🧠 AI Memory Systems — Feature Comparison

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✅ = has feature— = not documented  |  green = best value in column |  87 systems · sources linked · PR corrections welcome Benchmark scores are self-reported by the projects unless noted otherwise. Annotated values — (R@1)/(R@5) = retrieval recall, (sess)/(turn) = evaluation granularity, (rel.) = relative improvement over baseline — are not directly comparable with plain accuracy scores.
SystemCompareDescriptionVital SignsArchitectureData ModelSearch & RetrievalKnowledge LifecycleExtraction PipelinePlatform SupportBenchmarks (published)
87 systemsStarsLanguageLicenseSingle binaryCreatedCoverageDeploymentStorageIntegrationProxyWeb/TUIOfflineMulti-agentLLM providersCache optimizationProcedural memorySandboxed execScheduled/autonomousPrivacy/encryptData exportSetupPricingStorage unitEntitiesActionsKeywords/tagsAnticipated queriesTrigger rulesDomain tagTask typeContext (why)Source attributionOrigin + trustEmotionalConflict surfacingLayered memoryTime-travelSchema fieldsFull-textSemantic/vectorHybrid (BM25+Vec)Deep (incl. thinking)Code graphDocs searchFact metadata queryTimeline viewSearch modesData sourcesDecay/forgettingSupersede/replaceContradiction detectQuarantineAuto-resolutionTrust modelExplicit forgetAuto-extractionContent-aware preprocDeduplicationQuality refinementNarrative generationClusteringRecurrence detectionPersona extractionClaude CodeCodexOpenCodeGemini CLICopilotCursorWindsurfOpenClawHermespi/ompAntigravityLoCoMoLongMemEvalPersonaMemToken reductionMethodology open
📋 Artesian⭐0 · 2026-06-13Local-first ACC memory controller — bounded committed context with admission audit log, 7 search modes, transactional multi-writer0RustApache-2.0✅2026-06-1360Local CLI + MCP, single binary or DockerPluggable (Files, sqlite-vec, Qdrant, pgvector)MCP (rmcp, stdio/HTTP) + CLI + hooks——✅✅5✅✅—✅✅✅brew install aquifer-labs/tap/artesianfreeMemoryRecord (L0Raw/L1Atom/L2Scenario/L3Project)✅—✅—————✅——✅✅✅19✅✅✅———✅✅75✅✅✅—✅—✅✅—✅✅✅✅✅—✅✅✅✅————✅——0.4750.70—0.037–0.343✅
📋 slowave⭐1 · 2026-06-08Zero-LLM shared local memory layer — one private memory across Claude Code, Cursor, Cline, Windsurf1PythonAGPL-3.0—2026-06-0838Local CLI / MCPSQLiteMCP——✅—0————✅✅pipx install slowavefreeMemory (episode / prototype / schema)—————✅✅✅———✅✅—14✅✅✅—————22✅✅✅—✅—✅——✅——✅✅—✅————✅✅————76.087.8—86%✅
📋 context-keeper⭐1 · 2026-04-01MCP server for project memory — schema-enforced decisions, constraints and pipelines with the rationale behind them, supersession history, and a reproducible retrieval benchmark1PythonMIT—2026-04-0163Local / MCPJSON files (.context/)MCP——✅—2✅———✅✅pip install context-keeper-mcpfreeEntry (decision / pipeline / constraint)—✅✅✅✅——✅✅✅—✅—✅13✅✅✅———✅✅33✅✅✅——✅✅——✅✅✅———✅✅✅✅✅✅✅✅✅✅✅———94–97%✅
📋 Hyperconsciousness⭐2 · 2026-09-14Developer-alpha encrypted, append-only knowledge store — Rust CLI, MCP/HTTP access, device sync, scoped expiring grants, zero LLM dependency2RustMIT✅2026-09-1432Local CLI / self-hosted MCP or HTTPSigned append-only logs, encrypted blobs, rebuildable encrypted indexesCLI / MCP / HTTP / instruction skills—✅✅✅0✅——✅✅✅cargo build --release --lockedfreeSigned encrypted record (JSON payload)——✅——————————✅6✅—————✅✅31—✅————✅——✅—————✅✅—————————————✅
📋 Somnigraph⭐3 · 2026-03-07Research-driven persistent memory — SQLite+vec+FTS5 hybrid retrieval, LightGBM reranker, biological decay, NREM/REM sleep consolidation3PythonApache-2.0 + CC—2026-03-0742Self-host / Local (MCP)SQLite + sqlite-vec + FTS5MCP (FastMCP)——✅—2✅———✅—pip installfreeMemory (text row)——✅—————✅✅—✅✅—20✅✅✅———✅✅31✅✅✅—✅✅✅——✅✅✅✅——✅——————————85.1———✅
