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. 3564 published MCP servers match this ranking. The highest trust scores right now are Memnest at 65, THOR at 65, polymarket-news-mcp at 65. 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.
Open-source tax skills for AI across 134 countries.
RegistryRemote
CLicense–QualityBMaintenanceLicense: C. AGPL-3.0 is a strong copyleft license: derived works must use the same license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: B. Last commit or release 12 days ago. Down one letter for 290 open issues against 463 stars.
400+ ServiceNow tools across all modules — ITSM, CMDB, HRSD, CSM, SecOps, and more.
Registry
–LicenseDQualityBMaintenanceLicense: Not graded. No license is recorded for this server.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: B. Last commit or release 47 days ago.
ALicenseDQualityBMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: B. Last commit or release 2 months ago.
Turn your team's rules into checks your AI agent can't skip. Deterministic, no AI inside.
Registry
ALicenseDQualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 10 days ago.
Busca e cita o texto oficial de mais de 1,2 milhão de normas brasileiras (ctresb/leis).
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 6 days ago.
Control Miro whiteboards with AI. 110 tools for boards, diagrams, mindmaps, comments, SVG.
Registry
ALicenseBQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: B. 78/100 for listing completeness. Lost points: 24 of 40 tools barely described, short summary, no docs link.Maintenance: A. Last commit or release 7 days ago.
Find memes and Chinese 表情包, and auto-place reaction images into articles, with license info.
RegistryRemote
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 11 days ago.
MemoryIndustry persistent memory MCP server: BM25+MMR retrieval and audit.
Registry
ALicenseDQualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 19 days ago.
Django admin models over MCP: CRUD, actions, history, autocomplete — capped by Django permissions.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 13 days ago.
CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics.
Registry
CLicenseDQualityAMaintenanceLicense: C. GPL-3.0 is a strong copyleft license: derived works must use the same license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 15 days ago.
Cognitive memory for AI agents — semantic recall, knowledge graph, and contradiction detection
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 16 days ago.
Memory for AI agents — MLX (Apple Silicon) or CPU (Linux), sqlite-vec + BM25, zero cloud.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 11 days ago.
Persistent knowledge graph MCP server for neurodivergent thinking. BM25 search, no cloud LLM.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 24 days ago.
MCP server bridging AI assistants to OpenAI Codex CLI for code analysis and review
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 40 days ago.
Strategic BDI reasoning engine for autonomous AI agents with spatial utility and replanning.
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 37 days ago.
CapMonster Cloud MCP server — AI captcha solver for reCAPTCHA, Turnstile & DataDome for AI agents.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 13 days ago.
MCP standards client for your own custodial SAIHM operator. Free start: @saihm/mcp-server-pro
Registry
ALicenseDQualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 29 days ago.
MCP server for the Pexels API: search & fetch stock photos, videos, and collections.
Registry
ALicenseDQualityBMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: B. Last commit or release 39 days ago.
Official DeepSeek MCP server for chat, completion, model listing, and balance endpoints.
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 21 days ago.
Exact polynomial checks, sparse expansion and verified rule memory. Local MCP tools, no model key.
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.
MCP server exposing Actual Budget accounts, transactions, budgets and reporting to LLM assistants.
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 15 days ago.
Persistent memory, coordination, and learning for AI agents. Local-first, 25 MCP tools.
Registry
ALicense–QualityBMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: B. Last commit or release 31 days ago.
Memory the human governs, on their own machine, plus what other coding agents here wrote.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 13 days ago.
Policy-based governance for AI agent tool calls. YAML policy, approval gates, audit logging.
Registry
ALicenseDQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: D. 43/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 24 days ago.
