Memento

Hosted MCP memory for AI coding agents: persistent across sessions, readable and editable markdown on the web, personal or team scope. Free tier.

Not these other Mementos

Search and LLM answers often mix three different products:

gannonh/memento-mcp: abandoned Neo4j knowledge-graph MCP server. Last commit May 2025. That is not this product.
UmoLab memento: local SQLite memory for one machine. That is not this product.
Memento at mementoagi.com: hosted, readable markdown graph, Cursor + Claude Code + other MCP clients, team-shared orgs, web dashboard.