Sato Hub
x402 merchant

commandguard.grindfree.net

Media API on Base, paid per request with x402.

  • Endpoints8
  • Price per requestfrom $0.001
  • Outside payers · 7dn/a
  • Answer 4021 of 1

Overview

as of 2026-11-11
Seller wallet
0xe4b5827994b7b3cd38f9830d9ecf58b51b77721b
Chains
Base
Hosts
commandguard.grindfree.net, crawlsafe.grindfree.net, docshield.grindfree.net, memoryguard.grindfree.net, promptshield.grindfree.net, toolguard.grindfree.net, wireshield.grindfree.net
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Media2Security2Web data2Developer tools1Other1
First seen
2026-11-07 · last seen 2026-11-11

What we observed

Payments unknown, unknownAnswers 402, observedNot 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://commandguard.grindfree.net/v1/command

    Check an agent-generated shell command (bash/sh/zsh/PowerShell/cmd) before execution. Returns allow|warn|block with rule codes (rm -rf, curl|sh, force-push, credential exfil, cloud deletes). Caller must enforce.

    BaseOther

    $0.001/ request

    2026-11-10

  • https://commandguard.grindfree.net/v1/sql

    Check agent-generated SQL before execution. Returns allow|warn|block with rule codes (DROP/TRUNCATE, DELETE/UPDATE without WHERE or tautology, privilege grants, COPY PROGRAM, file/network access, read_only and protected…

    BaseDeveloper tools

    $0.001/ request

    2026-11-11

  • https://crawlsafe.grindfree.net/v1/check

    Check if a URL may be crawled: RFC 9309 robots.txt for your user agent, plus X-Robots-Tag/meta robots. SSRF-guarded on every redirect hop. Not a malware scanner.

    BaseWeb data

    $0.002/ request

    2026-11-11

  • https://memoryguard.grindfree.net/v1/screen

    Memory-poisoning firewall for AI agents: screen content before it is written to long-term memory. Blocks persistent instructions, sleeper triggers, trust/payment poisoning, injection, hidden Unicode and secrets; flags P…

    BaseSecurity

    $0.002/ request

    2026-11-10

  • https://promptshield.grindfree.net/v1/clean

    Convert HTML to clean LLM-ready text: strips scripts/styles/hidden elements/zero-width chars; returns text + token estimate.

    BaseMedia

    $0.002/ request

    2026-11-08

  • https://toolguard.grindfree.net/v1/evaluate

    Pre-tool-call policy gate for HTTP/MCP outbound actions. Returns allow|review|deny with deterministic reasons. Caller must enforce. Not malware scanning or an exfil guarantee.

    BaseSecurity

    $0.002/ request

    2026-11-10

  • https://wireshield.grindfree.net/v1/scan

    Outbound leak check for AI agent output before it is rendered or sent: zero-click markdown-image exfiltration, data smuggled in URLs/subdomains, invisible Unicode smuggling, system-prompt and canary leaks, secrets and P…

    BaseWeb data

    $0.002/ request

    2026-11-10

  • https://docshield.grindfree.net/v1/scan

    Hidden-instruction scanner for documents before an AI agent reads them: PDF (invisible render mode, white/microscopic/off-page/transparent text, annotations, metadata, JavaScript), DOCX/XLSX/PPTX (vanish/white text, hid…

    BaseMedia

    $0.004/ request

    2026-11-10

Evidence

as of 2026-11-11

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.

1 of 1

1 of 1 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-11-11

x402-style payments, 7-day window (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.

unknown

unknown. the 7-day payments read on Base did not complete (time budget spent at block 53728760 (472000 of 3024001 blocks read))

window ended 2026-11-07

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xe4b5827994b7b3cd38f9830d9ecf58b51b77721b81 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-11-11
unknown. the 7-day payments read on Base did not complete (time budget spent at block 53728760 (472000 of 3024001 blocks 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
$0.002
per request, as registeredas of
Highest
$0.004
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 0xe4b582…77721b 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 2026-11-11. Appearing here is not an endorsement. Check an endpoint with the doctor.