Sato Hub
x402 merchant

khotem.com

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

  • Endpoints16
  • Price per requestfrom $0.02
  • Outside payers · 7d1
  • Answer 402n/a

Overview

as of 2026-10-08
Seller wallet
0xe61c2359f1539b15f092aadbac332cf033767aec
Chains
BasePolygon
Hosts
khotem.com
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools16
First seen
2026-10-07 · last seen 2026-10-08

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.
16 registered

  • https://khotem.com/api/attest

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.02/ request

    2026-10-08

  • https://khotem.com/api/seal

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.05/ request

    2026-10-08

  • https://khotem.com/api/verify

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.05/ request

    2026-10-08

  • https://khotem.com/api/doc/15

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.10/ request

    2026-10-08

  • https://khotem.com/api/doc/16

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.10/ request

    2026-10-08

  • https://khotem.com/api/doc/17

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.10/ request

    2026-10-08

  • https://khotem.com/api/audit

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.15/ request

    2026-10-08

  • https://khotem.com/api/thread

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    BaseDeveloper tools

    $0.25/ request

    2026-10-08

  • https://khotem.com/api/attest

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/audit

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/doc/15

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/doc/16

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/doc/17

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/seal

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/thread

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

  • https://khotem.com/api/verify

    KHOTEM is a cryptographic witness for AI agents: seal (SHA-256 commitments), attest, verify, timestamp and audit, plus three paid operational-law documents for agent builders. x402 v2 with EIP-712-ready accepts on Base,…

    PolygonDeveloper tools

    n/a/ request

    2026-10-08

Evidence

as of 2026-10-08

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

10 x402-style payments from 1 distinct payer, $0.23 USDC in the last 7 days (Base, exact read)

window ended 2026-10-08

Payments
10
Payers
1
USDC
0.23

All USDC received at this payout address: $0.23 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-08, 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
Base0xe61c2359f1539b15f092aadbac332cf033767aec8unknown10 x402-style payments from 1 distinct payer, $0.23 USDC in the last 7 days (Base, exact read)
Polygon0xe61c2359f1539b15f092aadbac332cf033767aec8unknownunknown. not measured on this chain yet

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
$0.02
per request, as registeredas of
Highest
$0.25
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 0xe61c23…767aec 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: x402-list.com (CC BY 4.0). Data as of 2026-10-08. Appearing here is not an endorsement. Check an endpoint with the doctor.