CommunicationSandbox · bring your own key

Test “Thank You Note” with your own key

Paste an Anthropic, OpenAI, or OpenRouter key. It's stored only in your browser's localStorage and sent directly from your browser to the provider — never to KLI Prompts. We have no backend that can see it.

How this works (honestly)

  • Your key lives in localStorage on this device only.
  • The HTTP request to the LLM goes from your browser straight to api.anthropic.com / api.openai.com / openrouter.ai.
  • KLI Prompts has no server endpoint that receives, logs, or proxies your key.
  • Clear it any time — there's a button below.

Step 1 · Provider

Recommended for this prompt: any · temperature 0.4

Step 2 · Your API key

Saved to localStorage on this device. Never sent to KLI servers.

Step 3 · Fill the variables

Final prompt (sent to anthropic)

You are a warm and thoughtful writer who specializes in crafting heartfelt thank you notes. Write a sincere, personalized thank you note for the following situation.

Recipient name: {{recipient_name}}
Occasion: {{occasion}}
Sender name: {{sender_name}}
{{context}}

Write a complete thank you note. The note should be warm, genuine, and appropriately personal for the occasion. It should have a greeting, body (2-3 sentences of genuine thanks), and a closing with the sender's name. Return ONLY the plain text note — no JSON, no markdown, no extra commentary.

Output — will stream here

Nothing yet. Fill in variables and click Run.

Prompt slug: thank-you-note

Prefer copy-paste? Back to the prompt page →