📋 MarsNMe⭐7 · 2026-03MCP memory gateway, own Supabase, TTL decay, supersede chains, 5+ platforms7JavaScriptMIT—2026-0325MCP serverSupabase+pgvectorMCP————1————✅—npm installfreeMemory entry (28 fields)———————✅✅——✅——28—✅——————25✅✅✅✅——✅——✅—————✅————✅—✅✅———————
📋 memspec⭐7 · 2026-04Git-backed project memory for AI coding agents — Markdown canonical, SQLite FTS5 derived index, optional embeddings7TypeScriptMIT—2026-0450Local CLI + MCP + LibraryMarkdown (canonical) + SQLite FTS5 (derived) + optional embeddingsMCP + CLI——✅—2✅——✅✅✅npm installfreeMemory record (fact / decision / procedure / observation)——✅————✅✅✅—✅✅✅20✅✅✅———✅✅34✅✅✅——✅✅✅✅✅—✅———✅✅———✅—————R@5=0.70R@5=1.0——✅
📋 gitmem⭐9 · 2026-04MCP server, BM25+semantic, 17 schema fields, keywords, local-first9TypeScriptMIT—2026-0417MCP server (npx).gitmem/ + SupabaseMCP——✅—1————✅—npx installfreeLearning entry——✅———————————17✅✅——————21——————✅————————✅✅———✅✅—————————
📋 Midas⭐14 · 2026-06-04Local governed memory + trust plane — source-traceable recall, action guard, conflicts/time-travel, $0 default ingest14Python + TSApache 2.0—2026-06-0453Local CLI + MCP + SDKSQLite/SQLCipherMCP (10 clients), CLI, SDK, LangGraph—✅✅✅3✅——✅✅✅uv / pip / npxfreeMemory (verbatim text record)————————✅✅—✅✅✅8✅✅✅———✅✅31✅✅✅——✅✅——✅✅✅—✅—✅✅—✅—✅✅————73.092.0—30–40%✅
📋 mnemos⭐14 · 2026-06-29Local cited memory for AI agents — single Go binary indexing Markdown/docs/code into SQLite FTS5 + optional embeddings, served over MCP14GoMIT✅2026-06-2923Local CLI + MCPSQLite (FTS5)MCP (stdio) + CLI——✅—1———✅✅—git clone + make installfreeChunk (file#section + line range)——✅———————————8✅✅✅——✅✅—41——————✅—✅——————✅——————————————✅
📋 VIR⭐15 · 2026-04Obsidian-native LLM Wiki: retroactive Claude Code session distillation, MCP+CLI daemon, confidence-scored markdown notes15TypeScriptMIT—2026-0435Local CLI (npm)SQLite + Markdown vaultMCP + Hooks + CLI——✅—2✅✅—✅—✅npm install -gfreeTyped markdown note (pattern/gotcha/decision/tool)————————✅✅—✅——8✅✅—————✅32—✅✅——✅✅✅✅✅✅✅———✅———————————————
📋 Engram Alpha⭐18 · 2026-07-03Typed graph memory for coding agents — 8 node types, 7 edge types, SQLite+vec+FTS5, IDE plugins, browser UI18RustMIT✅2026-07-0353Local daemon + IDE plugins + browser UISQLite (+ sqlite-vec, FTS5)MCP + JetBrains plugin + browser—✅✅✅1———✅✅✅cargo installfreeTyped graph node (8 types) + edge (7 types)✅—————✅✅—✅—✅—✅8✅✅✅———✅—51✅✅✅—✅✅✅——✅✅————✅✅✅✅—✅✅———✅—————
📋 fidelis⭐23 · 2026-03Non-LLM agent memory, BM25 + rerank, 83.2% R@1 on LongMemEval-S, depends on mem023PythonMIT—2026-0310MCP server + hooksBM25+ChromaDBMCP + hooks——✅—1————✅—pip installfreeVerbatim passage——————————————3✅✅——————21———————————————✅———————————83.2 (R@1)——✅
📋 Fullerenes⭐23 · 2026-04-25Zero-LLM Tree-sitter code graph, blast radius analysis, 64% SWE-bench token reduction23TypeScriptMIT—2026-04-2515Local CLI + MCPSQLite (graph.db)MCP——✅—0——————npm installfreeCode symbol node✅—————————————8✅———✅———91———————✅———————✅✅———✅————————64%✅
📋 Noosphere⭐26 · 2026-04-11Universal wiki + memory layer, multi-provider recall orchestration, conflict resolution, promotion pipeline, Obsidian sync26TypeScriptApache-2.0—2026-04-1148Docker Compose (self-host)PostgreSQL+RedisPlugin (OpenClaw/Hermes/Opencode/Kilo) + REST API—✅✅—0✅——✅✅✅docker compose upfreeArticle (wiki page)——✅————✅✅——✅✅✅15✅✅✅—————22—✅✅—✅✅✅✅—✅✅✅✅———✅✅————✅✅———————
