Zep
Free plan for agent memory and context graphs: 10,000 credits a month.
AI Agents
What you get
Long-term memory for AI agents: a temporal context graph built from chats and business data, with retrieval APIs and an MCP server: 10,000 credits a month.
How to get it
Click Start free on getzep.com/pricing.
What it requires
Not stated on the pricing page.
The catch
Each message or data object costs at least 1 credit per 350 bytes, so 10,000 credits is roughly 10,000 short messages. Unused credits don't roll over. Flex is $125 a month.
From the official page · checked Oct 29, 2026