Install it and set limits
Allow your website, paste one line of code, and cap how many answers it gives.
Last updated Nov 3, 2026
What it is
The Install tab gives you one script line to paste into your website, and the limits keep usage predictable.
What it's for
The assistant appears on your site in minutes, and never costs more than you allow.
How to use it
- In Install → Allow your website, add the exact address visitors use (with https; add both www and non-www if you use both).
- Copy the snippet and paste it before
</body>— use the WordPress or Shopify tab for exact steps. - Open your site once; Check it turns green when the assistant loads.
- Click Publish at the top.
- In Behavior → Question limits, choose Questions per visitor per day, Questions per network (IP) per day and Answers per month (this assistant), or leave any of them empty for no limit — every answer uses your company's AI credits like Ask Nexa, so the credits are the real limit. Per visitor and per network count every question; per month counts only answered ones. Write the message shown when a limit is reached; it comes with your ways to reach the team.
Tips
- Watch Conversations and Usage in the first week. In Conversations, choose Unanswered to see only the questions it couldn't answer, or answered only in part — each says if the visitor then reached you (for example Visitor contacted you by WhatsApp). Open one and press Answer it: a new Q&A opens with the visitor's question already in it, so the next visitor gets your answer. Delete conversation removes one for good. At the top, Questions it couldn't answer gathers the same question asked in different words into one row, with how often it was asked; Answer it there opens Teach on it, and approving the card answers everyone who asked. If you later take that answer off the assistant, the question comes back. Usage also counts unanswered questions, questions answered this month from Teach, and answers given only in part.
- If Check it says your code ran on an address that isn't in Allow your website (for example www. or http://), press Add it — that is usually why the assistant doesn't show.
Good to know
- The assistant only loads on the addresses you allowed.
- Each answer that uses AI takes credits from your workspace, like a chat question. A reply that couldn't answer is free.
- When a limit is reached, the visitor still gets your limit message and the ways to reach your team.
- Always on, to stop scripts draining your credits: a visitor can ask at most 6 questions a minute, one network 20 a minute, and the assistant answers at most 120 a minute.
- Public key → Replace the public key makes a new key without breaking your site: the old one keeps working for 30 days. Install shows whether a page still uses the old key; put the new line there, then press Retire the old key now (or let the 30 days run out). After that, a page with the old line shows no assistant. One replaced key at a time.
- Conversations older than Keep conversations for (days) (90 unless you change it) are deleted for good every day, with their messages, unanswered questions and contact records.
- Under Signed-in visitors (optional), Create a new secret: Nexa shows it once — copy it to your server, it is never shown again. Creating another one stops the old one at once.
