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The standard for prompt engineering. Version, test, and deploy your prompts with confidence.

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New: Agent Builder

Build Agents
In Seconds

OpenPrompt gives you two powerful ways to create: manually craft precision prompts, or let our AI Architect build them for you.

The Architect Workflow

Simply chat with "The Architect" to describe your goals. It recursively analyzes your intent and generates a highly-structured, production-ready System Prompt for you.

User:"Make me a sarcastic Python tutor."
Architect:Generates 50-line optimization...

Manual Engineering

For total control, use our advanced editor with version control, variable highlighting, and secure variable testing. Perfect for refining complex chains of thought.

  • Version History & Rollbacks
  • collaborative Forking
  • Safe API Key Storage

Deploy Anywhere

Your prompts aren't stuck here. Use them in your favorite apps.

OpenAI GPTs

  1. Create new GPT
  2. Paste System Prompt
  3. Upload Knowledge

Google Gems

  1. Open Gemini Advanced
  2. Create New Gem
  3. Paste Instructions

Claude Projects

  1. Create Project
  2. Set Custom Instructions
  3. Add Context
Developers

The Universal Prompt API

Don't hardcode prompts in your repo. Fetch them dynamically. Update your agent's behavior instantly without a redeploy.

fetch-prompt.ts
const
res = await fetch(
"https://openprompt.sparktac.in/api/v1/prompt?slug=my-agent"
, {
headers: { 'x-api-key': 'KEY' }
});

// Result
console.log(await res.json());