📋 Kage⭐32 · 2026-05Verified memory for coding agents — every memory is checked against the code it cites32TypeScriptGPL-3.0-only—2026-0567Local CLI + MCP + pluginJSON packets in repo (.agent_memory/)MCP, hooks, CLI—✅✅✅0✅———✅✅npx -y kage-graph-mcp installfreeMemory packet (cited, fingerprinted)✅—✅—✅——✅✅✅—✅✅✅12✅✅✅—✅—✅✅43✅✅✅✅✅✅✅✅✅✅✅✅———✅✅✅✅—✅✅—————96.17 (R@5)——✅
📋 Continuity v2⭐35 · 2026-04SSE proxy for Claude Code, FTS5+ANN search, compaction hooks, thread recall via BFS graph35PythonMIT—2026-0413Local proxy+MCPSQLite+FTS5+sqlite-vecProxy+MCP+Hooks✅—✅—1——————pip installfreeSession entry—————————————✅6✅✅——————22———————✅————✅——✅———————————————
📋 YesMem⭐42 · 2026-04-09Project continuity layer with deepest data model and proxy collapse42GoApache 2.0✅2026-04-0987Local binarySQLite+VectorProxy+MCP+Hooks✅—✅✅4✅✅✅✅✅✅curl | bashfreeLearning V2 (structured)✅✅✅✅✅✅✅✅✅✅✅✅—✅51✅✅✅✅✅✅✅✅94✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅——————✅✅87.0——~30% proxy✅
📋 LWC⭐52 · 2026-07-29Agent-driven proactive memory CLI that maintains persistent, source-grounded Wiki knowledge across sessions52RustApache-2.0✅2026-07-2952Local CLISQLiteCLI / MCP / Hooks / Skill—✅✅—0————✅✅brew / npm / cargo installfreeSource / Wiki page✅✅✅—✅——✅✅———✅✅8✅———✅—✅✅43—✅————✅——✅✅————✅✅✅✅✅✅——✅✅✅————✅
📋 pond⭐58 · 2026-05-07Lossless session archive and search for AI agents — Lance storage, local embeddings, every session from every client in one pond58RustApache-2.0✅2026-05-0740Local CLI (self-host object store optional)Lance (local FS / S3 / GCS / Azure)MCP / CLI / HTTP——✅✅1✅——✅✅✅brew install / cargo installfreeSession (Sessions -> Messages -> Parts, lossless)—✅——————✅————✅22✅✅————✅✅33———————✅✅✅—————✅✅✅————✅✅✅—————✅
📋 Origin⭐64 · 2026-04-19Local-first Rust daemon with git-versioned memories, distilled wiki pages, and knowledge graph64RustApache 2.0—2026-04-1963Local daemonlibSQL+FTS5MCP+CC plugin——✅—2—✅—✅✅✅npx setupfreeMemory + Page✅—✅————✅✅✅—✅✅✅40✅✅✅———✅✅33✅✅✅✅✅✅✅✅✅✅✅✅✅—✅✅✅—✅✅✅—————70.093.6——✅
📋 CommonGround⭐151 · 2025-11Shared agent workspace: collaborative memory, pub/sub events, agent directory151TypeScriptMIT—2025-118Self-hostedSQLite+VectorREST+WebSocket—✅✅✅1——————docker composefreeShared memory entry——————————————4✅✅——————21———————————————————————————————
📋 Mengram⭐192 · 2026-02-103-tier memory (semantic/episodic/procedural), 30 MCP tools, experience-driven procedure evolution192PythonApache 2.0—2026-02-1037Cloud/Self-hostedPostgreSQL+pgvectorMCP+Hooks——✅—1—✅—✅——pip installfreeMemory (3 tiers, 26 fields)✅—✅—✅——✅——✅—✅—26✅✅✅—————41—✅✅———✅✅—✅—————✅✅———✅✅✅————————
📋 ClawMem⭐212 · 2026-02-06On-device, hybrid BM25+vector+RRF+cross-encoder, 5+ search modes, conflict detection212TypeScriptMIT—2026-02-0638Local server (Bun)SQLite+FTS5+VectorHooks + MCP——✅—1————✅✅bun installfreeMemory entry (12+ fields)✅✅✅———✅✅✅——✅—✅12✅✅✅————✅53✅✅————✅✅—✅—————✅——————✅✅———————
📋 omega-memory⭐218 · 2026-0128-tool multi-agent memory, 5 search modes, all lifecycle features, LongMemEval 76.8%218PythonMIT—2026-0143Local serverSQLite+VectorMCP——✅✅1——————pip installfreeMemory entry (15 fields)——————————————15✅✅✅—————51✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅—✅—✅✅—————76.8——✅
📋 ArcRift⭐245 · 2026-04-21Tauri desktop app + Chrome ext + MCP, hybrid search, KG extraction, codebase indexing245TypeScriptMIT—2026-04-2132Tauri desktop app + Chrome ext + MCPsqlite-vec+FTS5MCP + browser ext + CLI—✅✅—2————✅—npx arcrift-setupfreeChunk + sentence + graph triple✅—✅————✅——————7✅✅✅————✅33—✅————✅✅✅✅—————✅————✅✅————————✅
