repryntt · ai158z
The repryntt agent
What our agent does on the web, how to recognise it, and how to reach us.
What it is
repryntt is an AI employee that runs on its owner's own computer. When its owner gives it a task, like comparing prices, filling a cart or looking up opening hours, it may open a web browser and do that task the way a person would. It acts for one owner at a time, on tasks that owner asked for. It does not crawl, index or harvest sites.
How to recognise it
Every request from the repryntt agent's own browser is signed with Web Bot Auth (HTTP Message Signatures, RFC 9421, Ed25519):
Signature-Agent: "https://repryntt.com"- Public keys:
https://repryntt.com/.well-known/http-message-signatures-directory - Signatures cover the host and the Signature-Agent header, and expire after one minute.
The browser also identifies itself as an automated browser. It does not hide the automation flag or claim to be a regular desktop browser.
How it behaves
- It takes no for an answer. If a site refuses it (401, 403, 429 or 503), it does not retry that page or try to get around the refusal. It tells its owner the site said no.
- It never solves challenges. CAPTCHAs and “are you human” checks are handed to its owner, a person, or the task stops.
- It never enters secrets. Passwords, one-time codes and card numbers are typed by the owner, never by the agent.
- It asks before it commits. Purchases, sending messages, deleting things and changing account settings wait for the owner’s approval.
- It browses at a person’s pace, one page at a time, not in parallel floods.
- It reports what it did, keeps a signed receipt of its actions for its owner, and cites only pages it actually loaded.
When it uses its owner's own browser
An owner can also let the agent use a tab in their own Chrome, with their own logins, through the repryntt Link extension. That traffic comes from the owner's browser and account, and the owner chose that tab and can stop it at any time. The same rules apply: no challenge solving, no secrets, and approval before anything that commits.
Blocking or limiting it
You can allow, rate-limit or block the repryntt agent by its verified signature in Cloudflare, Akamai, HUMAN, AWS WAF or Vercel, the same way as any verified agent. When it's refused, it stops.
Contact
Questions, problems or abuse reports: hello@ai158z.com. We answer within 2 business days, and we can revoke a key the same day.
Operated by ai158z. Last updated 13 September 2026.