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. 1960 published MCP servers match this ranking. The highest trust scores right now are ITASCA MCP Server at 73, pubcrawl at 73, Anna's Archive at 73. 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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Full ranking
Every server that matches this ranking, ordered by trust score.
Scholarly papers, patents, books, standards and PDF conversion
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 9 days ago. Down one letter for 87 open issues against 2 stars.
AI agents use your API keys, SSH keys and wallets through a local broker, never holding them
Registry
CLicense–QualityAMaintenanceLicense: 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: A. Last commit or release 8 days ago.
Coda MCP server (MCP 2026-07-28): docs, pages, tables, rows, automations; writes or read-only
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.
Convert, compress & merge PDFs and 100+ file formats from any AI agent. By GuruPDF.
Registry
ALicenseCQualityCMaintenanceLicense: A. MIT is a permissive open source license.Quality: C. 61/100 for listing completeness. Lost points: no README, short summary, no docs link.Maintenance: C. Last commit or release 4 months ago.
MCP server for GLPI IT service management (tickets, assets, users, knowledge base)
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 4 days ago.
Look up ISO 32000 (PDF) clauses, requirements and terms. A reference, not a conformance checker.
Registry
ALicenseCQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: C. 63/100 for listing completeness. Lost points: no README, 4 of 12 tools barely described, short summary.Maintenance: A. Last commit or release 13 days ago.
Vendor documentation and changelog change-tracking as ACCOUNT SIGNALS (fleet #545).
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 9 days ago.
Confluence MCP — wraps the Confluence Cloud REST API v2 (OAuth)
RegistryRemote
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 9 days ago.
Lob MCP — US address verification, bulk verification, and autocompletion (docs.lob.com). BYO-key…
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 9 days ago.
OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)
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 9 days ago.
Wikidata MCP — wraps Wikidata API (wikidata.org/w/api.php)
RegistryRemote
ALicenseCQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: C. 66/100 for listing completeness. Lost points: no README, short summary.Maintenance: A. Last commit or release 9 days ago.
Wikifeed MCP — wraps Wikimedia Feed API (free, no auth)
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 41 days ago.
Wikipedia MCP — wraps Wikipedia REST API (free, no auth)
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 41 days ago.
Wikiviews MCP — wraps the Wikimedia Pageviews API (free, no auth)…
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 41 days ago.
PubChem MCP — NIH chemistry compound database (no auth)
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 9 days ago.
Open Targets MCP — disease/target/drug knowledge graph.
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 9 days ago.
OCR.space MCP — wraps the OCR.space API (ocr.space) for image/PDF → text OCR.
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 9 days ago.
Search, read, and edit any MediaWiki wiki. Works with Wikipedia, Fandom, and more.
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 5 days ago.
Connect AI assistants to your Tedix organization’s tasks, knowledge, apps, and results through MCP.
RegistryRemote
CLicense–QualityAMaintenanceLicense: 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: A. Last commit or release 17 days ago.
Official DSers MCP for AliExpress Dropshipping: product sourcing, publishing, orders, and tracking.
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 12 days ago.
MCP server for the Google Slides API: presentations, slides, text, shapes, images and tables.
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 7 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 9 days ago.
Letterhead PDF as digital stationery: prints Markdown without overprinting header, footer, or logo.
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 33 days ago.
Am fertigen PDF nachgemessen: DIN-5008-Briefe aus Markdown. Sollwerte aus Sekundärquellen.
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 6 days ago. Down one letter for 25 open issues against 1 stars.
