Kilo Code is an open-source AI coding agent for VS Code. It combines autonomous editing, planning and architect modes, and a provider catalogue built from the open models.dev listing, where Opper is one of the providers. Pick Opper, paste your key, and you can run it on any of 700+ models on one gateway, with a choice of region.
Kilo CodeoninIn Kilo Code, open Settings → Providers → Show more providers, search for Opper and paste your Opper key. Then pick GPT-5 Nano.
GPT-5 Nano runs on the routes below. Route only to EU providers when your data has to stay in Europe. One route also sells flex processing: the same model at another price, picked per request with service_tier. How service tiers work.
GPT-5 Nano is the fastest, lightest GPT-5 variant, built for summarization, classification, and simple tasks that need minimal latency.
Step-by-step setup for running Kilo Code on each of these models through Opper.
Point Cursor's OpenAI base URL at Opper to run it on any of 700+ models.
OpenAI-compatible
Cline's OpenAI-Compatible provider points straight at Opper's gateway.
OpenAI-compatible
Add Opper as an OpenAI provider in config.yaml and Continue's chat, edit and autocomplete run on any model.
OpenAI-compatible