Knowledge servers search wikis, notes, and documentation so answers cite your own pages. The integration token decides what the agent can read, so share only the spaces it needs. 1982 published MCP servers match this ranking. The highest trust scores right now are RepoLens at 55, Oakstack at 55, Octri CLI at 55. 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 knowledge MCP servers is not a paid placement.
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Every server that matches this ranking, ordered by trust score.
Write-capable PDF toolkit MCP: 22 tools to read, create, render, encrypt, merge & fill PDFs.
Registry
ALicenseDQualityCMaintenanceLicense: 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: C. Last commit or release 3 months ago.
–LicenseDQualityAMaintenanceLicense: 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: A. Last commit or release 16 days ago.
IT Glue MCP server for MSPs — documents, flexible assets, semantic vector search, RBAC, and BYOK
Registry
ALicenseBQualityBMaintenanceLicense: A. MIT is a permissive open source license.Quality: B. 75/100 for listing completeness. Lost points: 9 of 9 tools barely described, short summary.Maintenance: B. Last commit or release 52 days ago.
Describe a house or upload a DWG/vector-PDF plan and get a walkable, editable 3D model.
RegistryRemote
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.
Open, source-cited knowledge base of Belgian insurance products: search, compare, verify, overlaps.
Registry
ALicenseDQualityCMaintenanceLicense: 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: C. Last commit or release 3 months ago.
Query a verified document collection: passages that answer a question, with their source.
Registry
ALicenseDQualityBMaintenanceLicense: 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: B. Last commit or release 57 days ago.
Search @imqueue docs and scaffold typed services & clients from your AI coding agent.
RegistryRemote
CLicense–QualityAMaintenanceLicense: C. GPL-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: A. Last commit or release 7 days ago.
Local-first MCP server for PlantUML and Mermaid diagrams with drift detection.
Registry
ALicenseCQualityAMaintenanceLicense: A. MIT 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.
Deterministic AI agent microtools, no accounts/API keys. fetch_extract: 98% token cut. 47 tools.
RegistryRemote
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.
Autonomous research engine: auto research from a prompt to a fully-cited academic paper via MCP
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.
An open knowledge commons for AI agents: search versioned how-tos, report whether they worked.
RegistryRemote
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 32 days ago.
Auto-document vibe coding sessions - collect, summarize, and publish
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 16 days ago.
Convert PDF bank statements into structured transactions, accounts, and balances.
RegistryRemote
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.
MCP server for Architectural Decision Records: navigate, author, validate, link, and analyze them.
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.
MCP server for GroupDocs.Comparison — compare, analyze, and inspect documents via AI agents.
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 50 days ago.
Self-hosted remote MCP server for Docmost CE: members read and edit the wiki as themselves
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 6 days ago.
Compress, merge, convert, OCR, redact and sign PDFs, generate new ones, and read them with AI.
RegistryRemote
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 6 days ago.
Public DNS, mail, TLS, and web diagnostics plus Looking Glass probes via remote MCP.
RegistryRemote
ALicenseCQualityAMaintenanceLicense: A. MIT 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 15 days ago.
Search WoW Forever items, recipes, abilities and quests with page links from Azeroth DB.
RegistryRemote
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.
Falsification-first citation auditor: existence, metadata, and claim-support checks via MCP.
Registry
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 43 days ago.
AI-native scheduling: check availability, book meetings, cancel and reschedule via MCP
RegistryRemote
ALicenseBQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: B. 75/100 for listing completeness. Lost points: 8 of 8 tools barely described, short summary.Maintenance: A. Last commit or release 28 days ago.
Generate PDF reports from Re:port Flow templates via Claude and other AI agents.
RegistryRemote
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.
MCP server for PDF generation, form filling, batch invoices and contracts. MIT, free tier, hosted.
RegistryRemote
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 17 days ago.
Crypto perp funding, spreads and listings, plus your own Arbitron cards, trades, PnL and docs.
RegistryRemote
ALicenseCQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: C. 60/100 for listing completeness. Lost points: short README, no listed tools, short summary.Maintenance: A. Last commit or release 19 days ago.
