MemoryRouter
BYOK: your API keys pass through to your provider

Stop paying for
AI to forget

Memory that makes every AI call smarter. Same memory, any model.

Start FreeSee Pricing

$20/mo · 14-day free trial · works with OpenAI, Anthropic & 100+ models

the entire integration
// Before: AI forgets everything
const client = new OpenAI({
  baseURL: "https://api.openai.com/v1"
});

// After: AI remembers everything
const client = new OpenAI({
  baseURL: "https://api.memoryrouter.ai/v1"
});

// That's it. Same code. Now with memory.
Same architecture as OpenRouter: your API keys pass through to your provider untouched. MemoryRouter only adds memory.
50–70%
Token reduction
<50ms
Memory retrieval
100+
Models supported
Memory contexts

Built for developers who ship

BYOK
Your keys, never ours
Encrypted
At rest & in transit
Drop-in
One line of code
100+ Models
Every major provider

Savings Calculator

How Much Are You Wasting?

Drag the slider. Watch your money come back.

$100$5,000/mo$50,000
Without MemoryRouter
Monthly inference$5,000
Wasted on re-context~$2,500
$5,000/mo
With MemoryRouter
Reduced inference$2,000
MemoryRouter plan$450
$2,450/mo
You save
$2,550/mo
51% reduction in AI costs
That's $30,600 back in your pocket per year

The Problem

The Hidden Tax on Every AI Call

You're not just paying for AI. You're paying for AI to re-learn what it already knew.

Groundhog Day Prompts

Every session, you re-explain user preferences, project context, conversation history. Again. And again.

Bloated Context Windows

Stuffing 50k+ tokens into every request because the alternative is an AI that doesn't know anything.

Token Inflation

50-70% of your tokens are redundant. You're paying for the same information over and over.

Your AI Actually Knows You

// Your code never changes. Ever.
const ai = new OpenAI({
baseURL: "https://api.memoryrouter.ai/v1"
});
// -----------------------------------------
// January 15th
await ai.chat.completions.create({
messages: [{ role: "user", content: "I prefer short emails, no fluff, sign off with just my first name" }]
});
// -----------------------------------------
// March 3rd, different session, 47 days later
await ai.chat.completions.create({
messages: [{ role: "user", content: "Draft a follow-up email to the investor" }]
});
// Concise email, signs "- John". No style guide needed.
Same code. No context stuffing. Your AI actually knows you.

The Difference

Same App. With and Without Memory.

One change. Night and day.

Without MemoryRouter

  • Re-send the entire history on every call
  • 50-70% of tokens spent re-teaching context
  • Build & babysit a vector DB + embedding pipeline
  • Bills climb as your context windows bloat
  • Your AI greets every user like a stranger

With MemoryRouter

  • Relevant context auto-retrieved & injected
  • Send less, pay less. Same or better results
  • Zero infra. Change one line of your baseURL
  • 300 to 500 ms average recall, no added ops burden
  • Your AI actually knows every user

Use Cases

Memory Changes Everything

Real products. Real savings. Real results.

Coding Sidekick

AI that actually knows your codebase.

Context
Persistent
Your AI pair programmer with a memory
Remembers that refactor from 3 weeks ago. Knows your patterns, your stack, your preferences. "Continue where we left off" actually works.
"Remember that auth flow we built last month? Let's add refresh tokens."
  • Remembers your architecture decisions
  • Knows your coding patterns & preferences
  • Project context that persists across sessions

Second Brain

AI that's read everything you've written.

Your knowledge
Indexed
Your notes, journals, ideas, all connected
Upload your Obsidian vault, your journal, your notes. AI that doesn't just search. It understands your thinking and connects ideas across everything you've ever written.
"What was that idea I had about memory systems back in January?"
  • Upload notes, journals, docs, anything
  • AI that connects your ideas across time
  • Your knowledge, always accessible

Docs & Reference

Your knowledge, instantly accessible.

