Engram

Engram is persistent memory for AI assistants, delivered as a hosted MCP (Model Context Protocol) service at mcp.getengram.app. It stores users' conversations verbatim — complete transcripts, never lossy summaries — and makes them searchable by meaning (vector) and keyword (full-text) from any connected client. Claude, ChatGPT, Cursor, Windsurf, Claude Code, and any MCP-compatible agent share one user-owned memory: save in one tool, recall in another.

Characteristics relevant to this assessment:

• Tenancy — every conversation, chunk, and vector embedding is scoped to the user's organization, and search/retrieval filter on that scope at every store.
• Authentication — OAuth 2.1 with PKCE and dynamic client registration for connected apps; per-user API keys for SDK/CLI access; TLS everywhere.
• Data control — users can delete individual conversations (messages, chunks, and embeddings are all removed) or their entire account.
• Infrastructure — Cloudflare Workers, D1, R2, Workers AI, and Vectorize; email via Resend; auth profiles via Supabase; payments via Stripe (card data never touches Engram).
• Secrets — a separate zero-knowledge vault (client-side AES-256-GCM encryption) keeps credentials out of searchable memory.

Privacy: https://getengram.app/privacy · Trust overview: https://getengram.app/trust