Now in Beta — First 10 testers free

Your AI finally
remembers you.

Every conversation starts from zero. You re-explain your project, your preferences, your context. Echo is persistent memory for AI agents. Self-hosted or cloud. Your data, your rules.

Start Free (Cloud) Self-Host ($49)

Works with Claude, GPT, Gemini, Cursor, and any MCP client.

10
MCP Tools
12+
REST Endpoints
3
Search Modes
<50ms
Search Latency
60%

of AI tokens are wasted re-reading context your AI should already know

Every time

you start a new chat, your AI forgets everything you've ever told it

Scattered

notes in 5 apps, voice memos you never listen to, decisions you can't find

Built for two kinds of people

People who use AI every day

"I told Claude about my project last week and now it has no idea." Echo gives your AI a memory so every conversation starts with context, not from scratch.

Developers building with AI

Add persistent memory to any app in five lines of Python. Your chatbot remembers users. Your agent remembers decisions. Your pipeline keeps context across runs.

example.py 
import requests

API = "https://echo-memory.fly.dev/api/v1"
headers = {"X-API-Key": "echo_sk_..."}

# Store a memory
requests.post(f"{API}/memories", json={
    "content": "Sarah wants social media first, budget 12K",
    "tags": ["meetings", "q2"],
    "domain": "work"
}, headers=headers)

# Search — hybrid (FTS + vector)
r = requests.get(f"{API}/memories/search",
    params={"query": "Sarah budget"},
    headers=headers)
print(r.json()["data"])
# [{content: "Sarah wants social media first...", score: 0.94}]

How it works

Store anything. Find it instantly. Your knowledge compounds over time.

1. Capture

Save notes, decisions, meeting takeaways, research, anything. Tag it or don't. Echo indexes everything for search automatically.

2. Search

Find what you need by meaning, not just keywords. "What did Sarah say about the budget?" works even if you never typed the word "budget."

3. Compound

Memories link to each other. A note from January connects to a decision from yesterday. Your second brain grows with you.

Under the hood

Full architecture details →

Two ways to run Echo

Same engine. Same API. You choose where your data lives.

YOUR MACHINE

Self-Hosted

$49one-time

Download the binary. Run it anywhere. Data never leaves your network.

  • ✓ Single Go binary, zero dependencies
  • ✓ Runs on Mac, Windows, Linux, Raspberry Pi
  • ✓ Full API: search, store, graph, tasks
  • ✓ MCP native + REST API
  • ✓ 100% local. Zero cloud. Forever yours.
  • ✓ Lifetime updates included
Buy Self-Hosted ($49)
WE HOST IT

Cloud Hosted

Freeto start

Sign up, get an API key, start storing memories in 2 minutes.

  • ✓ Free: 1,000 memories, full-text search
  • ✓ Pro ($29/mo): 50K memories, hybrid search, graph
  • ✓ Team ($99/mo): 500K memories, 5K req/min
  • ✓ MCP native + REST API + code examples
  • ✓ Managed infrastructure on Fly.io
  • ✓ Stripe billing, upgrade/downgrade anytime
Start Free (No Credit Card)
See all features → View architecture →

Built because I needed it

Echo isn't a startup idea. It's infrastructure I built for myself and couldn't stop using.

1,000+
memories stored
10
MCP tools in production
24/7
running on a $60 Raspberry Pi

I'm a consultant, MBA student, and founder building three products at once. Every Claude Code session started from zero. I was re-explaining my architecture, re-discovering dead ends, re-making decisions I'd already made.

So I built Echo. A Go binary on a Raspberry Pi that remembers everything across every session, every project, every tool. Voice notes get transcribed and ingested while I sleep. Decisions get linked into a knowledge graph. Every morning, my AI already knows what happened yesterday.

After two months and 1,000+ memories, I realized this was the most valuable thing I'd built. Now it's yours.

Dogfooded daily since January 2026

Echo wasn't built to ship. It was built to use. These are real numbers from our own production instance.

1,000+
memories stored
451
journal entries auto-generated
7
projects tracked simultaneously
25
security fixes before first beta invite

We run Echo across consulting engagements, MBA coursework, PhD research, and three product builds. Voice notes get transcribed and ingested while we sleep. Decisions link into a knowledge graph. Every morning, the AI already knows what happened yesterday.

When we have real beta tester feedback, it'll go here. Until then, we'd rather show you real numbers than fake quotes.

Ready to give your AI a memory?

Free tier. No credit card. Five minutes to first API call.

Start Free (Cloud) Buy Self-Hosted ($49)

Questions? Want beta access? Reach out directly. We set up every beta tester personally.