MCP Server Directory

Mailcheer com.mailcheer/mailcheer

Email API + newsletters. 17 MCP tools. OAuth 2.1 PKCE or API key. EU-hosted (Hetzner + SES).

TrustGrowth ai.trustgrowth/trustgrowth

Site scores, audits, Search Console, keywords, competitors, authority and AI visibility tools.

MCP OAuth Connect com.gfbytes/mcp-oauth-connect

Ping-only MCP origin for claude.ai, Desktop, Cursor, and Grok Connectors.

Inspect PDF, Office, and iWork documents without rendering: counts, metadata, security signals

BAM Kaarsen catalog be.realbam/catalog

Search and browse the BAM Kaarsen candle catalog and white-label offering. Read-only, no auth.

StealthStack ARD Discovery ai.stealthstack/discovery

Search a public index of agents, MCP servers and skills found on the open web. Free, no auth.

Strix ai.strix/strix

AI pentesting: run scans, triage vulnerabilities, review PRs, manage schedules and assets.

BuiltOnRails io.github.nauman/builtonrails

Stack intelligence from real production Rails apps. Compare gems, scan a Gemfile.

guide-registry guide.lawfirmleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

GPT-6 Astra com.llmotions.farm/gpt-6-astra

Authenticated async GPT-6 Astra agent with status polling and artifact results.

Nostr-authenticated MCP server for secure YunoHost administration.

ForcedAlpha Supply Chain Graph com.forcedalpha/supply-chain

Evidence-aware supply-chain research. Authentication required: OAuth or a client-stored API key.

Author, validate and maintain a CRAYON-C4 architecture model — never write an invalid file.

Caybl ai.caybl/caybl

Hosted MCP server for GA4, Google Ads and Search Console. Google OAuth, nothing to install.

4,685 pre-production checks: security, performance, scale, integrations, post-launch, people.

MCP security firewall: stdio wrap proxy or inspection tools; zero runtime dependencies.

OrcaVault io.github.Keiko-Dev-LCAI/orcavault-mcp

Permanent on-chain memory for AI agents on Lightchain via a one-time unlock.

CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics.

SealGate jp.sealgate/sealgate

既存のログインにパスキーを追加する API (日本製)。プロジェクト・API キー・パスキー・監査ログを tool で扱う。管理画面のアカウントでログインしてつなぐ (OAuth)

Living Stack Agent Commerce io.github.equinoxaifinance-rgb/living-stack-commerce

Remote MCP for Living Stack offer discovery and buyer-authorized checkout preparation.

MarginGlow AI Signal com.marginglow/signal

Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents.

NDEX Pricing app.nd-x/ndex-pricing

Swiss market prices for video games and consoles, with provenance. Read-only, OAuth 2.1.

Governed Obsidian vault access: hybrid retrieval, Markdown-native memory, HITL confirmations.

AlphaKey IDaaS MCP Server — Manage SSO, MFA, users, apps, and security policies through AI IDE