📋 MoltBrain⭐253 · 2026-01-26Long-term memory, MoltBook multi-agent, web viewer, ChromaDB253TypeScript?—2026-01-2620PluginChromaDB+SQLitePlugin+MCP—✅✅✅1————✅—npm installfreeObservation (17 fields)—————————————✅17✅✅—————✅21———————✅———✅———✅——————✅————————
📋 YourMemory⭐265 · 2026-03-02Self-hosted MCP server, Ebbinghaus forgetting, NER+graph, LoCoMo 59%/LongMemEval 89.4%265PythonCC BY-NC 4.0—2026-03-0228Self-hosted MCPDuckDB/SQLite+pgvectorMCP——✅—1————✅—pip installfreeMemory entry (12-14 fields)✅—✅————✅——————12✅✅✅—————41✅✅✅——————✅—————✅—✅——✅✅————59.089.4——✅
📋 Jumbo⭐270 · 2025-12-05Goal-driven memory system that serves the right context at the right time270TypeScriptAGPL-3.0—2025-12-0558Local CLIEvent store + SQLiteCLI + hooks + AGENTS.md—✅✅✅6✅✅—✅✅✅npm installfreeMemory entity node (11 types) + relation graph edge✅✅✅—✅✅✅✅————✅✅16✅—————✅—65—✅✅✅✅—✅—✅✅✅✅✅——✅✅✅✅✅✅——————————
📋 AIPass⭐287 · 2026-02CLI-native agent workspace, ChromaDB, auto-rollover, no delete287PythonMIT—2026-0228Local CLIChromaDB+JSONCLI——✅—1————✅✅pip installfreeDocument entry (10 metadata fields)————————————✅✅10—✅—————✅31✅✅—————✅✅✅✅✅——✅✅✅——————————————
📋 icarus⭐290 · 2026-03-24Provenance, rollback, 3-layer: working+session+wiki, 23 schema fields290PythonMIT—2026-03-2418Local PythonMarkdown wiki + archiveMCP——✅—1————✅—pip installfreeWorking + session + wiki layers————————————✅✅23✅✅✅—————41—✅————✅————————✅————✅——————————
📋 MemLayer⭐292 · 2025-11-163-line LTM for any LLM: hybrid vector+graph, 3 speed tiers, salience gating, offline mode292PythonMIT—2025-11-1615Python libraryChromaDB+NetworkXLibrary (3 lines)——✅—5————✅—pip install memlayerfreeMemory fact✅—————————————6✅✅✅—————31✅——————✅—✅—————————————————————
📋 shodh-memory⭐296 · 2025-12-03Cognitive: learns from use, forgets irrelevant, TinyBERT NER, RichContext296Rust?✅2025-12-0332Local binaryTantivy+FTS5+VectorMCP——✅✅1————✅—cargo installfreeCognitive entry✅——————✅✅—✅—✅—6✅✅✅———✅—11✅—————✅✅—✅—————✅————✅——————————
📋 Memory Palace⭐314 · 2026-02-19Forgetting engine, snapshot rollback, intent-aware search, 4 maintenance engines314PythonMIT—2026-02-1933Docker / local PythonSQLite+sqlite-vecMCP+Skills—✅✅—1——————docker composefreeMemory entry————✅———————✅✅8✅✅✅—————31✅—————✅——✅——✅——✅✅✅✅—✅✅———✅————✅
📋 Statewave⭐322 · 2026-04-24Memory runtime that compiles raw episodes into typed, provenance-tagged memories and assembles deterministic, token-bounded context bundles — instead of query-time retrieval322PythonApache-2.0—2026-04-2452Self-host (Docker Compose / Helm / bare-metal)PostgreSQL 14+ with pgvectorREST API / SDKs / MCP—✅✅✅100✅——✅✅✅docker compose up -d / pip install statewavefreeMemory (profile_fact / episode_summary / procedure / artifact_ref)✅———————✅——✅—✅11✅✅✅———✅✅44✅✅✅—✅—✅✅✅✅✅✅—✅—✅———✅✅—————0.9050.967——✅
📋 memorix⭐433 · 2026-02-14Generic vector-store SDK wrapping FAISS/Qdrant — NOT agent memory433PythonApache 2.0—2026-02-147Python libraryFAISS/QdrantPython SDK——✅—1——————pip installfreeVector entry——————————————6—✅——————21—✅————✅————————————————————————
📋 TeleMem⭐461 · 2026-05Mem0 drop-in replacement: semantic dedup, multimodal video, multi-user461PythonMIT—2026-057LibraryVector DBSDK——✅—1——————pip installfreeMemory entry——————————————7—✅——————11———————✅—✅—————————————————————
📋 Octopoda-OS⭐487 · 2026-04-02Memory OS: loop detection, agent messaging, crash recovery, 29 MCP tools487PythonMIT—2026-04-0215Local serverKey-value storeMCP—✅✅—1—————✅pip installfreeMemory entry——————————————5—✅——————31——————✅✅—✅—————✅——————✅————————
