"examples": [
"What is the weather in Paris this week?"
],
"description": "Returns a city's 5-day forecast."
}
],
"version": "1.0.0",
"provider": {
"url": "https://example.com",
"organization": "Example Org"
},
"description": "A sample A2A Agent Card served as a static example for card tooling. This describes a fictional weather agent, not a live A2A endpoint.",
"capabilities": {
"streaming": true,
"pushNotifications": false,
"stateTransitionHistory": false
},
"protocolVersion": "0.3.0",
"defaultInputModes": [
"application/json",
"text/plain"
],
"defaultOutputModes": [
"application/json"
],
"preferredTransport": "JSONRPC"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"valid": true,
"errors": [],
"summary": {
"name": "Sample Weather Agent",
"skillCount": 1
},
"warnings": []
}
}
}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, "a2a card validate on agent402.tools", snapshot of 2026-09-15 21:20 UTC. https://tollindex.com/e/agent402-tools-api-a2a-card-validate-74bf06/at/2026-09-15T21-20Z. Accessed [access date].
BibTeX
@misc{toll-e-agent402-tools-api-a2a-card-validate-74bf06-2026-09-15T21-20Z,
author = {TOLL},
title = {a2a card validate on agent402.tools},
howpublished = {\url{https://tollindex.com/e/agent402-tools-api-a2a-card-validate-74bf06/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.