Documentation

Complete guide to using Prompt+, Chrome Extension, On-Device AI, Context Bucket, and API v1 endpoints.

1. On-Device AI (Chrome Gemini Nano)

On-Device mode runs 100% locally inside Chrome 138+ using Chrome's built-in window.ai.languageModel Prompt API. Prompts are enhanced locally with zero network requests and zero server data transmission.

2. Cross-Chatbot Context Bucket Handoff

When your token limit or message cap is reached on ChatGPT, click 📦 Carry Context in the Chrome Extension toolbar. Prompt+ scrapes the active conversation turns and saves them to local storage. Switch to Claude, Gemini, or DeepSeek and click 💉 Inject Context to continue seamlessly.

3. Chrome Extension Setup

The Prompt+ extension injects an unobtrusive floating toolbar above prompt boxes on ChatGPT, Claude, Gemini, DeepSeek, Grok, and Perplexity. Use Cmd+Shift+P (or Ctrl+Shift+P) to trigger popover enhancements.

4. API v1 Integration

Developers can access the Prompt+ Architect Engine programmatically via REST API:

POST /api/v1/extension/enhance
Content-Type: application/json

{
  "text": "Write a python script for scraping weather data",
  "category": "Coding",
  "tone": "Technical"
}

OpenAPI 3.0 specification available at /api/v1/docs.