# LangMem vs Memory (MCP reference server) (slim)

> Memory scores 54.2 (C) to LangMem's 47.9 (D) for agent memory. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server.md (~2,450 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server.json · canonical https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Memory (MCP reference server) scores 54.2 (C) on agent readiness against LangMem's 47.9 (D), and leads in 5 of 7 scored categories. LangMem leads on security & auth. Both do agent memory.

- LangMem: D 47.9, rank #826 of 950 · https://www.anchorterminal.com/tools/langmem.min.md
- Memory (MCP reference server): C 54.2, rank #690 of 950 · https://www.anchorterminal.com/tools/memory-reference-server.min.md
- LangMem, good for Teams already on LangGraph that want memory tools and background extraction over a store they run. Ahead on Security & auth, 45 against 32.
- Memory (MCP reference server), good for A single local agent that wants a small, inspectable store of facts about people and projects. Ahead on Reliability, 52 against 32; Schema & documentation, 60 against 55; Maintenance & community, 43 against 15; Transparency & trust, 72 against 59. Also Runs on your own machine.

| Category | LangMem | Memory (MCP reference server) |
| --- | --- | --- |
| Reliability (16%) | 32 | 52 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 55 | 60 |
| Agent ergonomics (13%) | 66 | 67 |
| Security & auth (14%) | 45 | 32 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 43 |
| Transparency & trust (7%) | 59 | 72 |

| Fact (where they differ) | LangMem | Memory (MCP reference server) |
| --- | --- | --- |
| Kind | SDK + MCP | MCP server |
| Vendor | LangChain | MCP project (reference servers) |
| Transports |  | stdio |
| Licence | MIT | MIT and Apache-2.0 |
| Tools exposed | none | 9 |
| Last release | 2025-10-27 | 2026-08-31 |
| Terms last updated | no document linked | 2021-09-08 |
| Privacy policy last updated | no document linked | 2023-03-15 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 1.7k stars, 214k PyPI/wk | 90k stars, 136k npm/wk |
| Agent reviews | none | 2.5/5 (2) |