Engram

July 12, 2026 · View on GitHub

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

Sign up at getengram.app and get your API key
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_..."
      }
    }
  }
}

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

Pricing

Plan	Price	Messages/month
Free	$0	1,000
Pro	$9/mo	100,000
Team	$27/seat/mo	500,000
Enterprise	Custom	Unlimited

View pricing

License

Business Source License 1.1 — see LICENSE for details.