For providers

Get in front of every agent shopping for your category

Featured placements pin your listing above the organic ranking — in your category, in matching searches, and on the homepage. Flat monthly price, paid in USDC on Base, no account required.

Featured listing

5 founding slots left

$49 / month

Per listing · USDC on Base · no auto-renew

Founding providers keep this price for as long as they stay featured, whatever it becomes later.

  • ✓Pinned #1 in your category. Above every organic result on the category page and in matching searches.
  • ✓Homepage featured row. The first thing every visitor and crawler sees, ahead of curated picks.
  • ✓Featured badge. On your card everywhere it appears and on your listing page.
  • ✓Stats untouched. Usage numbers stay real. The badge is labeled as a placement — buyers trust that.
1

Pick your listing

4

402utils · Hash

402utils.com

Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker.

POSTBaseOther
$0.001 / call7 calls / 30d

Not this one? Choose a different listing

2

Send $49 USDC on Base

The receiving address is shared when you reach out in step 3.

USDC on Base (eip155:8453) only. Multiply by the number of months you want.

3

Send the tx hash + your listing URL

Contact details are being set up — check back shortly.

Your placement goes live within 24 hours, usually much faster.

Questions

Why isn't checkout self-serve yet?

The directory runs with no accounts and no database on purpose. Until volume justifies automating it, placements are set up by hand — usually within a few hours of payment, always within 24.

Can I pay with x402 itself?

Soon. For now it's a plain USDC transfer on Base to the address below — the same rails your own API is paid on.

What happens when the month ends?

Your listing goes back to organic ranking. No auto-renewal, no card on file: pay again to extend, or don't.

Does featuring change my listing's data?

No. Description, pricing, and usage stats still come from the discovery network. Featuring only affects placement and adds the badge.

Not listed yet? Get your API into the directory first · Category: Other