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 NotebookLM MCP at 72, pdf-mcp at 72, GitHits at 72. 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.
Best of
Full ranking
Every server that matches this ranking, ordered by trust score.
VaneUI React component docs and per-component prop tables for AI coding agents.
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 18 days ago.
Publishes what an AI made — a page, a markdown or PDF doc, or a whole site — to a live HTTPS link.
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 20 days ago.
Codebase understanding with exact evidence, qualified on every read and re-aligned on change.
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 4 days ago.
Local procedural knowledge with spells, notes, and revision 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 10 days ago.
Nifra docs, runnable examples, and API types as an MCP server for any AI assistant.
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.
Literature search, GB/T 7714/APA citations and BibTeX via Crossref, OpenAlex, Semantic Scholar.
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.
Google Docs as MCP tools: read, edit, suggest and comment on documents.
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 5 days ago.
MCP server for the Google Docs API: read and edit documents, styles, tables, images, comments.
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.
Google Drive and Docs for agents: search, read and write a local copy. Sign in with drive first.
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 17 days ago.
Diffbot MCP — Knowledge Graph company enrichment + web content extraction (diffbot.com)
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.
ALicenseCQualityAMaintenanceLicense: A. MIT is a permissive open source license.Quality: C. 64/100 for listing completeness. Lost points: no README, 12 of 40 tools barely described, short summary.Maintenance: A. Last commit or release 12 days ago.
STEM study tools: LaTeX/circuit figures, math and unit checks, PDF/HWP reading, exam/slide export
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 3 days ago.
Create and edit PDFs: text, Markdown, tables, metadata and pages, with Japanese font embedding.
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.
Company-brain knowledge graphs: confirmed claims cite sources, and decisions get revisited
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 8 days ago.
MCP server for GroupDocs.Parser — extract text, images, metadata, tables, barcodes via AI.
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 23 days ago.
Biotech catalysts: trials, FDA decisions (PDUFA, AdCom, approvals, CRLs), NIH, PubMed, SEC, EMA.
Registry
ALicense–Quality–MaintenanceLicense: A. Apache 2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Your coding agent writes the user docs from your codebase, screenshots included.
Registry
ALicense–Quality–MaintenanceLicense: A. Apache 2.0 is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Check that a quoted passage appears word for word in its cited source (URL, DOI or PubMed ID).
Registry
ALicense–Quality–MaintenanceLicense: A. MIT is a permissive open source license.Quality: Not graded. No README or tool list has been captured yet.Maintenance: Not graded. No commit or release date has been recorded.
Self-hosted git-native knowledge base with an MCP endpoint your AI reads, writes and rewinds
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 9 days ago.
Search and read Robinhood Chain and EVM RPC/API docs. No account, API key or local install.
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 5 days ago.
Search and read the Redocly product docs, guides and blog on redocly.com, and report a wrong page.
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.
Query AI knowledge, essays, Labs, benchmarks, Physical AI robotics, Homeric data and claims.
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 20 days ago.
Self-hosted documentation server: each project's indexed docs as its own MCP endpoint.
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 6 days ago.
–LicenseCQuality–MaintenanceLicense: Not graded. No license is recorded for this server.Quality: C. 60/100 for listing completeness. Lost points: no README, short summary, no docs link.Maintenance: Not graded. No commit or release date has been recorded.
