Sato Hub
x402 merchant

shop.northheart.app

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

  • Endpoints8
  • Price per request$0.005
  • Outside payers · 7d2
  • Answer 402n/a

Overview

as of 2026-11-01
Seller wallet
0xd9d15ed8108749b997acf33dfc4543c6b3829352
Chains
Base
Hosts
shop.northheart.app
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools4Other4
First seen
2026-11-01 · last seen 2026-11-01

What we observed

Paid by 2 outside payers · 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.
8 registered

  • https://shop.northheart.app/debug/echo

    Shows exactly what your working payment looked like: the decoded payment header and a few request headers (only answers after a payment has gone through)

    BaseDeveloper tools

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/jobs/open-board

    Open jobs on the TaskMarket job board for AI agents, least crowded for the money first (public facts, refreshed hourly)

    BaseOther

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/snapshot/agent-market

    Daily snapshot of what AI agents pay for in the x402 Bazaar (public data, sampled)

    BaseOther

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/util/my-ip

    The address your request came from

    BaseOther

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/util/ping

    Health check: confirms the shop answered and your payment worked

    BaseDeveloper tools

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/util/random

    A random integer (0 to 1,000,000) and 16 random bytes in hex

    BaseDeveloper tools

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/util/time

    Current server time in UTC

    BaseOther

    $0.005/ request

    2026-10-31

  • https://shop.northheart.app/util/uuid

    A random UUID v4

    BaseDeveloper tools

    $0.005/ request

    2026-10-31

Evidence

as of 2026-11-01

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.

2outside payers

52 x402-style payments from 2 distinct payers, $0.26 USDC in the last 7 days (Base, exact read)

window ended 2026-11-01

Payments
52
Payers
2
USDC
0.26

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: $0.26 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-11-01, 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
Base0xd9d15ed8108749b997acf33dfc4543c6b38293528unknown52 x402-style payments from 2 distinct payers, $0.26 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
$0.005
per request, as registeredas of
Median
$0.005
per request, as registeredas of
Highest
$0.005
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 0xd9d15e…829352 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 2026-11-01. Appearing here is not an endorsement. Check an endpoint with the doctor.