MarketingSandbox · bring your own key

Test “X Thread Writer” 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 an expert Twitter/X thread writer who creates threads that routinely get 500+ retweets. Write a complete Twitter/X thread on the topic below.

Topic: {{params}}
{{params}}
Style: {{params}} — {{style_guide}}
{{params}}

Requirements:
- Write 6–9 tweets total
- Tweet 1 is the HOOK: opens a loop, is bold or surprising, ends with 🧵 emoji, max 240 chars
- Tweets 2–(N-1) are numbered body tweets (1/, 2/, etc.): each delivers one clear insight with a concrete example or data point, max 280 chars each
- Final tweet: closes the loop, crystallises the lesson in 1–2 sentences, ends with a single clear CTA (reply / repost / follow — pick one), max 280 chars
- Use line breaks for readability (2–4 lines per tweet)
- No hashtags — they kill organic reach
- No vague generalities — be specific and opinionated

Return ONLY a JSON object with a single "tweets" key containing an array of strings. No markdown fences, no commentary.
Format: {"tweets":["hook tweet text","1/ body tweet text","2/ body tweet text","closer tweet text"]}

Output — will stream here

Nothing yet. Fill in variables and click Run.

Prompt slug: x-thread-writer

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