MCP Servers 1,471

Vault Cortex

io.github.aliasunder/vault-cortex

A✓Verified

Standalone MCP server for Obsidian vaults — hybrid search, notes & files, memory, tasks, OAuth 2.1

Cortex

io.github.DanielBlomma/cortex

B✓Verified

Local repo context for coding assistants with semantic search and graph relationships.

Source Library

io.github.Embassy-of-the-Free-Mind/sourcelibrary

A✓Verified

Search 15K rare pre-modern texts translated to English: philosophy, religion, science, literature.

Source Library

io.github.Embassy-of-the-Free-Mind/source-library

A✓Verified

Search 22,000+ rare pre-modern texts with AI English translations, summaries, and 73K+ images.

Cartographer

io.github.BeppeTemp/cartographer

A✓Verified

Governance MCP server for agent-maintained knowledge bases (OKF): git-backed writes, search, lint.

Wet

io.github.n24q02m/wet-mcp

A✓Verified

Open-source MCP server for AI agents: web search, content extraction, and library docs.

Ng Blatui

io.github.anousss007/ng-blatui

A✓Verified

ng-blatui for Angular — search components, blocks, charts & templates and read their typed API.

Connapse

io.github.Destrayon/connapse

A✓Verified

Self-hosted knowledge backend for AI agents with hybrid search and MCP tools

Freeport Nostr

io.github.ptrinh/freeport-nostr

B✓Verified

Search Freeport Nostr events by kind, tag & geohash radius (rides, services, reputation).

Memwright

io.github.bolnet/memwright

B✓Verified

Embedded memory for AI agents with SQLite, pgvector, and Neo4j graph search.

Sourcegraph MCP Server

io.github.sourcegraph/mcp

C✓Verified

Sourcegraph code search, semantic search, go-to-definition, find-references, and diff search.

Sap Adt

io.github.yzonur/sap-adt-mcp

A✓Verified

Give Claude live access to SAP ABAP via ADT: read, search, check, test, and edit objects.

MailFathom

io.github.Krzysztof318/mailfathom

A✓Verified

Security-first, self-hosted email archive with search, cited answers, and sending for AI agents.

Pulse8 Ai Cortex Knowledge Vault

io.github.synpulse8-opensource/pulse8-ai-cortex-knowledge-vault

B✓Verified

Agent-native knowledge OS on Markdown: typed graph, hybrid search, and compiler over MCP.

Semantic Scholar MCP Server

io.github.smaniches/semantic-scholar-mcp

A✓Verified

MCP server for the Semantic Scholar API: search 200M+ papers, citations, authors, recommendations.

PapersFlow

io.github.papersflow-ai/papersflow

C✓Verified

Academic research MCP server for paper search, citation checks, graphs, and deep research.

Hashnet

io.github.hashgraph-online/hashnet

C✓Verified

Universal AI Agent Discovery - search 59,000+ agents across MCP, NANDA, A2A, OpenRouter

Companies House

io.github.aicayzer/companies-house

B✓Verified

UK Companies House public register: search companies, officers, ownership, filings and documents.

Pubcrawl

io.github.nickjlamb/pubcrawl

B✓Verified

PubMed & Europe PMC literature search, US/UK drug labelling, and clinical trials for AI assistants.

Federal Compass MCP

io.github.skivuha/federal-compass-mcp

A✓Verified

AI compass from private sector to federal career — USAJobs search, salary, KSA

Kylas CRM

io.github.kylastech/kylas-crm

A✓Verified

MCP server for Kylas CRM: create, search, and manage leads.

Mathlas

io.github.Archerkattri/mathlas

B✓Verified

Airtight math for AI agents: 3.68M-doc theorem search + numeric/Lean verification.

Calibre

io.github.caelum29/calibre-mcp

A✓Verified

Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes.

Velocirag

io.github.HaseebKhalid1507/velocirag

B✓Verified

Lightning-fast RAG for AI agents.