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Tutorials, architecture deep-dives, and comparisons for building AI agents with persistent memory.

tutorialpython6 min read

How to Give Your AI Agent Persistent Memory in 5 Minutes

AI agents forget everything between invocations. Here's how to add persistent memory to any Python agent in under 5 minutes with 4 types of memory.

March 4, 2026·Isaac Gutiérrez Brugada
comparisonarchitecture8 min read

Mnemora vs Mem0 vs Zep vs Letta: AI Agent Memory Compared (2025)

An honest comparison of the four leading AI agent memory solutions — architecture, pricing, performance, and when to use each.

March 3, 2026·Isaac Gutiérrez Brugada
architectureconcepts5 min read

Why Your AI Agent Forgets Everything (And How to Fix It)

Your agent processes a 50-step research task, delivers results, then forgets everything. Here's why — and the architecture that fixes it.

March 2, 2026·Isaac Gutiérrez Brugada
tutoriallanggraph7 min read

Building a LangGraph Agent with Persistent Memory

Add persistent memory to your LangGraph agent with a single line change — drop in MnemoraCheckpointSaver and your agent remembers across sessions.

February 28, 2026·Isaac Gutiérrez Brugada
architectureaws7 min read

Designing a Serverless Memory Architecture for AI Agents

How we built a memory database that costs ~$1/month at idle and scales to millions of operations — without putting an LLM in every read path.

February 25, 2026·Isaac Gutiérrez Brugada
saasmulti-tenant5 min read

Multi-Tenant Agent Memory: Building AI Features for SaaS

When you add AI agents to your SaaS product, every customer's data must stay isolated. Here's the memory architecture that makes it safe and simple.

February 20, 2026·Isaac Gutiérrez Brugada