Your docs
Loaded
Stop re-reading the same docs
Upload API docs, internal wikis, reference material. Anything you find yourself searching for repeatedly. AI that's already read the docs so you don't have to.
"How does the auth middleware work again?"
  • Upload any docs: APIs, wikis, manuals
  • AI that's read what you haven't
  • Your reference material, always on hand

Personal AI Companions

Build a real relationship with AI.

The difference
Everything
This is what changes everything
Current AI meets you fresh every time: a stranger on repeat. With memory, your AI actually knows you. Your humor. Your struggles. What you said three months ago. It's the difference between a chatbot and a companion.
  • Conversations that compound over months
  • AI that learns your communication style
  • The foundation for AI that actually matters to you

How It Works

Three Steps. Zero Complexity.

No vector database. No embedding pipeline. No ops burden.

1

Add Your API Keys

Bring your OpenAI, Anthropic, or OpenRouter keys. You pay providers directly. We never touch your inference spend.

2

Create Memory Keys

Each MemoryRouter key is a memory context. Create one per user, per project, per conversation. Zero to unlimited.

3

Memory Just Works

Every call builds memory. Every response uses it. Your AI gets smarter automatically. No extra code.

Powered by KRONOS, the 3D Context Engine
Your App
Same SDK
MemoryRouter
KRONOS Engine
<50ms
AI Provider
+ memories
KRONOS analyzes context across 3 dimensions: Semantic (meaning), Temporal (time), Spatial (structure)

Integration

Your Code. Now With Memory.

Native SDK support for every major provider.

Python
# pip install openai
from openai import OpenAI

# Memory key = isolated context
client = OpenAI(
    base_url="https://api.memoryrouter.ai/v1",
    api_key="mk_your-memory-key"
)

# That's it. AI now remembers this user.
response = client.chat.completions.create(
    model="gpt-5.6-sol",
    messages=[{"role": "user", "content": "..."}]
)
TypeScript
// npm install openai
import OpenAI from 'openai';

// Each key = separate memory context
const client = new OpenAI({)
  baseURL: 'https://api.memoryrouter.ai/v1',
  apiKey: 'mk_your-memory-key'
});

// Same API. Memory handled automatically.
const response = await client.chat.completions.create({)
  model: 'gpt-5.6-sol',
  messages: [{role: 'user', content: '...'}]
});
Multi-Tenant PatternOne memory per user
// SaaS pattern: each user gets isolated memory
function getClientForUser(userId: string) {
  return new OpenAI({
    baseURL: 'https://api.memoryrouter.ai/v1',
    apiKey: userMemoryKeys[userId]  // Per-user memory isolation
  });
}

// User A: "I prefer dark mode and brief responses"
// User B: "I like detailed explanations with examples"
// Each gets a personalized AI - memories never leak between users

One line of code. Infinite memory.

Swap your baseURL and your AI never forgets again. No rebuild, no vector DB, no ops.

Start FreeSee Pricing

14-day free trial · No credit card to start

Pricing

Start Free. Then Just $20/mo.

14-day free trial. Cancel anytime.

14-DAY FREE TRIAL
$20/mo
200M tokens included every month
  • 200M memory tokens / mo included
  • Unlimited memory contexts
  • All 100+ models supported
  • 300 to 500 ms average recall on a typical vault
  • BYOK: your keys, your data, your control
Start Free

Scaling fast? See plans for high-volume apps

FAQ

Questions? Answered.

Without memory, you stuff context into every API call: user preferences, conversation history, project details. That's often 50-70% of your tokens. With MemoryRouter, relevant context is automatically retrieved and injected. You send less, get the same (or better) results. Starting at $20/mo with a generous token allotment, memory is the cheapest way to make your AI smarter.

Stop Paying for AI Amnesia

500+ developers building with memory. Start free for 14 days.

Start Free

14-day free trial. Cancel anytime.

Built by John Rood, creator of VectorVault