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 memory-boost at 65, DeepDNA local at 65, ChatGPT Ads 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.
Token-optimized HTTP client for LLMs: fetches any URL as clean markdown. CLI and MCP server.
Registry
ALicenseAQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: A. 95/100 for listing completeness. Lost points: short summary.Maintenance: A. Last commit or release 14 days ago.
Drive devices and APIs from their W3C Thing Description. You gate every operation.
Registry
ALicenseDQualityBMaintenanceLicense: 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: B. Last commit or release 14 days ago. Down one letter for 37 open issues against 16 stars.
Memory database for LLM agents — persistent semantic + keyword memory, project namespacing, served o
Registry
CLicenseDQualityAMaintenanceLicense: C. AGPL-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 28 days ago.
Local-first memory for AI coding agents: shell history with exit codes, git diffs, docs, MCP.
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 43 days ago.
CLicenseDQualityBMaintenanceLicense: C. GPL-3.0 is a strong copyleft license: derived works must use the same license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: B. Last commit or release 17 days ago. Down one letter for 34 open issues against 15 stars.
Access Nordic business registries (Norway, Denmark, Finland, Sweden). 23 tools.
Registry
ALicenseAQualityAMaintenanceLicense: A. Apache-2.0 is a permissive open source license.Quality: A. 86/100 for listing completeness. Lost points: 5 of 23 tools barely described, short summary, no docs link.Maintenance: A. Last commit or release 20 days ago.
Keyless-first MCP: 153 tools for US federal + state/local (SLED) contracting, spending & regulation
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 15 days ago.
Agents can't skip steps: runs gated stepfiles on the client's own model.
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 9 days ago.
Persistent memory for AI assistants: store, search, and connect knowledge across conversations.
RegistryRemote
ALicenseCQualityBMaintenanceLicense: 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: B. Last commit or release 23 days ago. Down one letter for 31 open issues against 12 stars.
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 13 days ago.
Conta Azul ERP MCP — sales, customers, finance and NF-e via OAuth 2.0. Read + write, 35 tools.
RegistryRemote
ALicenseDQualityBMaintenanceLicense: 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: B. Last commit or release 35 days ago.
Read and write your local Zotero 10 library. No plugin, no zotero.org API key, no cloud.
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 20 days ago.
Runtime constitutional verification for AI answers — claim reasoning, ECS, red team, audits.
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 11 days ago.
Codebase memory for AI agents: an AST index plus agent-written notes that self-stale.
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 12 days ago.
Bidirectional AI agent collaboration — spawn and communicate with any agent CLI
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.
MCP server for dossier automation standard - enables LLMs to discover, verify, and execute dossiers
Registry
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 15 days ago. Down one letter for 53 open issues against 10 stars.
Live threat intel for agents: incidents, actors, CVEs with KEV/EPSS, ransomware leak-site victims.
RegistryRemote
CLicenseDQualityAMaintenanceLicense: C. GPL-3.0 is a strong copyleft license: derived works must use the same license.Quality: D. 48/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 25 days ago.
Multi-model consensus: 2-6 frontier LLMs answer, an independent judge synthesises one answer.
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 42 days ago.
Book real travel from your agent — flights, hotels & activities behind a price-gated checkout.
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 14 days ago.
–License–Quality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Cross-LLM persistent memory: store context once, recall it from any AI model.
RegistryRemote
–License–Quality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Open-source MCP memory server. Persistent, searchable, tiered memory across sessions.
Registry
–License–Quality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Authority-weighted memory graph for AI agents with conflict detection and semantic search.
Registry
–License–Quality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Shared, persistent memory for AI agents — works with Claude, Kiro, Cursor, or any MCP client.
Registry
–License–Quality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
