Engram

Memory infrastructure for AI agents. Store every conversation verbatim. Search by meaning.

Engram is an MCP-native memory server that stores complete, uncompressed conversation transcripts and makes them searchable via semantic search. Connect any MCP-compatible client — Claude Desktop, Claude Code, Cursor, Windsurf, Zed — and your agent remembers everything across sessions.

Quick start

1. Sign up at getengram.app and get your API key
2. Add to your MCP config (Claude Desktop, Claude Code, Cursor, etc.):

{
  "mcpServers": {
    "engram": {
      "command": "npx",
      "args": ["-y", "@getengram/cli@latest", "mcp"],
      "env": {
        "ENGRAM_API_KEY": "engram_sk_live_..."
      }
    }
  }
}

3. Start using it. Your agent now has persistent memory.

How it works

• Verbatim storage — every message stored exactly as sent, no summarization or compression
• Semantic search — find relevant context by meaning using bge-base-en-v1.5 embeddings
• MCP-native — speaks the Model Context Protocol natively, works with any compatible client
• Multi-tenant — per-organization isolation, team seats, and API key management

Architecture

Runs entirely on Cloudflare's developer platform:

• Workers — Hono.js API and MCP server
• D1 — SQLite at the edge for messages and metadata
• Vectorize — semantic search index
• Workers AI — embedding generation

Read the full architecture deep-dive.

MCP tools

Engram exposes 6 tools via MCP:

Tool	Description
create_conversation	Start a new conversation with optional title, tags, metadata
append_messages	Add messages to an existing conversation
search	Semantic search across all conversations
get_conversation	Retrieve a conversation with its messages
list_conversations	List conversations with filtering and pagination
delete_conversation	Remove a conversation and its data

See the API reference for full parameters and examples.

Packages

Package	Description
apps/mcp-server	Cloudflare Worker — MCP server and REST API
apps/cli	CLI and MCP bridge (@getengram/cli)
packages/sdk	TypeScript SDK (@getengram/sdk)
packages/db	Database queries and migrations
packages/shared	Shared constants, types, and utilities

Integration guides

• Claude Desktop
• Claude Code
• Cursor
• Windsurf
• OpenAI Codex CLI
• Custom agents

Pricing

Plan	Price	Messages/month
Free	$0	1,000
Pro	$39/mo	100,000
Team	$49/seat/mo	500,000
Enterprise	Custom	Unlimited

View pricing

Links

• Website: getengram.app
• Documentation: getengram.app/docs
• Blog: getengram.app/blog
• npm: @getengram/cli

License

Business Source License 1.1 — see LICENSE for details.