The key means the AI answers to you.
You bring your own model key. We never see it, never store it server-side, never pay for your usage. A couple of minutes from here, you own the thing that reads your resume.
Two steps, about two minutes: pick a console below, create a key in it, and paste it into Settings.
Step 1 Pick a console
Open one provider's console
You only need one. Any of the four works the same on The Index. Open its site in a new tab, then come back for step 2.
- Anthropic sk-ant-… Where we started. console.anthropic.com
- OpenAI sk-… Strong writing. Most people already have the account. platform.openai.com
- Kimi sk-… Strong writing at low cost. platform.moonshot.ai
- DeepSeek sk-… The lowest cost of any provider here. platform.deepseek.com
Step 2 In that console
Create the key and paste it in
The same five steps, whichever console you opened. Two minutes, start to finish.
- Sign in, or make the account.
- Open the API keys page.
- Create a key.
- Set a monthly spend cap.
- Paste it into Settings.
Treat the key like a password. Delete it in Settings anytime, or revoke it at the provider if you lose track of it.
One key, pasted once. Everything the account writes for you runs in your browser, on your terms.