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MCP servers, MCP clients and AI products submitted by the community.
Servers
Crowdhum - live audience polling
Phil Topness
Run live CrowdHum audience polls from your AI assistant. Agent Skills + MCP plugin (Claude + Microsoft 365 Copilot/Cowork), backed by mcp.crowdhum.com.
cz-agents — Czech & EU Due Diligence
martinhavel
Open-source Model Context Protocol servers for Czech government & business data: ARES, ČNB, EU+OFAC sanctions, ISIR insolvency, and a unified due-diligence aggregator.
Martin Havel
Nexez — Agentic Commerce
Flyger1an
Agentic-commerce MCP: search across merchants, fetch structured offer manifests, and dry-run checkout + negotiation before buying.
GrantIQ (UK/EU)
Anastasios Nezis
Eligibility-first UK & EU grant discovery — Eligible/Partial/Not eligible verdicts over 100+ official sources.
Data Market
al157
Data Market
alick zheng
Sigrank
SunrisesIllNeverSee
SigRank MCP — the yield cascade + live leaderboard as MCP tools any agent can call. On-device token scanner + tabbed TUI dashboard. npm i -g sigrank
Deric J. McHenry
Smspm
alesav
MCP server for sending SMS via SMSPM — use with Claude Desktop or any other MCP client
aleksandr savihhin
Poshkan Paper Trading
afrazja
Poshkan V2
Afraz Javanmardi
Starmeet
edestory
MCP server for Vedic astrology (Jyotish) — Kundali birth-chart preview, daily Panchang & Nakshatra tools for Claude/Cursor/AI assistants. Powered by star-meet.com
Vadim Arkhipov
Abscissa
KazKozDev
A safety-aware MCP server that lets AI agents manage Linear issues, projects, cycles, and dependencies.
Artem KK
ROS 2 Workspace Inspector
doer0312
Statically inspect and diagnose ROS 2 workspaces with AI agents—locally, safely, and without installing ROS.
杜旭光
Whois
KincaidYang
Self-hosted WHOIS/RDAP API and MCP server for domains, IPv4/IPv6, CIDRs and ASNs.
YANGJINZE
PlugRail Japanese Calendar
plugrail
Japanese holiday and business-day calculations using official Japan Cabinet Office data.
naokazuyokoo
Dayze
gohluke
Pay-per-call people + life-in-days knowledge API for AI agents (x402 on Base)
Threadctx
threadctx-dev
Shared memory MCP server for AI coding agents (Claude Code, Cursor). Free & local by default.
threadctx
Garmin Local MCP
anup-shesh
Local-first Garmin data warehouse with an analysis-grade MCP server. Sync once, analyze forever - even when the API is down.
Anup Sheshadri
Web Validator MCP by DigestSEO
AKzar1el
W3C HTML/CSS Validator and Technical SEO Audit MCP Server. Part of the DigestSEO (https://digestseo.com) suite.
Tommy
Marketplace
reasoning-services
Claude Code plugin for Reasoning∴Services — structured reasoning tools
price-watch
comparedge
MCP server: verified SaaS price-change history, watch-log for AI assistants, data by ComparEdge
KMT Devllm-cost
comparedge
MCP server: token cost math for LLM API calls, 69 models across 17 providers, prices verified by ComparEdge
KMT Dev
Cache Kit
studiomeyer-io
Leak-safe caching for the Model Context Protocol's SEP-2549 cache hints (ttlMs + cacheScope) — set them right server-side, and never serve a private result across users/tenants client-side.
Matthias Meyer - StudioMeyerOtel
studiomeyer-io
W3C Trace Context bridge for the Model Context Protocol — propagate traces through MCP _meta (SEP-414) and emit OpenTelemetry spans so Host → MCP server → tool → downstream shows up as one trace.
Matthias Meyer - StudioMeyer
Gmail MCP Server
ArtyMcLabin
A Model Context Protocol (MCP) server for Gmail integration in Claude Desktop with auto authentication support. This server enables AI assistants to manage Gmail through natural language interactions.
Arty McLabinSpec Migrator 2511
studiomeyer-io
MCP Spec 2025-11-25 migration toolkit: detect, diff, compatibility-matrix, plan, check. Foundation pillar by StudioMeyer (MCP Factory).
Matthias Meyer - StudioMeyerStateless Migrator
studiomeyer-io
MCP Spec 2025-11-25 -> 2026-07-28 RC migrator: scan + diff + patch + verify CLI. 8 detection rules. AST-rewrite via ts-morph. Foundation pillar by StudioMeyer (MCP Factory).
Matthias Meyer - StudioMeyerStdio Shellguard
studiomeyer-io
Defense-in-depth bundle for MCP stdio servers: drop-in guardExec/guardSpawn wrappers, AST audit CLI, reference MCP server. Closes the Ox-Security 200k-server stdio-RCE class (LiteLLM CVE-2025-69256). MIT, TypeScript, Node >= 20.
Matthias Meyer - StudioMeyerRce Guard
studiomeyer-io
Foundation Pillar 9: Layer-3 RCE defense for MCP servers via policy synthesis + behavioral CVE replay + cross-server canary tracking. v0.1 descriptor-only; v0.2 ships native enforcement.
Matthias Meyer - StudioMeyerTenant Context
studiomeyer-io
AsyncLocalStorage tenant + actor context propagation for MCP servers. Zero runtime dependencies, ESM-only, TypeScript.
Matthias Meyer - StudioMeyerTenant Pair
studiomeyer-io
Foundation library + reference MCP server for multi-user tenancy (couples, families, groups). Bi-temporal storage, conflict-resolver interface, SQLite + Postgres adapters, MCP-Spec 2025-06-18.
Matthias Meyer - StudioMeyerHook Conformance
studiomeyer-io
Test-harness CLI that audits any MCP server for Claude Code v2.1.118 mcp_tool lifecycle-hook readiness — idempotency, latency, determinism, side-effects, GDPR-doc. 56/56 tests, MIT, Foundation Build #3 of the StudioMeyer MCP Factory pillar set.
Matthias Meyer - StudioMeyer