Quick setup
Open the kRouter dashboard at http://localhost:20128
Go to Providers → click Serper
Paste your API key, click Save
Test the connection
Use in your IDE
Point any OpenAI-compatible client at kRouter using your local API key.
# Endpoint
http://localhost:20128/v1
# API key (from Dashboard → API Keys)
sk-krouter-XXXX
# Model
serper/<model-id>How Serper billing works with kRouter
Serper is pay-per-token. You bring your own API key and kRouter routes to it, so you keep your own rate limits and billing relationship. kRouter authenticates it via apikey.
Through kRouter, Serper serves web search, exposed on /v1/search so an agent can look things up mid-conversation. Requests reach it through the same local OpenAI-compatible endpoint as every other provider, so switching to or from Serper is a one-line model change in your client rather than a rewrite.
Serper links
Serper FAQ
Is Serper free through kRouter?
Serper is pay-per-token: you bring your own API key and are billed by Serper at their rates. kRouter adds nothing on top and is free and MIT-licensed.
How do I use Serper with Claude Code or Cursor?
Connect Serper in the kRouter dashboard, then point your tool at kRouter's local endpoint (http://localhost:20128/v1) with a kRouter API key. Any OpenAI-compatible client works, and models are addressed as serper/<model>.
What happens when Serper is rate limited?
kRouter detects the limit, parks that account until its real reset time, and fails over to your next connected account or provider — so the request still completes instead of erroring.