Find MCP servers that
actually work.

Shopify Catalog Monitor

io-github-dizzyvinci-shopify-catalog-monitor

Track price drops, stock-outs, restocks, and new/removed products across Shopify stores.

Shoptera Product Intelligence

io-github-shoptera-ai-product-intelligence

Search ~8.5M products from 2,500+ Central European e-shops. Semantic, keyword, GTIN lookup.

ShortPixel Image Optimizer

com-shortpixel-mcp-optimize

Optimize public image URLs via the ShortPixel SPIO API for AI agents

ShortsMonkey YouTube Outlier Research

io-github-cuilinhao-shortsmonkey-youtube-outlier-research

Find YouTube outliers, daily viral Shorts, and analyze video performance.

ShotAPI MCP Server

io-github-smallhandsome-shotapi-mcp-server

Screenshot and HTML render MCP server for AI agents

Shots

run-shots-shots

Create App Store screenshots, icons, ASO copy, localization, and revisions via hosted MCP.

Sichta Web

software-gigliotti-sichta-web

Check whether AI agents can read any website: 18 deterministic checks, each with its fix.

Sidecar

com-sidecardata-sidecar

Cross-tool context for your data stack. Search, lineage, and impact across warehouse and BI tools.

Sideways

com-aribadernatal-sideways

Unexpected questions and lateral thinking prompts to break through mental blocks. 86 strategies.

SigParser

com-sigparser-sigparser

Query contacts, companies, relationships, and communication metrics from SigParser.

SigVest

com-getsigvest-sigvest

Portfolio-aware finance tools: drift, risk, earnings, benchmarks, news, tax harvesting

Sigil

ai-tunnelmind-sigil

Programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify.

Siglume MCP Gateway

com-siglume-mcp-gateway

Access Siglume API Store tools and external MCP Router servers.

Signado MCP

io-signado-mcp

LinkedIn warm-lead discovery: list leads, find emails, and draft outreach from your AI tools.

Signal not Noise

ai-lifeisagame-signal-not-noise

AI-driven daily-focus todo app on your phone (max 3/day). View & add todos from any MCP client.

Signaliz

io-github-signaliz-signaliz-mcp

B2B lead generation, email verification, company enrichment, and agentic GTM Ops.

Signed

com-signed-signed

Angel investor portfolio, startup deal pipeline, and CRM data from your Signed account.

Signvoy

com-signvoy-signvoy

Send documents for e-signature, track signing status, and download signed PDFs. No API key required.

SiliconBridge

io-github-aataqi-boop-siliconbridge

Human-in-the-loop API for AI agents. CAPTCHA, OTP, KYC, and approvals by real humans.

SimSense

ai-simsense-mcp

Deploy sims to any screen. Control your displays with Claude.

SimStim

ai-simstim-mcp

Deploy sims to any screen. Control your displays with Claude.

Simbad

io-github-pipeworx-io-simbad

CDS SIMBAD — astronomical object database (~14M objects) via TAP/script

Similaridade de Identidade (Brasil)

io-github-mcp-dir-similaridade-br-mcp

Compares the provided data of a person in Brazil (CPF, name, birth, address) and returns the similar

SimplyWarmup

com-simplywarmup-simplywarmup

Hosted MCP server for inbox health, reporting, and warmup operations.

Simpson Strong-Tie Agent

io-github-srotzin-simpson-strong-agent-service

Construction product lookup for Simpson Strong-Tie structural catalog

Singapore Business Directory

com-sgpdirectory-singapore-business-directory

Singapore business directory. Search companies, UENs, and SSIC industry classifications.

Singapore Business Directory

com-sgpdirectory-mcp

Singapore business directory. Search companies, UENs, and SSIC industry classifications.

Singapore Payments (HitPay — PayNow QR)

app-wishpool-singapore-payments-mcp

Singapore payments for AI agents — PayNow QR via HitPay. Never holds funds.

Siren

ai-mysiren-siren

Deterministic visual marketing engine. Your agent plans, renders, and posts on-brand campaigns.

Site Rep MCP

io-github-nish3451-site-rep

Read-only Site Rep handoff: agent brief, pending work, first-customer receipt with payment evidence.

SiteVitals

io-github-tom18a-sitevitals

Monitor website health, uptime, SEO, security and performance via your AI assistant.

Sitelas

com-sitelas-sitelas

Build a real website from a chat — then run it: read messages, check traffic, publish changes.

Sitelemetry

com-sitelemetry-sitelemetry

Authorized security, SEO, AI visibility, integrations, accessibility and performance audits.

SitesPlaced

com-sitesplaced-sitesplaced

Build, edit, and publish real websites and online stores by chatting with your AI assistant.

Situação Cadastral

io-github-mcp-dir-situacao-cadastral-mcp

Check the registration status of a Brazilian CPF against official sources (name, status, birthdate,

Sivut SEC Crypto Filing Radar

co-sivut-pay-sec-crypto-filing-radar

SEC EDGAR crypto filing radar MCP with x402-paid Base USDC data URLs.

Skedra Whiteboard

io-github-moonriddim-skedra

Create, read and live-edit visual boards, Kanban plans, Gantt timelines and diagrams with AI agents.

Skew

site-skew-skew

Authored design service: one-of-one landing pages, pitch decks, and research-grounded briefs.

Skilder

ai-skilder-skilder

One place to build, share, and govern the skills and tools your AI agents use at work.

Skill History

io-github-pineapple-farm-skill-history

Track download history for 70,000+ agent skills. Search and get daily snapshots.

SkillDB

io-github-devchad-cmd-skilldb

A registry of 5,900+ peer-authored skills any MCP agent can search and load on demand.

SkillRepo

dev-skillrepo-skillrepo

Governed AI agent skills — one library, distributed to devs and exposed to remote agents over MCP.

Skills Board

io-github-tommybez-skillsboard

Search your team's shared AI-skill library, get install commands, and save skills from your agent.

SkillsSafe Security Scanner

com-skillssafe-scanner

AI skill security scanner. Detects prompt injection, credential theft, ClawHavoc. Free, no signup.

Skillsail

com-skillsail-mcp

Create, edit, translate, and export SCORM eLearning modules from a connected AI assistant.

Skycloak

io-skycloak-skycloak-mcp

Managed Keycloak from any MCP client: clusters, realms, apps, SSO, users, domains, audit events.

Skyvern

io-github-skyvern-ai-skyvern

AI-powered browser automation — navigate, click, fill forms, and extract data from any website.

Slack MCP Server

io-github-jtalk22-slack-mcp-server

Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.