Best hosted memory layer for AI agents (Mem0 vs Zep)
Depot Pick: Mem0. Runner-up: Zep (then Letta Cloud). Job: Hosted agent memory layer. Updated 2026-10-28 (newest stored date on this page).
Bolt persistent memory (add/retrieve) onto any agent without building a vector stack.
Ready call for agents
MCP https://getagentdepot.com/api/mcp → decide {"task":"hosted memory layer for my agent"}
HTTP GET /api/decide?jtbd=hosted-agent-memoryNo key. The reply carries the pick, runner-up, the pick's sourced price with its date, and a recheck token.
Depot Pick: Mem0
Editorial score 7.59 / 10 (curated estimate, as of 2026-10-28). Prices below are copied from the provider's own page; units are never converted.
DX + pricePerf for bolt-on memory; watch retrieval metering.
| Item | Price (USD) | Source | Price as of | Last re-checked |
|---|---|---|---|---|
| Hobby plan | $0 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
| Starter plan | $19 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
| Pro plan | $249 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
Runner-up 1: Zep
Editorial score 7.44 / 10 (curated estimate, as of 2026-10-28). Prices below are copied from the provider's own page; units are never converted.
| Item | Price (USD) | Source | Price as of | Last re-checked |
|---|---|---|---|---|
| Free plan | $0 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
| Flex plan | $125 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
| Flex Plus plan | $375 / month (plan base fee) | official page | 2026-10-24 | not reconfirmed |
Runner-up 2: Letta Cloud
Editorial score 7.40 / 10 (curated estimate, as of 2026-10-28). Prices below are copied from the provider's own page; units are never converted.
No sourced price stored (null). Depot never estimates a price.
Questions
- What does Agent Depot pick for Hosted agent memory layer?
- Mem0 is the stored Depot Pick for the job hosted-agent-memory. DX + pricePerf for bolt-on memory; watch retrieval metering.
- What is the runner-up?
- Zep, then Letta Cloud. The ranking is editorial (scores as of 2026-10-28) and is not chosen by price.
- When should I not use Mem0?
- Need temporal knowledge graphs — Zep; stateful agent runtime — Letta; already have pgvector.
- How much does Mem0 cost?
- Hobby plan: $0 per month (plan base fee), copied from https://mem0.ai/pricing (price as of 2026-10-24). More rows are in the table on this page.
Picks are editorial and dated; community reports never change a pick or a score. Method: /methodology · Corrections: /corrections · Compare: Mem0 vs Zep