AI and memory servers store what an agent learns, retrieve from vector indexes, or call other models. Note where embeddings are computed and where memories are stored before you connect one. 3487 published MCP servers match this ranking. The highest trust scores right now are Mirobody at 75, projectmem at 75, reddit-mcp-buddy at 75. The order is the published trust score: registry record, license, maintenance, popularity, documentation, and security signals. Featured slots, when an editor sets them, are labeled and do not change the score. Best AI and memory MCP servers is not a paid placement.
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Every server that matches this ranking, ordered by trust score.
Persistent memory for AI agents, for code, research and everyday life. Stale facts retire.
RegistryRemote
ALicense–QualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 20 days ago.
Persistent decision memory for AI agents: rationale, rejected approaches, and entity history.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 14 days ago.
MCP server for .NET memory profiling — in-process heap snapshots via EventPipe with leak heuristics
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 10 days ago.
Ask your agent about your own Apple Health data: 194 metrics, 22 tools, local, 0 deps.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 9 days ago.
Git-native memory for coding agents: gotchas, decisions and bookmarks as plain text in your repo.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 29 days ago.
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 12 days ago.
MCP gateway and company brain: 694 connectors (SAP, ERP, SQL), file search, memory and skills.
RegistryRemote
CLicenseCQualityAMaintenanceLicense: C. AGPL-3.0 is a strong copyleft license: derived works must use the same license.Quality: C. 66/100 for listing completeness. Lost points: no README, short summary.Maintenance: A. Last commit or release 10 days ago.
Persistent local memory for coding agents: temporal knowledge graph, procedural and episodic recall
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 11 days ago.
Persistent memory MCP server for Claude Code, Codex and OpenCode, stored locally in SQLite
Registry
ALicense–QualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 15 days ago.
MCP tools for Sema — eval, compile, build, format, and docs for a Lisp with LLM primitives.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 22 days ago.
Stable eight-tool MCP server for changed-UI assurance, authority-aware UI task context, and repair.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 10 days ago.
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 23 days ago.
Query U.S. Census Bureau data, variables, and geography via MCP.
RegistryRemote
ALicense–QualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 9 days ago.
Deep research assistant that checks its citations against the sources and keeps what it found.
Registry
ALicense–QualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 20 days ago.
Connect MCP clients to local Codex Bridge agents, projects, approvals and workspace tools.
Registry
ALicenseCQualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: C. 65/100 for listing completeness. Lost points: no listed tools, short summary.Maintenance: A. Last commit or release 19 days ago.
ADR drift detection, content safety, and decision memory for architectural decisions
Registry
ALicense–QualityBMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: B. Last commit or release 22 days ago. Down one letter for 25 open issues against 35 stars.
Standalone MCP server for Obsidian vaults — hybrid search, notes & files, memory, tasks, OAuth 2.1
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 8 days ago.
Generate Multisim circuits, run simulations, export data, and create experiment reports.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 12 days ago.
ALicense–QualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 21 days ago.
Sync public web sources into cited context packs for AI agents, RAG, and MCP clients.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 25 days ago.
Local-first biological memory for coding agents: recall, consolidation, and pre-action Guard checks.
Registry
ALicense–QualityBMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: B. Last commit or release 48 days ago.
Read-only Iran jobs: IranTalent, Jobinja, Jobvision side by side. Ads, companies, reviews, pay.
Registry
ALicenseBQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: B. 70/100 for listing completeness. Lost points: no README, short summary.Maintenance: A. Last commit or release 4 days ago.
Long-term memory and context fitting for agents, with no LLM in the loop. Local SQLite.
Registry
ALicense–QualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: A. Last commit or release 8 days ago.
ALicenseBQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: B. 81/100 for listing completeness. Lost points: 1 of 4 tools barely described, short summary, no docs link.Maintenance: A. Last commit or release 27 days ago.
