Sato Hub
x402 merchant

sellat.app

Developer tools API on Base, paid per request with x402.

  • Endpoints2
  • Price per requestfrom $0.01
  • Outside payers · 7d1
  • Answer 402n/a

Overview

as of 2026-10-19
Seller wallet
0xec7c3bbf17352af760f2d89b0170477dac5ae25d
Chains
Base
Hosts
sellat.app
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools2
First seen
2026-10-19 · last seen 2026-10-19

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://sellat.app/api/v2/proofs

    Sellat proof of existence for one SHA-256: anchored on Polygon in the next fast batch (minutes) and attested on Bitcoin through OpenTimestamps; certificate, proof.json and evidence ZIP, verifiable without Sellat.

    BaseDeveloper tools

    $0.01/ request

    2026-10-18

  • https://sellat.app/api/v2/proofs/:id/qualified

    eIDAS qualified electronic timestamp (RFC 3161) from an EU qualified trust service provider, on a Sellat proof of yours. Use when the date must hold before an EU court or authority: it carries the legal presumption of a…

    BaseDeveloper tools

    $0.90/ request

    2026-10-18

Evidence

as of 2026-10-19

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

4 x402-style payments from 1 distinct payer, $1.42 USDC in the last 7 days (Base, exact read)

window ended 2026-10-19

Payments
4
Payers
1
USDC
1.42

All USDC received at this payout address: $1.42 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-19, 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
Base0xec7c3bbf17352af760f2d89b0170477dac5ae25d2unknown4 x402-style payments from 1 distinct payer, $1.42 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
$0.01
per request, as registeredas of
Median
$0.455
per request, as registeredas of
Highest
$0.90
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 0xec7c3b…5ae25d 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 2026-10-19. Appearing here is not an endorsement. Check an endpoint with the doctor.