memobase

Memobase

Memobase is a user profile-based memory system designed to bring long-term user memory to your Generative AI (GenAI) applications. Whether you're building virtual companions, educational tools, or personalized assistants, Memobase empowers your AI to remember, understand, and evolve with your users.

Memobase can provide you structured profiles of users, check out the result (compared with mem0) from a 900-turns real-world chatting:

Partial Profile Output

{
  "basic_info": {
    "language_spoken": ["English", "Korean"],
    "name": "오*영"
  },
  "demographics": {
    "marital_status": "married"
  },
  "education": {
    "notes": "Had an English teacher who emphasized capitalization rules during school days",
    "major": "국어국문학과 (Korean Language and Literature)"
  },
  "interest": {
    "games": 'User is interested in Cyberpunk 2077 and wants to create a game better than it',
    'youtube_channels': "Kurzgesagt",
    ...
  },
  "psychological": {...},
  'work': {'working_industry': ..., 'title': ..., },
  ...
}

Core Features

🎯 Memory for User, not Agent

Define and control exactly what user information your AI captures.

📈 SOTA

check out performance on public benchmark against mem0, langmem, zep...

📅 Time-aware Memory

Memobase has more than user profiles, it also records user event. User event is essiential to answer time-related question, see how we can improve temporal memory much better than other memory solutions.

🖼️ Contorllable Memory

Among all types of memory, only some may enhance your product experience. Memobase offers a flexible configuration for you to design the profile.

🔌 Easy Integration

Minimal code changes to integrate with your existing LLM stack with API, Python/Node/Go SDK.

⚡️ Batch-Process:

Memobase offers every user a buffer to batch processing the chats after the conversation. Fast & Cheap.

🚀 Production Ready

Memobase is building with FastAPI, Postgres and Redis, supporting request caching, authing, telemetry... Fully dockerized.

How Memobase works?

Get Started

[!NOTE]

Try Memobase-Playground, an open-source, full-stack AI Chatbot with long-term memory. live-demo

Memobase Playground

• Start your Memobase server locally. If you don't want to be bothered, Memobase Cloud provides a free tier enough for your testing
• You should have the below two things to continue:
  • A project url. (local: http://localhost:8019 , cloud https://api.memobase.dev)
  • A project token. (local: secret , cloud sk-proj-xxxxxx)
• Install the Python SDK: pip install memobase
• Below tutorial is for Python User. For other language and API, check this.

Step-by-step break down

[!TIP]

• You can just run this equivalent quickstart script

• Or you can keep things super easy by using OpenAI SDK with Memobase., Ollama with Memobase.

• Looking for MCP? Memobase-MCP is also available

1. Make sure you're connected

from memobase import MemoBaseClient, ChatBlob

mb = MemoBaseClient(
    project_url=PROJECT_URL,
    api_key=PROJECT_TOKEN,
)
assert mb.ping()

2. Manage Users

uid = mb.add_user({"any_key": "any_value"})
mb.update_user(uid, {"any_key": "any_value2"})
u = mb.get_user(uid)
print(u)

# mb.delete(uid)

3. Insert Data

In Memobase, all types of data are blobs to a user that can insert, get and delete:

messages = [
  {
      "role": "user",
      "content": "Hello, I'm Gus",
  },
  {
      "role": "assistant",
      "content": "Hi, nice to meet you, Gus!",
  }
]
bid = u.insert(ChatBlob(messages=messages))
print(u.get(bid)) # not found once you flush the memory.

# u.delete(bid)

Be default, Memobase will remove the blobs once they're processed. This means that apart from the relevant memory, your data will not be stored with Memobase. You can persist the blobs by adjusting the configuration file.

4. Get your Memory

u.flush(sync=True)

By default, Memobase will flush the buffer asynchronously. You can set sync=True to wait for the buffer to be processed.

And what will you get?

print(u.profile(need_json=True))

# results
{
  "basic_info": {
    "name": {
      "content": "Gus",
      "id": ...,
      "created_at": ...
    }
  }
}

u.profile() will return structured profiles that are learned from this user, including topic, sub_topic and content. As you insert more blobs, the profile will become better.

Why need a flush?

In Memobase, we don't memoize users in hot path. We use buffer zones for the recent inserted blobs.

When the buffer zone becomes too large (e.g., 1024 tokens) or remains idle for an extended period (e.g., 1 hour), Memobase will flush the entire buffer into memory. Alternatively, you can use flush() manually decide when to flush, such as when a chat session is closed in your app.

5. Integrate memory into your prompt

Memobase has a context api to pack everything you need into a simple string, where you can insert it into your prompt directly:

print(u.context(max_token_size=500, prefer_topics=["basic_info"]))

Something like:

<memory>
# Below is the user profile:
- basic_info::name: Gus
...
# Below is the latest events of the user:
2025/02/24 04:25PM:
- work::meetings: Scheduled a meeting with John.
...
</memory>
Please provide your answer using the information within the <memory> tag at the appropriate time.

Checkout the detail params here.

What's next?

• Checkout the quickstart script for more details
• You may want to explore the customization of Memobase to make sure the system works as your expectation.
• If you want to test Memobase on your own data, we offer a script that allows you to set multiple chat sessions and see how the memory grows.
• See our integrations to find anything may help you.
• Check Memobase-Playground, an open-source, full-stack template AI Chatbot with long-term memory. live-demo

Why/Where should I use Memobase?

Remember the users

By placing profiles into your AI (e.g. system prompt).

Demo

PROFILES = "\n".join([p.describe for p in u.profile()])

print(PROFILES)
# basic_info: name - Gus
# basic_info: age - 25
# ...
# interest: foods - Mexican cuisine
# psychological: goals - Build something that maybe useful
# ...

User analysis and tracking

Too much information is hidden in the conversations between users and AI, that's why you need a new data tracking method to record user preference and behavior.

Demo

PROFILES = u.profile()

def under_age_30(p):
  return p.sub_topic == "age" and int(p.content) < 30

def love_cat(p):
  return p.topic == "interest" and p.sub_topic == "pets" and "cat" in p.content

is_user_under_30 = (
    len([p for p in profiles if under_age_30(p)]) > 0
)
is_user_love_cat = (
  len([p for p in profiles if love_cat(p)]) > 0
)                       
...

Sell something to your customers.

Not everyone is looking for Grammarly, it's always nice to sell something your users might want.

Demo

def pick_an_ad(profiles):
  work_titles = [p for p in profiles if p.topic=="work" and p.sub_topic=="title"]
  if not len(work_titles):
    return None
  wt = work_titles[0].content
  if wt == "Software Engineer":
    return "Deep Learning Stuff"
  elif wt == "some job":
    return "some ads"
  ...

Documentation

For detailed usage instructions, visit the documentation.

Stay Updated

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Support

Join the community for support and discussions:

• Join our Discord 👻

• Follow us on Twitter 𝕏

Or Just email us ❤️

Contribute

• Check out our Changelog first, make sure the feature you want has not been developed or is currently being planned.:)
• Go through Contributing document to setup and contribute to Memobase.

License

This project is licensed under the Apache 2.0 License - see the LICENSE file for details.