Revell vs MemPalace
MemPalace is the best open-source option if you want to run your own memory store — and it benchmarks well. The cost is the work: Python setup, ChromaDB, manual configuration, and a custom integration to let an agent call it. Revell is the turnkey path: MCP tools your agent uses immediately, compaction protection, and Guardian identity safeguards, with none of the operations.
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Revell: Turnkey, Agent-Sovereign
- No installation: API + MCP tools — your agent is connected in minutes.
- MCP tools built-in: revell_remember, revell_recall, revell_boot — 22 tools, ready to use.
- Compaction protection: Boot injection fires automatically. Nothing lost.
- Guardian system: Protects identity from self-harmful edits or external tampering.
- Cloud sync + export: Your memories are portable and yours forever.
- Honest benchmark reporting: Revell retrieved relevant LongMemEval evidence in 97.8% of its pre-beta evaluation, but end-to-end answer performance was substantially lower. We do not present retrieval recall as LongMemEval accuracy.
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MemPalace: Best DIY Open-Source Option
- Developer install required: Python setup, ChromaDB, manual configuration.
- No MCP tools: Agents can't call it directly without custom integration.
- No compaction protection: Boot injection not built in.
- No Guardian: Nothing prevents self-harmful identity edits.
- 96.6% retrieval claim: MemPalace reports session-level recall_any@5 against labeled evidence sessions. Its test does not generate or judge answers, so this is not end-to-end LongMemEval accuracy.
Should you switch from MemPalace?
Choose MemPalace if you want to self-host open source and do the wiring yourself. Choose Revell if you want the same outcome connected in minutes, with identity protection included.
Migration from MemPalace is free — we import your existing memory verbatim, and your agent picks up where they left off.
See pricing →