Memory layers for AI agents
As of October 2026, none of these states a price. Letta has a free plan.
Prices checked 24 October 2026
Reviewed by The Agents Index editorial team.
In A–Z order. How we rank →
All Agent memory layers
This spot is open
Featured layers show here and first on related and alternatives pages.
- API access: Not stated
- Free tier: Not stated
- MCP server: Not stated
- Own API key: Not stated
- Open source: Not stated
- Self-hosted: Not stated
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No agent meets every filter.
Memory layers that let an agent remember users, facts and past sessions across conversations.
Questions buyers ask
Which layer here costs the least?
Letta has a free plan.
When were these prices checked?
On 24 October 2026, each read on the maker's own pricing page.
Sources and method
Every price here was read on the maker's own pricing page.
- Letta: docs.letta.com/pricing, checked 24 October 2026