Every AI agent I built had the same problem: it forgot everything the moment the conversation ended.

Not because the LLM is bad. Because there was no memory layer wiring things together. So I'd ship a chatbot, watch users re-explain their context every session, and quietly die inside.

I spent a few months building extremis to fix this.

Here's the part that matters most.

One import change

# Before
import anthropic
client = anthropic.Anthropic(api_key="sk-ant-...")

# After
from extremis.wrap import Anthropic
from extremis import Extremis

client = Anthropic(api_key="sk-ant-...", memory=Extremis())

That's it. Every client.messages.create() call now automatically recalls relevant past context before the LLM call, and saves the conversation after. Your application code doesn't change at all.

Works with OpenAI too:

from extremis.wrap import OpenAI
client = OpenAI(api_key="sk-...", memory=Extremis())

What makes it different from just storing messages in a database?

Most memory systems are cosine search — the most similar memory wins. That's the wrong metric. Similar ≠ useful.

extremis adds RL scoring. Every recalled memory can receive a +1 or -1 signal. Positive ones rank higher over time. Negative ones fade — with 1.5× weight, the same asymmetry human threat-learning uses.

results = mem.recall("what does the user prefer?")

# After using these memories in your response:
mem.report_outcome([r.memory.id for r in results], success=True)

# Next recall — confirmed-useful memories surface first

Every result also tells you why it ranked there:

"similarity 0.91 · score +4.0 · used 8× · 3 days old"

No black box. Fully debuggable.

It also has a knowledge graph

Vectors answer "what's related to this topic?" The graph answers "who does Alice work for?":

from extremis.types import EntityType

mem.kg_add_entity("Alice", EntityType.PERSON)
mem.kg_add_relationship("Alice", "Acme Corp", "works_at")
mem.kg_add_attribute("Alice", "timezone", "Asia/Dubai")

result = mem.kg_query("Alice")
# → works_at Acme Corp, timezone: Asia/Dubai

Claude Desktop (zero code)

pip3.11 install "extremis[mcp]"

Add two lines to claude_desktop_config.json, restart Claude Desktop, and you get 10 memory tools automatically. No Python code at all.

Try it

pip3.11 install extremis
extremis-demo    # shows everything working in ~20 seconds

• GitHub: https://github.com/ashwanijha04/extremis
• Docs: https://ashwanijha04.github.io/extremis/docs
• Website: https://ashwanijha04.github.io/extremis

Happy to answer questions about the RL scoring design, the knowledge graph, or anything else in the comments.