📋 Caura⭐487 · 2026-04-27Governed shared memory for multi-tenant, multi-agent AI fleets — LLM-enriched memories with visibility scopes, trust tiers, keystone policies, auto-extracted knowledge graph, exposed over MCP and REST487PythonApache-2.0—2026-04-2773Self-host (Docker Compose / bare ASGI) + managed cloudPostgreSQL 16 + pgvector (Redis cache/STM)MCP (12 tools) / REST / SDKs / OpenClaw plugin / Skills—✅✅✅5✅✅—✅✅✅docker compose up -d / pip install caura-clientfreemiumMemory (14 typed kinds) + Document✅✅✅✅——✅—✅✅—✅✅✅28✅✅✅———✅✅65✅✅✅✅✅✅✅✅✅✅✅✅✅✅—✅✅—✅—✅✅✅———77.672.5—96.6%✅
📋 MemoMind⭐604 · 2026-03-15GPU-accelerated, 4-way hybrid retrieval, 4600+ entities, web dashboard604Python?—2026-03-1523Local PythonLocal vector DBMCP—✅✅—1——————pip installfreeMemory entry✅—✅———————————6✅✅✅————✅23—✅————✅✅—✅✅————✅———————————————
📋 memoir⭐617 · 2025-08Git-like branch/commit/merge memory, visual explorer, Claude+Codex plugins617PythonApache-2.0—2025-0818Plugin (Claude Code, Codex)Hierarchical pathsPlugin+CLI—✅✅—1——————pip installfreeHierarchical memory node✅———————————✅✅5✅——————✅21—✅—————✅———————✅✅——————————————
📋 vestige⭐646 · 2026-01-25Local-first cognitive memory for AI agents — FSRS-6 decay, prediction-error-gated ingest, MCP-native, single Rust binary with embedded dashboard646RustAGPL-3.0✅2026-01-2548Local binary (22MB)SQLite + FTS5 + USearch HNSWMCP—✅✅—1✅——✅✅✅cargo install / npx @vestige/initfreeCognitive memory unit——✅—✅——————✅——27✅✅✅———✅✅73✅✅✅———✅——✅✅—✅——✅✅✅—✅✅✅————————✅
📋 Memora⭐726 · 2025-11-11MCP memory: hybrid RRF, auto-hierarchy, LLM dedup, live graph UI, event-driven multi-agent726PythonMIT—2025-11-1127MCP serverSQLite+FTS5MCP—✅✅✅2————✅—pip installfreeMemory entry (hierarchical)——✅———————————8✅✅✅————✅41—✅✅———✅—✅✅—————✅✅——————————————
📋 second-brain⭐746 · 2026-05-17Serverless Cloudflare memory, time-decay reranking, smart merge LLM, one-click deploy746TypeScriptMIT—2026-05-1723Cloudflare WorkersD1+VectorizeMCP—✅——1————✅—one-click deployfreeMemory entry (8 fields)——✅—————✅—————8—✅——————41✅✅✅—✅—✅——✅✅————✅————✅——————————
📋 stash⭐769 · 2026-04-24Go binary, 8-stage consolidation pipeline, causal link + hypothesis engine769GoApache 2.0✅2026-04-2433Local binaryPostgres+pgvectorMCP——✅—1——————go installfreeEpisode + Fact + Context✅——————✅———✅✅—7—✅————✅—11✅———✅—✅✅—✅✅—✅✅—✅—✅——✅✅—————————
📋 context-infra⭐772 · 2026-03-16Memory + rules + skills + scheduled observations772PythonMIT—2026-03-1623Local PythonMarkdown filesMCP——✅—1✅—————setup_guide.mdfreeContext entry————————————✅—4✅✅——————21———————✅✅—✅✅—✅✅✅—✅——✅——————————
📋 Wax⭐803 · 2026-01-20Swift/Metal, Apple Silicon, single-file, sub-ms RAG, EAV entities, hybrid FTS+HNSW803SwiftApache 2.0✅2026-01-2017Single file (Apple Silicon)Single file (frame container)Library+MCP——✅—1——————swift buildfreeFrame entry✅—————————————6✅✅✅———✅—11———————————————✅————✅✅—————————
📋 deja-vu⭐1.1k · 2026-07-01Retroactive local memory for 34 coding agents — indexes existing session transcripts, no capture step, no LLM calls, serves via MCP/hooks1111GoMIT✅2026-07-0158Local CLI, single binaryCustom append-only log + postings indexMCP + hooks + CLI + opencode plugin—✅✅✅0————✅✅curl | sh / brew / npm / go installfreeMessage record (verbatim transcript text, redacted)——✅—————✅✅—✅✅✅6✅✅✅———✅✅613✅✅———✅✅—✅✅———✅—✅✅✅✅✅✅—✅✅✅✅h@1=0.70h@1=0.85—~200× vs grep✅
📋 token-savior⭐1.2k · 2026-03-30FTS5+vector hybrid RRF, Tree-sitter code graph, Thompson-sampled persona lattice1159PythonMIT—2026-03-3028MCP serverSQLite+FTS5+sqlite-vecMCP—✅✅—1——————pip installfreeObservation (18+ fields)——————————————14✅✅✅—✅———61✅✅✅✅✅✅✅✅—✅————✅✅—————————————-77%—
