security checks
alexar76/warden
Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.
SeedBase Test Data
marcelglaeser/seedbase-node
Generate realistic, FK-consistent synthetic test data for your databases from your AI assistant.
seekrit (local crypto plane)
mileszim/seekrit
Zero-knowledge secrets manager — local crypto-plane MCP server: decrypts and injects secrets.
Sefaria
pipeworx-io/mcp-sefaria
Sefaria MCP — the free digital library of Jewish texts. Fetch any passage (Torah, Talmud, Mishnah…
Selectic
selectic-ai/selectic-mcp
AI agent that calls, texts & emails businesses for you, then returns transcripts and replies.
send0
send0-dev/send0-v2
Email inboxes for AI agents: create an address, wait for codes and links, send and reply in threads.
Sendinel
kmdesle/sendinel-ai
AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.
Sendora
se.sendora/mcp
Sendora's docs and API for coding agents: send test mail, read the log, set up webhooks.
SendShort
ai.sendshort/sendshort
Turn long YouTube videos into shorts and music videos, and schedule posts to TikTok and YouTube
Sentinel Hub
pipeworx-io/mcp-sentinel-hub
Sentinel Hub MCP — satellite / earth-observation statistics as JSON (sentinel-hub.com).
Seo Ai Visibility
pipeworx-io/mcp-seo-ai-visibility
SEO AI-Visibility MCP — does brand X appear in an LLM's answer (GEO / AI-SEO) via DataForSEO AI…
Seo Backlinks
pipeworx-io/mcp-seo-backlinks
SEO Backlinks MCP — backlink intelligence via DataForSEO Backlinks API (dataforseo.com). Completes…
Seo Competitors
pipeworx-io/mcp-seo-competitors
SEO Competitors MCP — domain ranked keywords via DataForSEO Labs (dataforseo.com)
Seo Keywords
pipeworx-io/mcp-seo-keywords
SEO Keywords MCP — search volume & difficulty via DataForSEO Labs (dataforseo.com)
SEOAsist
com.seoasist/mcp
SEO audits, AI fix PRs, rank tracking, blog content and AI-search visibility for your sites.
Seoul Data
pipeworx-io/mcp-seoul-data
Seoul Open Data MCP — city data for Seoul via the Seoul Open Data Plaza API (openapi.seoul.go.kr).…
Services
bitcompare/services
Crypto yield data for AI agents: lending, savings, staking, borrowing & stablecoin rates. 18 tools.
Settled
tools.settled/settled
Check x402 endpoints before your agent pays: payTo, paid test purchases, payee and buyer reports
Shardflux
dev.shardflux/mcp
Persistent cloud workspaces for AI agents: run commands, edit files, use git and a browser.
Share
com.htmlradar/share
Send a web page to specific people, control who opens it, see how it was read, and update it.
Shiftyasan Shift Scheduling
shiftyasan/mcp-server
Generate optimized work shift schedules from staffing demand, availability and fairness rules.
Shipeasy
shipeasy-ai/shipeasy
Feature flags, A/B experiments, kill switches, dynamic config & i18n — Shipeasy MCP server.
ShipSafe
co.ship-safe/scanner
Independent security review for AI-built apps: exposed secrets, broken auth, unsafe data access.
Shopbuddy Plugin
tmill313/shopbuddy-plugin
Safe Shopify theme changes for AI agents: staging, validation, visual review, approval, rollback.
Shopgoodwill
pipeworx-io/mcp-shopgoodwill
ShopGoodwill auctions — active listings, closed auctions with final sale prices, and per-item…
Shopgraph
laundromatic/shopgraph
Clean product data from any URL. Schema.org + AI extraction. 200 free calls/month.
Shopify Change Intelligence
io.github.contentforge-press/shopify-intel
Monitor public Shopify stores: free snapshot, paid change intel, competitor reports via x402 USDC.
ShopTrueProfit Fee & Profit
PravinrajV/shoptrueprofit-fee-mcp
Etsy, eBay and Amazon FBA/FBM seller fees, profit, margin and target price, with sources.
ShowMeOnMap
FrankAIUser/showmeonmap
Ask in plain English, get a rendered, shareable map from live public data. 24 geospatial tools.
Sibfly
pipeworx-io/mcp-sibfly
SibFly — satellite-measured ground motion (subsidence / uplift) for any US address.
Siftable
execufunction-mcp/mcp-server
Siftable MCP server for governed work, knowledge, calendar, people, datasets, and Vault.
Simple Commenter
simple-commenter/mcp-server
Search, export, triage, and manage authorized website and asset feedback in Simple Commenter.
Simplefunctions CLI
spfunctions/simplefunctions-cli
Calibrated world model for AI agents. 40 tools: world state, markets, trading. Kalshi + Polymarket.
Simplepush
simplepush/simplepush-mcp
Send tasks and notifications to people's phones. Answers build a queryable knowledge base.
Singapore Business Directory
com.sgpdirectory/mcp
Singapore business directory. Search companies, UENs, and SSIC industry classifications.
Singapore Business Directory
com.sgpdirectory/singapore-business-directory
Singapore business directory. Search companies, UENs, and SSIC industry classifications.
Sitemap Stats
pipeworx-io/mcp-sitemap-stats
Sitemap Stats MCP — reads a domain's sitemap(s) and reports their STRUCTURE, not their content.…
Siteon
io.github.saucer-inc/siteon
Add forms, a CMS and hosting to static and AI-built sites: forms, inquiries, content, deploys.
SiteVerdict
siteverdict/siteverdict-mcp
Website audits for AI agents: GDPR consent, speed, WCAG, SPF/DMARC and AI-search readiness.
Sk Rpo
pipeworx-io/mcp-sk-rpo
RPO — Register právnických osôb, podnikateľov a orgánov verejnej moci (Register of Legal Entities…
Skills Hub
tinh2/skills-hub
Search & install 13,000+ AI agent skills from skills-hub.ai inside any MCP tool.
Skopik
skalerlabs/skopik
Your org's AI agents, tasks, runs, search, and brain files as MCP tools and resources.
Smarty
pipeworx-io/mcp-smarty
Smarty MCP — wraps Smarty's US Address Verification + US Property Enrichment APIs (smarty.com…
Softwareheritage
pipeworx-io/mcp-softwareheritage
Software Heritage MCP. The archive of public source code: which repositories have been archived…
Solradar
webios2026-byte/solradar-mcp
Solana meme-coin trust scores, rug-risk flags, and wallet analytics from SolRadar.
SomaCheck Vibecheck
io.github.Sensie-agents/vibecheck
Body language for your agent: a consented 3-second gesture, Aligned or Unaligned with confidence.
Sos Entities
pipeworx-io/mcp-sos-entities
sos-entities — state business-entity registries in one normalised shape (fleet #2867).
Sota Deploy
sota-deploy/mcp-server
Deploy web apps via AI agents with sota.io. 9 tools for deploy, logs, env, and more.