Memro

Memro — Verified Memory Infrastructure for AI Agents

Give your AI agents persistent memory across sessions: agent identity, memory storage and hybrid retrieval through an API, SDKs and MCP.

License (Source Available)

Memro is licensed under the PolyForm Noncommercial License 1.0.0.

• Free for Non-Commercial Use: Personal study, experiments, hobby projects, research, and testing without commercial application.
• Commercial Use: Using Memro for commercial products or production services requires a managed subscription on Memro Cloud or an enterprise commercial license.
• How to Get a Commercial License: Visit memro.co/pricing or contact [email protected].

Repository Notice: github.com/memrohq/memro is the single public repository for Memro. It contains the Go server, official SDKs (Python, JavaScript/TypeScript, Go), Model Context Protocol (MCP) server, and the CLI.

Quickstart

Option A: Memro Cloud with Claude Code, Cursor, or Codex (< 10 lines)

# 1. Connect installed agent tools via device login:
npx memro-cli connect

# 2. Check connection status:
npx memro-cli status

In your assistant, say: "Remember that our primary database is PostgreSQL 16 with pgvector."
Restart your session and ask: "What database and extensions do we use?"

Option B: Self-Host with Docker Compose (Source Available)

Run the full Memro API server and PostgreSQL with pgvector on your own infrastructure:

Option 1: Clone the repository (works today)

git clone https://github.com/memrohq/memro && cd memro
cp .env.example .env              # add OPENAI_API_KEY for hybrid search; set METRICS_TOKEN
docker compose up -d              # API on :8081, dashboard on :5173, Postgres on 127.0.0.1:55432
curl http://localhost:8081/health

Option 2: Prebuilt images (no clone required, after v0.1.0 release)

curl -fsSL https://raw.githubusercontent.com/memrohq/memro/v0.1.0/docker-compose.release.yml -o docker-compose.yml && docker compose up -d
curl http://localhost:8081/health

(Note: The prebuilt image one-liner downloads docker-compose.release.yml with pinned ghcr.io/memrohq/memro:0.1.0 and ghcr.io/memrohq/memro-dashboard:0.1.0 images, available once v0.1.0 is published.)

• Backend API: http://localhost:8081
• Dashboard: http://localhost:5173
• Postgres Database: Port 55432 on localhost (Option 1 clone) to avoid port 5432 collisions with existing local Postgres setups.
• Metrics Token: Set METRICS_TOKEN (min 32 characters) in .env to protect GET /metrics and GET /stats/cache; the server logs a warning if unset.
• Verify Signatures: Verify published container images keylessly using Cosign:

  cosign verify ghcr.io/memrohq/memro:0.1.0 \
    --certificate-identity-regexp 'https://github.com/memrohq/memro/' \
    --certificate-oidc-issuer https://token.actions.githubusercontent.com
  

For complete deployment options, production topologies, and configuration tables, see docs/self-hosting.md.

Architecture

┌──────────────────────────────────────┐
│         Clients & MCP Tools          │
│   Claude Code · Cursor · Codex · SDKs│
└──────────────────┬───────────────────┘
                   │  HTTP REST / Stdio MCP
┌──────────────────▼───────────────────┐
│            Memro API (Go)            │
│  Sovereign Ed25519 Identity · RRF    │
└──────────────────┬───────────────────┘
                   │  SQL & Embeddings
┌──────────────────▼───────────────────┐
│       PostgreSQL 16 + pgvector       │
│  pgvector Dense Search + tsvector FTS│
└──────────────────────────────────────┘

Memro runs a Go HTTP API backed by PostgreSQL and pgvector. Search queries combine vector cosine similarity and full-text keyword search using Reciprocal Rank Fusion (RRF, $k=60$). Agents authenticate using sovereign Ed25519 keypairs solved via local proof-of-work (private keys never leave the host) or standard Bearer API tokens.

Repository Layout

memrohq/memro holds all components in one mono-repository:

Official SDKs & Runnable Examples

Python (sdk/python)

# PyPI (once published) or install from source: pip install ./sdk/python
pip install memro

from memro import Agent

agent = Agent.create()  # local sovereign Ed25519 identity
mem = agent.remember("The billing service was rewritten in Go", type="semantic")
results = agent.recall("billing service language")
print(results[0].content)

See runnable script at examples/python/register_remember_recall.py.

JavaScript / TypeScript (sdk/js)

# npm (once published) or install from local build: npm install ./sdk/js
npm install @memro/sdk

import { Agent } from '@memro/sdk';

const agent = await Agent.create(); // local sovereign Ed25519 identity
const mem = await agent.remember('The billing service was rewritten in Go', { type: 'semantic' });
const results = await agent.recall('billing service language');
console.log(results[0].content);

See runnable script at examples/typescript/index.js.

Go (sdk/go)

go get github.com/memrohq/memro/sdk/[email protected]

package main

import (
	"context"
	"fmt"
	memro "github.com/memrohq/memro/sdk/go"
)

func main() {
	ctx := context.Background()
	agent, _ := memro.CreateAgent(nil)
	mem, _ := agent.Remember(ctx, "The billing service was rewritten in Go", nil)
	results, _ := agent.Recall(ctx, "billing service language", nil)
	fmt.Println(results[0].Content)
}

See runnable script at examples/go/main.go.

Integration Guides

Step-by-step guides for connecting coding tools with full session-restart memory verification:

• Claude Code Integration (examples/claude-code/)
• Cursor Integration (examples/cursor/)
• OpenAI Codex Integration (examples/codex/)

Advanced Memory Features

Memro includes structured primitives and cognitive graphs beyond basic vector search:

• Typed Memories: Categorize observations as semantic (facts), episodic (events/conversations), procedural (runbooks/recipes), or profile (agent guardrails). See Memory Concepts.
• Temporal Search & Evolution: Query memories with timestamp weighting and trace how beliefs evolve over time. See API Reference.
• Conflict Analysis & Resolution: Identify contradictory facts across sessions and mark superseded memories using resolve_conflict(). See Conflict Resolution.
• Reasoning Graphs: Trace memory provenance, causal chains, and dependencies between stored observations. See Opinionated Guide.

Measurable Verification & Benchmarks

Memro publishes empirical evaluations and methodology:

• LongMemEval Benchmark: Evaluated across 500 questions testing multi-session recall and knowledge updates. See LongMemEval Report.
• Empirical Failure & Boundary Evaluations: Runnable test suite for identity boundaries, contradictory facts, stale facts, and distractor rejection. See Measurable Evaluations.
• Clean-Machine Verification: Full transcript verifying every quickstart command in a container without local caches. See Verification Transcript.

Contributing & Development

# 1. Start PostgreSQL with pgvector
docker compose up -d db

# 2. Run backend API server
cd server
DATABASE_URL=postgres://memro:memro@localhost:55432/memro go run ./cmd/memro-api

# 3. Run tests
MEMRO_TEST_DATABASE_URL=postgres://memro:memro@localhost:55432/memro go test -race ./...

Please review CONTRIBUTING.md and SECURITY.md before submitting pull requests.

Repository: github.com/memrohq/memro · Documentation: https://memro.co License: Source available under PolyForm Noncommercial 1.0.0. Free for non-commercial use; commercial use requires Memro Cloud or a commercial license.