**Last updated: March 24, 2026**

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## Overview

SparkIn is a Chrome browser extension that generates AI-powered comments on LinkedIn using your own API key. This policy explains exactly what data the extension touches, where it goes, and what we never do with it.

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## 1. Data We Do NOT Collect

The developer of SparkIn operates no backend server and collects absolutely no user data. We do not collect, store, transmit, sell, or share:

- Your LinkedIn activity, posts, comments, or connections

- Your OpenAI or Anthropic API keys

- Your persona description or settings

- Any personally identifiable information

- Usage statistics or analytics of any kind

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## 2. Data Stored Locally on Your Device

SparkIn saves your preferences using Chrome's built-in `chrome.storage.sync` API. This stores data locally in your Chrome profile and may sync across your own signed-in Chrome instances via Google's infrastructure — the same way Chrome syncs bookmarks and passwords.

The following settings are stored:

- Your chosen AI provider (OpenAI or Anthropic)

- Your API key for the selected provider

- Your selected model name

- Your persona / voice description

- Your toggle preferences (auto-post, include thread context, include post image)

**The developer has no access to any of this data.**

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## 3. Data Sent to Third-Party AI Providers

When you click "AI Reply", SparkIn sends a request directly from your browser to the AI provider you have configured (OpenAI or Anthropic). No data passes through any SparkIn server.

Depending on your settings, the request may include:

- The text of the LinkedIn post you are commenting on

- Visible comments in the thread *(only if you enable "Include thread as context")*

- An image from the post *(only if you enable "Include post image")*

- Your persona description

- Your API key *(sent as an authorization header directly to the provider)*

These requests are subject to the privacy policies of the respective providers:

- **OpenAI Privacy Policy:** https://openai.com/policies/privacy-policy

- **Anthropic Privacy Policy:** https://www.anthropic.com/privacy

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## 4. Permissions and Why We Need Them

| Permission | Reason |

|---|---|

| `storage` | Save your settings (API key, persona, preferences) locally in Chrome |

| `linkedin.com` and `licdn.com` | Read post content to generate contextual replies; inject the AI Reply button into the comment editor; fetch post images if you enable that feature |

| `api.openai.com` | Send AI generation requests directly to OpenAI using your own API key |

| `api.anthropic.com` | Send AI generation requests directly to Anthropic using your own API key |

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## 5. No Tracking, No Ads, No Analytics

SparkIn contains no tracking code, no advertising SDKs, no analytics libraries, and no third-party scripts of any kind. The only outbound network requests made by the extension are the AI generation calls described in Section 3, which go directly to OpenAI or Anthropic.

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## 6. Children's Privacy

SparkIn is not directed at children under the age of 13. We do not knowingly collect any information from children.

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## 7. Changes to This Policy

If this policy changes materially, we will update the "Last updated" date at the top. Users can always find the current version at this URL.

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## 8. Contact

For any privacy-related questions, contact me on github:

https://github.com/motexture42/

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*SparkIn is an independent project and is not affiliated with LinkedIn, OpenAI, or Anthropic.*