Give Your Chatbot Long-Term Memory
Users hate repeating themselves. Ctxfy turns disjointed chat sessions into a continuous relationship. Enable your bot to remember names, preferences, and context across days, weeks, or years.
The User Experience Gap
The Goldfish Bot (Standard)
- Treats every new session as the first one
- Users frustrated by re-explaining context
- Zero personalization
- High churn rate
The Ctxfy Bot (Stateful)
- Remembers context from last week
- Instantly personalized greeting
- Summarizes past decisions automatically
- Feels like a real conversation
Architecture: The 'Resume' Pattern
Session 1 Ends
User chats for 30 mins about a React bug. Session closes.
Compression (Background)
Ctxfy API runs on the closed session, extracting key facts: 'User is using Next.js 14', 'Error is hydration mismatch'.
Database Store
The compressed 'State Object' (500 tokens) is saved to the user's profile in your DB.
Session 2 Starts (Next Week)
Bot loads the State Object into the system prompt. It immediately asks: 'Did you fix that hydration error?'
Built for Continuity
Customer Support AI
When a user returns after 3 days, the bot shouldn't ask 'How can I help?'. It should ask 'Did the refund go through?'. This reduces ticket reopening rates.
AI Companions & RP
For roleplay apps, memory is the product. Ctxfy allows characters to remember plot points, relationship status, and inventory across thousands of messages without hitting token limits.
// On new session start
async function startSession(userId) {
// 1. Fetch compressed memory from DB
const userMemory = await db.memories.get(userId);
// 2. Inject into System Prompt
const systemPrompt = `
You are a helpful assistant.
Current Date: ${new Date()}
LONG TERM MEMORY:
${userMemory.state_content}
`;
// 3. Start chat with context, 0 token cost for old history
return llm.chat({ system: systemPrompt, messages: [] });
}Related features
Resume in 30 Seconds
Your job: get back to productive work. Ctxfy turns 2 hours of re-reading into one paste. Load the minimal state you need—no full history. Works with ChatGPT, Claude, Gemini, and any AI tool.
Find Any Code or Decision
Your job: reuse what you already created. Stop losing 15 minutes scrolling. Ctxfy extracts code, schemas, and decisions—searchable when you need them.
Maintain Consistency
Keep AI aligned with your architectural rules and constraints across long projects
Frequently asked questions
It's better than RAG for conversation. RAG retrieves random snippets based on keywords. Ctxfy provides a coherent *summary state* of the relationship, preserving the narrative flow.
The state object is text. You own it. You store it in your database. Ctxfy processes it and forgets it.
Yes. You can merge new session states into the old memory block, creating an evolving user profile.
Memory builds loyalty.
Stop building bots that forget. Start building relationships.