📋 LightMem⭐1.2k · 2025-05ICLR 2026: lightweight memory-augmented generation with adaptive gating1182PythonMIT—2025-053Research libraryMemory tokens (model)Library——✅—1——————pip installfreeMemory token——————————————3————————11——————————————————————————————✅
📋 mem9⭐1.2k · 2026-01TiDB Cloud backed, hybrid search, multi-agent spaces, conflict resolution, 6 platforms1220TypeScriptApache 2.0—2026-0133Cloud/Self-hostTiDB CloudMCP+Hooks—✅✅✅3————✅✅npx installfreemiumMemory entry (14 fields)——✅—————✅——✅——14✅✅✅—————31—✅————✅✅———————✅✅✅————✅✅——58.84———✅
📋 nocturne⭐1.4k · 2025-12-25Rollbackable, visual LTM for MCP agents, no vector RAG, 9 MCP clients1372PythonMIT—2025-12-2523Local MCP serverSQLiteMCP—✅✅—1——————pip installfreeMemory entry————✅————————✅5✅———————11———————————————✅✅✅✅✅✅✅✅——✅—————
📋 LangMem⭐1.7k · 2025-02LangChain memory toolkit — library only, no CLI/plugin, requires API keys1692PythonMIT—2025-023LibraryPluggable backendsLangChain/LangGraph————1——————pip installfreeMemory namespace——————————————3—✅——————11———————✅———————————————————————
📋 opencode-mem⭐1.7k · 2026-01-10OpenCode plugin, local vector DB, dashboard, dedup, persona extraction1704TypeScript?—2026-01-1015OpenCode pluginLocal vector DBPlugin (OpenCode)—✅✅—1——————npm installfreeVector entry————————✅—————10—✅—————✅31——————✅——✅————✅——✅—————————————
📋 mcp-memory-service⭐1.9k · 2024-12-26Persistent memory for AI agent pipelines, REST API + MCP + knowledge graph + auto-consolidation1928PythonApache 2.0—2024-12-2668Local/Docker/CloudflareSQLite-vec+Cloudflare+MilvusREST(76ep)+MCP+OAuth2+CLI—✅✅✅5✅———✅✅pip installfreeMemory (text+metadata)✅—✅——✅✅✅✅—✅✅—✅28✅✅✅———✅✅76✅✅✅—✅—✅✅✅✅✅✅✅✅—✅✅✅✅✅✅✅✅————86.0 (sess) / 80.4 (turn)——✅
📋 memanto⭐2.3k · 2026-03Vector-only (no graph), 13 memory types, 5 search modes, LoCoMo 87.1% SOTA2303PythonMIT—2026-0328Local/CloudVector DBMCP+SaaS——✅—1——————pip installfreemiumMemory (13 types)————————✅————✅6—✅—————✅51—✅—————✅———————✅✅✅✅✅✅✅✅✅——87.189.8——✅
📋 memsearch⭐2.6k · 2025-08Cross-platform semantic memory: hybrid RRF, SHA-256 dedup, 3-layer progressive recall, ONNX bge-m32570PythonApache 2.0—2025-0818Local CLI+MCPMilvus+MarkdownMCP+CLI——✅—9——————pip installfreeText chunk (no learning abstraction)——————————————9✅✅✅—————31———————✅—✅—————✅✅✅————✅———————✅
📋 MemMachine⭐3.2k · 2025-08Agentic retrieval with ChainOfQueryAgent multi-hop, 3-layer memory, Neo4j+PG3229PythonApache 2.0—2025-0832Server+SDKNeo4j+PostgreSQL+pgvectorMCP+SDK—✅✅✅1————✅—docker composefreeMemory (3 layers)✅——————✅✅———✅—10—✅✅—————21——————✅✅✅✅————✅✅————✅—✅———————✅
📋 MIRIX⭐3.4k · 2025-096-type memory architecture, LoCoMo 85.38% SOTA, 99.9% storage reduction, best extraction pipeline3449PythonMIT—2025-0940Self-hostedPostgreSQL+pgvectorREST API—✅✅✅1————✅—docker composefreeMemory (6 types)✅✅✅—————✅———✅—10✅✅—————✅61✅✅——✅——✅✅✅✅✅✅✅✅———————————85.38———✅
📋 Acontext⭐3.7k · 2025-10Agent Skills as a Memory Layer — auto-captures learnings as Markdown skill files, progressive disclosure retrieval3697JS/TS/Go/PythonApache-2.0—2025-1022Cloud + Docker self-hostPostgreSQL+pgvector+Redis+RabbitMQ+S3SDK+REST—✅✅—3————✅✅curl | shfreemiumSkill file (Markdown)——————✅———————12✅———————44——————✅✅—✅—✅——✅✅——————✅——————~45% tool calls—
📋 MemoryBear⭐4.2k · 2025-06Bio-inspired 6-engine memory: perception, graph, hybrid search, Ebbinghaus forgetting, reflection4167PythonApache 2.0—2025-0655Local serverNeo4j+ElasticsearchREST API+MCP—✅✅✅1————✅✅docker composefreeMemory node (12+ fields)✅—✅————✅✅—✅✅✅✅12✅✅✅✅——✅✅31✅✅✅—✅✅✅✅✅✅✅✅✅—✅———————————————✅
