Sato Hub
x402 merchant

watt.area21.io

AI models API on Base, paid per request with x402.

  • Endpoints2
  • Price per request$0.001
  • Outside payers · 7d1
  • Answer 402n/a

Overview

as of 2026-10-21
Seller wallet
0x7814de543d2a9c607d2c2bf5bef43405f4a5c918
Chains
Base
Hosts
watt.area21.io
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
AI models2
First seen
2026-10-21 · last seen 2026-10-21

What we observed

Paid by 1 outside payer · 7d, observed402 unknown, unknownNot claimed
See the readings

Endpoints

EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
2 registered

  • https://watt.area21.io/v1/chat/completions

    OpenAI-compatible chat completions: Qwen3.5 4B, Qwen3 1.7B and 0.6B on Watt's own fleet. Pay per call in USDC; the price is the messages' tokens plus max_tokens, estimated before it is served.

    BaseAI models

    $0.001/ request

    2026-10-20

  • https://watt.area21.io/v1/embeddings

    OpenAI-compatible embeddings: Qwen3-VL-Embedding-2B (2048 dims), text and images, on Watt's own fleet. Pay per call in USDC; the price is the request's tokens, estimated before it is served.

    BaseAI models

    $0.001/ request

    2026-10-20

Evidence

as of 2026-10-21

Answers HTTP 402

Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

unknown

unknown. We hold no reading for this seller's endpoints.

no reading date

x402-style payments, last 7 days (Base)

x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

1outside payer

3 x402-style payments from 1 distinct payer, $0.00 USDC in the last 7 days (Base, exact read)

window ended 2026-10-21

Payments
3
Payers
1
USDC
0

This window shows the pattern of machine noise (few payers, dust amounts), so it does not count toward the evidence ranking.

All USDC received at this payout address: $0.00 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-21, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0x7814de543d2a9c607d2c2bf5bef43405f4a5c9182unknown3 x402-style payments from 1 distinct payer, $0.00 USDC in the last 7 days (Base, exact read)

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest
$0.001
per request, as registeredas of
Median
$0.001
per request, as registeredas of
Highest
$0.001
per request, as registeredas of

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0x7814de…a5c918 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Data CC-BY-4.0, attribution: data by satohub.ai. Data as of 2026-10-21. Appearing here is not an endorsement. Check an endpoint with the doctor.