Get Your API Key

Prompterjack supports multiple AI providers. Pick one and follow the guide below.

Quick Start

Groq and Gemini both offer free API keys — great for trying Prompterjack without any cost. For the best quality output, Claude (Anthropic) is recommended but requires purchasing API credits from Anthropic.

FREEGroq

Groq provides very fast inference with a generous free tier. Uses Llama 3.3 70B.

  1. Go to console.groq.com/keys
  2. Sign up or log in (Google/GitHub auth available)
  3. Click "Create API Key"
  4. Name it (e.g. "Prompterjack") and copy the key

Your key will look like: gsk_...

FREEGemini (Google)

Google's Gemini offers a free tier through AI Studio. Uses Gemini 1.5 Flash.

  1. Go to aistudio.google.com/apikey
  2. Sign in with your Google account
  3. Click "Create API Key"
  4. Select a Google Cloud project (or create one) and copy the key

Your key will look like: AIza...

PAIDClaude (Anthropic)— Recommended for best quality

Claude produces the highest quality prompts. Requires purchasing API credits from Anthropic.

  1. Go to console.anthropic.com
  2. Create an account and add a payment method under Billing
  3. Navigate to Settings → API Keys
  4. Click "Create Key", name it, and copy it

Your key will look like: sk-ant-api03-...

Security & Privacy

  • • Your API key is stored only in your browser's local storage
  • • Keys are sent through our proxy server to avoid CORS issues but are never logged or stored
  • • You can clear your key at any time from Profile → API Keys

Troubleshooting

"Failed to fetch" error?

This usually means the API proxy is temporarily unavailable. Try again in a moment.

Key not working?

Make sure you copied the full key and that you're using the correct provider tab under Profile → API Keys. Groq keys start with gsk_, Gemini keys start with AIza, Claude keys start with sk-ant.

Quota exceeded?

Free tiers have rate limits. If you hit a quota error, wait a minute and try again, or switch to a different provider.