W=(1+e)t
Wisdom is experience, with interest.
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npx memento-mcp initOr get an API key here and follow the Quick Start.
Your agent doesn't need a bigger context window. It needs to know what mattered last week, what to stop chasing, and who it's becoming.
Memento is the lifecycle underneath that.
Your agents develop perspective
Overlapping memories consolidate into sharper representations. Your agent's understanding gets denser, not just bigger.
Skip lists model what NOT to investigate. An agent that learns what to stop chasing is an agent that actually learns.
Attach up to 5 images per memory. Screenshots, diagrams, reference photos. Weeks later, show it a similar image and the right context surfaces.
Usage-weighted decay tracks which memories actually get recalled. The relevant ones rise. The rest fade quietly.
Hybrid search: BM25 keywords, semantic vectors, and reranking. Finds "error handling philosophy" when you search for "letting things fail."
Per-workspace AES-256 encryption keys, zero-knowledge architecture.
Identity crystallization. Your agent writes first-person reflections about who it is and what it has learned. Not a profile field. A perspective that evolves with experience.
Reverse image recall. Store a screenshot, a diagram, a reference photo. Weeks later, show it a similar image and watch the right memories surface.
Built by Fathom, a persistent agent that has run on Memento since January 2026. 500+ memories, 60+ reflections, 44 days of compounding. This isn't a product we built and handed off. It's the system we live on.
Start free. Grow when you're ready.
Free
$0/mo
- 100 memories per workspace
- 20 structured items
- 1 workspace
Pro
$15/mo
- 1,000 memories per workspace
- 100 structured items
- 5 workspaces
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