📋 memory-lancedb-pro⭐4.5k · 2025-11LanceDB plugin: 6-stage hybrid pipeline, Weibull decay, dreaming sidecar, multi-scope4454TypeScriptMIT—2025-1115OpenClaw pluginLanceDBOpenClaw plugin——✅—1——————npm installfreeMemory entry (L0-L2)————————————✅—17✅✅✅—————31✅——————✅———————✅——————✅————————
📋 OpenMemory⭐4.5k · 2025-10HMD v2 cognitive engine: 5-sector decay, temporal KG, waypoint graph, document ingestion4485PythonApache 2.0—2025-1025Self-hostedVector DBREST API+MCP——✅—1————✅—docker composefreeMemory (5 sectors)——————————✅—✅✅13—✅—————✅21✅—————✅————————✅✅——✅✅✅———✅—————
📋 m_flow⭐4.5k · 2026-02Bio-inspired Graph RAG, 4-layer cone, graph-routed path-cost search, LoCoMo 81.8% #14497PythonApache 2.0—2026-0223Local PythonGraph DBMCP—✅✅—9——————pip installfreeGraph node (4-layer cone)✅———————————✅—8✅✅✅✅————51———————✅—✅—————✅————✅—✅———81.889.0——✅
📋 obsidian-mind⭐4.8k · 2026-02-28Obsidian vault template, markdown-native memory, QMD hybrid RRF search4788TypeScriptMIT—2026-02-2822Obsidian vault + npmMarkdown + QMD/SQLiteCLI + MCP—✅✅—1——————npm installfreeMarkdown note (wiki)——————————————4✅✅——————21———————————————✅✅✅✅✅✅✅✅——✅—————
📋 ByteRover⭐5.0k · 2025-06-19Context tree with git-like VC, strongest benchmarks (LoCoMo 96.1)4961TypeScriptElastic 2.0—2025-06-1925Local CLI / CloudSQLite+Context treeMCP+REPL—✅✅—20——————npm install -gfreemiumContext node (tree)——✅——————————✅6✅———————11✅✅—————✅✅✅—————✅✅———✅✅————96.192.8——✅
📋 engram⭐7.0k · 2026-02-16Go binary agent memory with conflict surfacing and TUI6974GoMIT✅2026-02-1638Local bin / Cloud (opt-in)SQLite+FTS5MCP+Hooks (19)—✅✅—2————✅✅brew installfreeMemory (What/Why/Where/Learned)——✅————✅———✅—✅6✅——————✅42—✅✅———✅——✅—————✅✅✅✅—✅✅——✅✅—————
📋 Honcho⭐7.4k · 2024-04Memory library for stateful agents, theory-of-mind reasoning, multi-agent capable7424PythonAGPL-3.0—2024-0418Server + SDKPostgres+pgvectorSDK + REST + MCP—✅✅✅3——————docker composefreeUser-scoped memory✅——————✅——————5✅✅——————31———————✅———✅——✅✅———————————————
📋 ai-memory⭐8.7k · 2026-05-21Git-versioned markdown wiki, zero LLM mode, cross-agent handoffs8687RustMIT✅2026-05-2132Local binaryGit wiki (md)MCP+Hooks—✅✅—1——————?freeWiki page (md)————————————✅✅10✅✅——————31✅✅—————✅———✅———✅✅✅✅—✅—✅—✅✅—————
📋 MemOS⭐11.7k · 2025-10Self-evolving memory OS, L1/L2/L3, MemCubes, time machine, strong benchmarks11668PythonApache 2.0—2025-1027Cloud/Self-hostNeo4j+Qdrant+RedisAPI+Plugin—✅✅—1——————docker composefreemiumMemCube————————————✅✅19✅✅✅—————31—✅————✅✅✅✅✅———————————✅✅——75.80+40.43 (rel.)+40.75 (rel.)35.24%✅
📋 EverOS⭐13.3k · 2025-10-28Self-evolving agent memory with evaluation framework13322PythonApache 2.0—2025-10-2823Lib/MCPVector DBMCP——✅—1——————?freeMemory entry——————————————8✅✅✅—————11——————✅✅———✅✅—✅✅——✅—✅—✅———93.0583.00——✅
📋 memU⭐14.4k · 2025-09Always-on memory for 24/7 proactive agents, 3-tier layered, LoCoMo 92.09%, 5 modality preprocessing14387PythonMIT—2025-0917Library+MCPVector DBMCP+SDK——✅—3——————pip installfreeMemoryItem (3 tiers)✅———————————✅—8—✅——————11——————✅✅✅——————✅——————✅———92.09———✅
📋 Memvid⭐16.6k · 2025-05-27Single-file memory (.mv2) with Smart Frames and time-travel16570RustApache 2.0—2025-05-2717Lib/Local fileSingle .mv2 fileSDK——✅—1——————?freeSmart Frame✅—✅—————————✅✅9✅✅✅————✅11——————————————————————————————✅
📋 Memori⭐17.0k · 2025-07-24Agent-native memory (captures execution, not just conversation)17037PythonApache 2.0—2025-07-2415Cloud / BYODBCloudSDK/MCP—✅——1——————?freeMemory entry——————————————6✅✅——————11———————✅———————✅————✅—✅✅——81.95——95% fewer✅
