Your AI forgets everything the moment a session ends. No identity. No learning. No accumulated context. Kairn wraps any existing LLM app with a persistent soul, compounding memory, and intelligent context. We engineer the context, then route each request to your LLM — one URL change.
“Every LLM call starts blank. No memory of last session. No learned identity. No accumulated context. It pretends to know you — then forgets everything.”
THE PROBLEM WITH EVERY LLM APP TODAY
// Before — stateless every call const client = new OpenAI({ apiKey: process.env.OPENAI_API_KEY }) // After — one line, full mind const client = new OpenAI({ apiKey: process.env.KAIRN_API_KEY, baseURL: "https://kairn.sh/api/proxy" })
No SDK. No rewrite. No schema migration. If your app already calls OpenAI, you're 30 seconds from a persistent AI identity.
API key verified. Rate limit checked. App config loaded.
Soul and hot memory tier (200 entities, last 7 days). Vector search if keywords detected in message.
Lightweight classification layer. Goal tracking, failure risk detection, frustration signals. Selective — fires only when meaningful signals are present.
We inject the curated context (soul + memory + intent), then route the request to your LLM. Your app receives the response as usual — no change to your code.
Response streams to your user. Simultaneously: entities extracted, soul updated, audit log written. Audit trail so you can see how your LLM behaved over time — zero latency impact.
// Before Kairn — stateless forever const client = new OpenAI({ apiKey: process.env.OPENAI_API_KEY }) // After — one line change, full mind const client = new OpenAI({ apiKey: process.env.KAIRN_API_KEY, baseURL: "https://kairn.sh/api/proxy" }) // Same API. Same model. Same messages. // Now with soul, memory, goals. const res = await client.chat .completions.create({ model: "gpt-4o", messages, }, { headers: { "x-user-id": userId, "x-byok-key": myOpenAIKey, } })
Memory APIs store text snippets. LLM gateways route traffic. Agent frameworks demand full rewrites. Kairn is the only drop-in layer that gives any existing app a persistent, evolving mind — without touching your codebase.
| Capability | LLM Gateways | Mem0 | Letta | Kairn |
|---|---|---|---|---|
| Integration method | URL change | SDK rewrite | Full rebuild | URL change |
| Evolving AI identity | ✗ | ✗ | ~ static | ✓ versioned |
| Structured memory graph | ✗ | flat snippets | in-framework | ✓ triples + vector |
| Goal + intent tracking | ✗ | ✗ | ✗ | ✓ selective |
| Decision audit trail | ✗ | ✗ | ✗ | ✓ append-only · behavior over time |
| Works with existing apps | ✓ | ✗ SDK only | ✗ rewrite | ✓ any app |
| Self-hosted option | ~ some | ✗ | ✗ | ~ roadmap |
| Category | Traffic router | Memory API | Agent framework | AI mind infra |
I plugged this in at midnight on a whim. By morning my bot remembered three users' preferences and ongoing projects. Something fundamentally changed.
The soul evolution proposals are the thing I didn't know I needed. It caught a real behavioral pattern I'd missed. I approved it. It was right.
Saved $340 in API costs month one. Token reduction alone paid for Pro 10x over. But the memory quality is what made me stay.
One URL change. Soul that evolves with your approval. Memory that builds over months. Context engineered for intelligence — not token volume.
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