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Description
Attach reusable context cards to ChatGPT, Claude, Gemini, Perplexity, and Grok — you choose what each chat knows. Right card. Right time. Any AI. CardGo gives you control over what an AI chat knows. Create reusable cards for preferences, constraints, project context, or relevant facts, then attach selected cards visibly to one conversation. Review the exact context before it is inserted, and detach it from future messages at any time. HOW IT WORKS 1. Create and manage your cards on cardgo.ai. 2. Sign in and unlock CardGo to sync your browser-encrypted cards. 3. Open a supported AI chat. CardGo can suggest likely cards locally, but you decide what to attach. 4. Send using the site's normal Send action. Only card context you attached is inserted into the provider message. 5. After sending, CardGo can suggest a useful detail to save. Review and approve or reject every proposed addition, replacement, or removal. LOCAL-FIRST SUGGESTIONS CardGo analyzes the current draft and the message you just sent locally to suggest relevant cards and details. It does not scan your conversation history. For smarter local matching, CardGo downloads one fixed, integrity-checked on-device model from models.cardgo.ai. No card, message, or account content is included in that model download. OPTIONAL CARDGO AI ASSIST CardGo AI assist is off by default and requires a separate opt-in in Options. When local matching is uncertain and you open the card picker, hosted assist may send the current unsent draft together with no more than five shortlisted card names and summaries to CardGo's API and Google's Gemini model on Vertex AI. If local analysis identifies a non-sensitive correction or retraction, hosted assist may instead send only the extracted sentence and bounded relevant card snippets to propose an exact update. This hosted feature never receives your whole card library, a complete card, encrypted card records, or a chat transcript. It never runs from the while-typing hint and never changes a card automatically. Hosted-analysis allowances are 10 per day on Free, 100 on Pro, and 500 on Max. Local suggestions remain available when the allowance, network, or hosted model is unavailable. WORKS WITH ChatGPT, Claude, Gemini, Perplexity, and Grok on Chromium desktop browsers. USER CONTROL CardGo does not automatically attach a suggested card, send an AI-provider message, or change a card without your approval. Removing a card stops future CardGo inserts. It cannot erase context already sent to an AI provider. PRIVACY Cards are encrypted in your browser before synchronization, so CardGo's servers cannot read their contents. CardGo's servers never receive your plaintext vault key. Sign-in happens on cardgo.ai and is used to identify your account and securely link the extension. Optional hosted analysis uses only the minimized payload described above. CardGo does not store that analysis text or model result; it keeps only usage counters and token counts. Privacy policy: https://cardgo.ai/privacy