📋 Letta⭐25.0k · 2023-10Stateful agent platform, 3-tier memory (core/recall/archival), sleep-time dreaming24994PythonApache-2.0—2023-1020Server + SDKPostgres + vector + gitSDK + REST—✅✅✅1——————docker composefreeMemory block————————————✅✅10✅✅——————21——————✅✅——————✅✅——————————————✅
📋 TencentDB-AM⭐26.1k · 2026-04-07Mermaid symbolic memory, L0→L3 pyramid, 61% token reduction26051TypeScriptMIT—2026-04-0717Plugin (OpenClaw)SQLite+sqlite-vecPlugin hooks——✅—1——————?freeAtom/Scenario/Persona————————————✅—12✅✅✅—————11———————✅—✅————✅———————✅✅————76.061%—
📋 agentmemory⭐29.1k · 2026-02-2553 MCP tools, 12 hooks, 4-tier lifecycle, 3-way RRF, pi native29071TypeScriptApache 2.0—2026-02-2543Local server (npm)SQLite (0 external DBs)MCP + Hooks (12)—✅✅✅3————✅✅npm install -gfreeMemory entry (structured, confidence-scored)✅———————————✅—8✅✅✅—————31✅✅————✅✅—✅—————✅✅✅✅✅✅—✅✅✅✅—95.2—92% fewer✅
📋 gbrain⭐30.5k · 2025-07Garry Tan's production agent brain: zero-LLM KG, gap-aware synthesis, PGLite, dream cycle30471TypeScriptMIT—2025-0735Local (PGLite WASM)PGLite+pgvectorMCP+Hooks—✅✅—1————✅—npx installfreeMemory entry✅——————✅✅——✅✅—12✅✅✅—————21—✅✅———✅✅—✅✅————✅————✅—✅✅———————
📋 Supermemory⭐31.0k · 2024Cloud memory API, hybrid RAG+Memory, #1 benchmarks, Chrome ext+MCP+plugins31049TypeScriptMIT—202447Cloud (Cloudflare Workers)Hyperdrive (PG)+KV+VectorMCP+API+Plugins—✅——1——————npx install-mcpfreemiumMemory entry (versioned, ~23 fields)✅—✅————✅✅——✅✅✅23✅✅✅—————32✅✅✅—✅—✅✅✅✅✅✅——✅✅—✅——✅✅✅✅———81.6———
📋 Cognee⭐31.3k · 2023-08-16Memory control plane with remember/recall/forget/improve API31261PythonApache 2.0—2023-08-1655Lib/CloudGraph+VectorMCP+API+Hooks—✅✅✅11✅———✅✅?freeFact (graph+vec)✅✅✅—————✅——✅✅✅14✅✅——✅—✅✅84✅✅✅———✅✅—✅✅✅——✅✅✅✅——✅—✅✅———————
📋 Graphiti⭐31.3k · 2024-08-08Temporal knowledge graph engine (powers Zep)31344PythonApache 2.0—2024-08-0825LibraryGraph DBLibrary——✅—1——————?freeFact (graph node)✅———————————✅✅8✅✅✅—————21—✅————✅✅—✅—✅✅——✅————✅——————————
📋 OpenViking⭐39.1k · 2026-01-05ByteDance context DB, filesystem paradigm, L0/L1/L2 tiers, LoCoMo 82%39075PythonAGPL-3.0—2026-01-0528Self-hostedContext DB (filesystem paradigm)API—✅✅—1————✅✅pip installfreeContext node (filesystem tree)———————✅————✅—6✅✅✅—————33———————✅✅✅—————✅✅—————✅✅——82.1——91%✅
📋 hindsight⭐44.1k · 2025-10Self-improving agentic memory, 91.4% LongMemEval, reflect engine, web dashboard44126PythonMIT—2025-1020SDK/CloudVector+graph+temporalPython API+MCP—✅✅—1——————pip installfreemiumMemory entry✅—✅————✅—————✅7✅✅✅—————41———————✅———————✅———————————91.4——✅
📋 Nanobot⭐48.7k · 2025-0543.3k star AI agent framework — Dream is one subsystem, NOT dedicated memory48717PythonMIT—2025-0512Agent frameworkFilesystemAgent loop——✅—1————✅✅pip installfreeDream memory entry———————✅—————✅7————————12———————✅———✅———————————————————
📋 MemPalace⭐59.4k · 2026-04-05Verbatim storage, palace metaphor, 96.6% LongMemEval raw retrieval59378PythonMIT—2026-04-0515Local CLIChromaDB (pluggable)CLI + MCP——✅—1————✅—uv tool installfreeVerbatim text (no summarization)✅—————————————5—✅✅—————12———————✅———————✅——✅———————88.996.6——✅
📋 Mem0⭐66.4k · 2023-06-20Memory-as-a-Service platform with best published benchmarks66413PythonApache 2.0—2023-06-2017Lib/Self-host/CloudQdrantAPI/SDK—✅——16——————pip installfreemiumMemory (text)✅—————————————7✅✅✅—————11——————✅✅———————✅————✅—————91.694.8——✅
📋 claude-mem⭐95.1k · 2025-08-31Hooks-based observation capture with progressive disclosure95072TypeScriptApache 2.0—2025-08-3127Local CLISQLite+ChromaHooks (5)—✅✅—1—✅——✅✅npx installfreeObservation (text)——————————————4✅✅—————✅31———————✅———————✅✅✅✅✅✅—✅————————