AI Memory API Comparison

from mem0 import Memory

m = Memory()

# Store
m.add(
  "User prefers dark mode",
  user_id="alice",
  metadata={"source": "chat"}
)

# Search
results = m.search(
  "What does the user prefer?",
  user_id="alice"
)

import requests

API = "https://api.smara.io/v1"
H = {"Authorization": "Bearer smara_..."}

# Store
requests.post(f"{API}/memories", json={
  "user_id": "alice",
  "fact": "User prefers dark mode",
  "source": "chat"
}, headers=H)

# Search
r = requests.get(f"{API}/memories/search",
  params={"user_id": "alice",
    "q": "What does the user prefer?"},
  headers=H).json()

from zep_cloud.client import Zep

client = Zep(api_key="z_...")

# Add memory
client.memory.add(
  session_id="session-123",
  messages=[{
    "role": "user",
    "content": "I love hiking"
  }]
)

# Search
results = client.memory.search(
  session_id="session-123",
  text="outdoor activities"
)

import requests

API = "https://api.smara.io/v1"
H = {"Authorization": "Bearer smara_..."}

# Store (extracted fact, not raw messages)
requests.post(f"{API}/memories", json={
  "user_id": "session-123",
  "fact": "User loves hiking",
  "namespace": "preferences"
}, headers=H)

# Search
r = requests.get(f"{API}/memories/search",
  params={"user_id": "session-123",
    "q": "outdoor activities",
    "namespace": "preferences"},
  headers=H).json()

from letta import create_client

client = create_client()

agent = client.create_agent(
  name="my-agent",
  memory=ChatMemory(
    human="User is Alice",
    persona="Helpful assistant"
  )
)

# Send message (memory is implicit)
response = client.send_message(
  agent_id=agent.id,
  message="Remember I like tea"
)

import requests

API = "https://api.smara.io/v1"
H = {"Authorization": "Bearer smara_..."}

# Create agent
agent = requests.post(f"{API}/agents",
  json={"name": "my-agent",
    "owner_id": "me",
    "system_prompt": "Helpful assistant"},
  headers=H).json()

# Store scoped memory
requests.post(
  f"{API}/agents/{agent['id']}/memories",
  json={"user_id": "alice",
    "fact": "User likes tea"},
  headers=H)