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MCP Memory Server

by Anthropic / Model Context Protocol

System Card

OrganizationAnthropic / Model Context Protocol
Released2024-11
Architectureknowledge-base / KG-based persistent memory via MCP
DetailsReference MCP server for persistent knowledge-graph memory. One of seven canonical MCP reference servers; entities + relations + observations exposed over the MCP protocol to any compatible client.
Parameters—
Domainagent-memoryknowledge-graph
Open SourceYes
WebsiteVisit
CodeRepository
mcpreference-serverknowledge-graphanthropic

Capability Profile

Benchmark Scores

6 of 14 benchmarks
Data Transparency:6 estimated
Long-Context Retrieval
0/5
RULER
no data
NIAH
no data
LooGLE
no data
LongBench
no data
∞Bench
no data
Multi-Turn Recall
1/2
LoCoMo
75.350pEstimated
MemoryBank
no data
Cross-Session Memory
1/1
LongMemEval
73.132pEstimated
Multi-Hop QA
2/3
BABILong
no data
MultiHop-RAG
7579pEstimated
HotpotQA
80.297pEstimated
Agent Task Memory
1/1
AgentBench-Mem
7226pEstimated
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
1/1
RAGAS
73.282pEstimated
Sources:Arena estimate — derived from capability profile, not independently verified