Why route Cursor through KissAPI
Cursor lets you plug in your own OpenAI-compatible endpoint, which means you don't have to pay Cursor's or Anthropic's full rate. Point Cursor at KissAPI and you get Claude Opus 4.6, Sonnet 4.6 and GPT-5 at up to 80% off, billed per token.
Setup
- Open Cursor Settings → Models.
- Enable a custom OpenAI API key and set the Base URL to
https://api.kissapi.ai/v1. - Paste your KissAPI key.
- Add model ids like
claude-sonnet-4-6orgpt-5and start coding.
curl https://api.kissapi.ai/v1/chat/completions \
-H "Authorization: Bearer $KISSAPI_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"MODEL_ID","messages":[{"role":"user","content":"hi"}]}'Pricing you'll pay
| Model | Input / 1M | Output / 1M |
|---|---|---|
| Claude Opus 4.6 | $15.00 → $3.00 | $75.00 → $15.00 |
| Claude Sonnet 4.6 | $3.00 → $0.60 | $15.00 → $3.00 |
| Claude Haiku 4.5 | $0.80 → $0.16 | $4.00 → $0.80 |
| GPT-5 | $2.50 → $0.50 | $10.00 → $2.00 |
| GPT-5.5 | $7.50 → $1.50 | $30.00 → $6.00 |
Strikethrough = official list price. Green = KissAPI price. No subscription, pay only for tokens you use.
Power Cursor for less
Get a KissAPI key, drop it into Cursor, and start with $1 free credit.
Start Free — $1 creditFAQ
How do I use Claude in Cursor cheaply?
Set Cursor's OpenAI-compatible base URL to https://api.kissapi.ai/v1 and use your KissAPI key. You get the real Claude models at up to 80% off.
Does Cursor work with KissAPI out of the box?
Yes. Cursor supports custom OpenAI-compatible endpoints, so no plugin or patch is needed — just the base URL and key.
What will it cost?
Pay-as-you-go per token. Claude Sonnet 4.6 is $0.60/1M input, Opus 4.6 is $3.00/1M input. New accounts get $1 in free credit.