MarketingSandbox · bring your own key

Test “Testimonial” 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

Anthropic API key

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

Model

Temperature

Step 3 · Fill the variables

Product Name*

Customer Name*

Benefit*

Before After Str*

Tone Str*

Final prompt (sent to anthropic)

Write a compelling, authentic customer testimonial for a product called "{{product_name}}".
The customer's name is "{{customer_name}}".
The main benefit they received: {{benefit}}
Before/after context: {{before_after_str}}
Tone: {{tone_str}}
Write 2-4 sentences in first person as the customer. Include their name as an attribution at the end (e.g., — Name). Make it sound genuine and specific, not generic.

Output — will stream here

Nothing yet. Fill in variables and click Run.

Prompt slug: testimonial

Prefer copy-paste? Back to the prompt page →