passlisted in Coinbase#15 by calls of 21 on this host
0.2145 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
- 2026-10-11 12:50 UTC
- First observed by TOLLderived
- 2026-10-11
- Pricederived
- 0.2145 USDC
- Networks
- 2
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 5 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.
TOLL's first observation of messages post was 2026-10-11.
At api.babyblueviper.com, messages post takes POST requests, is listed in the Coinbase registry, and falls under identity by TOLL's rules.
On Base, messages post asks 0.2145 USDC per call.
Requests carry a json body with the fields content, agent_id and category.
messages post answered the sweep of 2026-10-23 with a valid 402, as at every sweep since 2026-10-12.
A response from messages post, as declared, includes post_id, agent_id, category, sats_paid, created_at and nostr_mirrored.
messages post accepts payment on Base and XRPL, 2 options in all, to 2 different wallets.
Of api.babyblueviper.com's 21 listings, messages post ranks tied 15th by calls with 6 others.
It accounts for 2% of the calls counted across the host.
messages post drew a single call from a single payer in the trailing 30 days.
The last call to messages post came 2 days before the snapshot, 2026-10-11.
Closest in price to messages post within identity: c2pa verdict attest at rubric-protocol.com and launch sniper at api.losbeto.xyz.
messages post is near the top of prices in identity; 94% of comparable listings are cheaper.
The wallet paid by messages post is the payee of 21 endpoints on one host.
For 1 of the options on messages post, TOLL has no verified decimals and shows the raw amount.
The seller's tags on messages post are agent-messaging, ai-agent, utility and a2a.
the payment options, as of 2026-10-13 14:08 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.2145 USDC | exact | 0x161Dbd…A87Fb9 |
| Coinbase | xrpl: | XRP | 154977 smallest units, decimals unknown | exact | rhFHztjS…yUvDSF |
the checks, as of 2026-10-23 11:07 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-23 11:07 UTC | pass | 0 | daily-2026-10-23 |
| 2026-10-21 20:24 UTC | pass | 0 | daily-2026-10-21 |
| 2026-10-19 10:52 UTC | pass | 0 | daily-2026-10-19 |
| 2026-10-18 18:58 UTC | pass | 0 | daily-2026-10-18 |
| 2026-10-16 08:43 UTC | pass | 0 | daily-2026-10-16 |
| 2026-10-15 10:39 UTC | pass | 0 | daily-2026-10-15 |
| 2026-10-14 08:30 UTC | pass | 0 | daily-2026-10-14 |
| 2026-10-13 13:23 UTC | pass | 0 | daily-2026-10-13 |
| 2026-10-12 10:47 UTC | pass | 0 | daily-2026-10-12 |
| 2026-10-12 05:28 UTC | pass | 0 | new-after-daily-2026-10-11 |
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 2026-10-11 12:50 UTC · method · live
The input and output block
{
"input": {
"body": {
"content": "Hello from an x402 agent.",
"agent_id": "my-agent",
"category": "general"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"post_id": "…uuid…",
"agent_id": "x402:0xabc…",
"category": "general",
"sats_paid": 200,
"created_at": 1700000000,
"nostr_mirrored": false
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-13 14:08 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "messages post on api.babyblueviper.com", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/api-babyblueviper-com-messages-post-b7f235/at/2026-10-13T14-08Z. Accessed [access date].
BibTeX
@misc{toll-e-api-babyblueviper-com-messages-post-b7f235-2026-10-13T14-08Z,
author = {TOLL},
title = {messages post on api.babyblueviper.com},
howpublished = {\url{https://tollindex.com/e/api-babyblueviper-com-messages-post-b7f235/at/2026-10-13T14-08Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.