passlisted in Coinbase#1 by calls of 8 on this host
0.02 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
- 2
- Unique payers, trailing 30 days
- 2
- Last called
- 2026-09-15 16:22 UTC
- First observed by TOLLderived
- 2026-09-15
- Pricederived
- 0.02 USDC
- Networks
- 1
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 1 observation, 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 first observed it on 2026-09-15.
sign is a POST endpoint at fractalai.net.co, listed in the Coinbase registry and filed by TOLL under communications.
sign is priced at 0.02 USDC on Base.
Callers of sign supply a json body with the field message.
sign answered the sweep of 2026-09-15 with a valid 402.
The output example is a json object with digest, algorithm, signature and public_key.
Across Base it declares 2 ways to pay, all to one wallet.
sign is one of 8 listed endpoints on fractalai.net.co, tied 1st by calls with 2 others among them.
sign takes 18% of the calls counted across fractalai.net.co.
The registry's counters give sign 2 calls and 2 unique payers over 30 days, every call from a different payer.
sign was last called on the day of the snapshot.
Closest in price to sign within communications: ads networks at api.telemost.io and twitter search at social.gedx402.com.
Among comparable prices in communications, sign sits above 72% of them.
The payee wallet is shared by 8 listings on one host.
Seller tags: signature, post-quantum, ml-dsa-65 and ai-agent.
The price of sign is declared by 21 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 | 0.02 USDC | exact | 0xC13789…39ef4f |
| Coinbase | eip155: | USDC | 0.02 USDC | exact | 0xC13789…39ef4f |
the checks, as of 2026-09-15 17:02 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
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 2026-09-15 16:22 UTC · method · live
The input and output block
{
"input": {
"body": {
"message": "hello agent economy"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"digest": "9f86…",
"algorithm": "ml-dsa-65",
"signature": "BASE64_ML_DSA65_3309B",
"public_key": "BASE64_ML_DSA65_1952B"
}
}
}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, "sign on fractalai.net.co", snapshot of 2026-09-15 21:20 UTC. https://tollindex.com/e/fractalai-net-co-api-x402-sign-fcbfed/at/2026-09-15T21-20Z. Accessed [access date].
BibTeX
@misc{toll-e-fractalai-net-co-api-x402-sign-fcbfed-2026-09-15T21-20Z,
author = {TOLL},
title = {sign on fractalai.net.co},
howpublished = {\url{https://tollindex.com/e/fractalai-net-co-api-x402-sign-fcbfed/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.