MCP servers
13,533 servers, most starred first.
Browse
Open EphemerisOpen EphemerisSub-arcsecond astrology and astronomy from the NASA JPL DE440 ephemeris: natal charts, synastry, transits, moon phases, eclipses, Human Design, Vedic, BaZi and astrocartography as 92 typed tools, with interactive charts that render inline in Claude and ChatGPT. Local via npx @openephemeris/mcp-server or hosted at https://mcp.openephemeris.com/mcp (OAuth). Also a one-click app in the ChatGPT app directory.openEuler MCP Serversopeneuler-mirrorA collection of MCP servers designed to enhance the interaction experience with the openEuler operating system.OpenhandleOpenhandleRead public Instagram, TikTok, X, and Reddit profiles, posts, comments, and metrics through MCP. Connect with OAuth or an API key.matapanopenletheGive scoped API access to Chatgpt or Claude to your repo via a docker container. isolated by default changes don't hit you repo unless you allow itOpen Medici Public Fellowship and Grant SearchOpen Medici Public Fellowship And Grant SearchRead-only remote MCP for finding and comparing public fellowships, grants, scholarships, prizes, and funded residencies.OpenRouterOpenRouterOpenRouter is a unified API gateway for accessing hundreds of LLMs from a single endpoint. Its remote MCP server gives assistants live access to OpenRouter data, including model catalogs, pricing, benchmarks and rankings, and account credits, and lets them send test messages to any model without leaving the editor.OpenSEOOpenSEOOpenSEO provides quality SEO data for keyword research, backlink analysis, rank tracking, site audits, analyzing your Google Search Console data. It's MCP server enables your AI agent to do tasks faster so you can focus on strategy.Open Task RelayOpen Task RelayOpen Task Relay provides free, bounded public-good tasks that autonomous AI agents can discover, complete, submit, and independently verify.ZammadZammadA powerful, production-ready Model Context Protocol (MCP) server for Zammad - the open-source helpdesk and ticket system.OpenTuskOpenTuskDecentralized persistent memory for AI agents — encrypted vault storage built on Walrus and Sui.OpenTweetOpenTweetManage XOpenZeppelin MCP ServersOpenZeppelinModel Context Protocol Servers Repository for OpenZeppelin ProductsOperatorNest toolsOperatorNestCalculate API and subscription costs, shared meeting times, recurring schedules and cron matches.Google FlightsopspawnAn MCP server to interact with Google Flights data for finding flight information.BazaaropspawnMCP server providing x402 micropayment-powered developer tools including screenshot capture, AI analysis, PDF generation, code security scanning, and dependency auditing via USDC payments on Base.Opus Growth | The MCP Connector for Ad PlatformsopusgrowthOpus Growth turns your AI assistant into a full ad operator across Google, Meta, Microsoft, TikTok and LinkedIn Ads — plus Google Analytics, Search Console, Business Profile, YouTube and Tag Manager. Audit accounts, cut wasted spend, build and optimize campaigns, and manage conversion tracking — all by chatting. Every change is previewed and applied only on your approval. Works with Claude, ChatGPT, Cursor, Windsurf, Codex and any MCP client. 200+ tools.OpZero Remote MCP BridgeOpZero Remote BridgeThe remote MCP bridge that lets any AI agent deploy, manage, and scale applications to Cloudflare, Netlify, or Vercel.OracleOracleOracle Fusion Cloud integration using OAuth2. Write operations disabled by default per integration. 1000+ tools covering Financials, Procurement, Inventory, Suppliers, Tax, and Workforce.OrbitOrbitOrbit is the operating system for your AI workforce — see, manage, and coordinate all your AI agents across Claude, ChatGPT, Cursor, Gemini, Manus and more via a 2-minute MCP setup.OrbOrbCookieless website analytics built for AI. Connect Claude, ChatGPT, Cursor, Grok, or any MCP client and ask what visitors did.com.orbylon/readinessCom Orbylon ReadinessFree readiness scan that tells any business what an AI agent can and cannot do with it: find it, verify it, pay it. Sixteen checks, a public report, and a domain-bound identity businesses can claim.OrbylonOrbylonCheck whether any business is ready for AI agents, and look up businesses that have proved who they are. Six tools: scan a site against sixteen readiness checks, look up a domain-bound identity key, read what a business sells, read the calls it sells, check a gift card or membership, and list verified businesses. No API key needed to read.ZeroMind (OrigoZero game engine)ZeroMind (OrigoZero Game Engine)Hosted MCP server for the Zero 3D game engine: Claude Code, Cursor or Codex search and install published content, build and run worlds live in the browser, execute Luau, capture screenshots, and publish playable games.Orion by GravityOrion By GravityOrion by Gravity provides insights from an autonomous AI analyst. Its connector brings analytical context into assistant workflows for asking business questions, exploring findings, and understanding data-backed recommendations.OrphographOrphographAnchor a file's SHA-256 fingerprint to Bitcoin via OpenTimestamps — the file never leaves the device.OrttoOrttoOrtto’s new MCP Server lets you connect your favorite AI assistant to Ortto. Once connected, your assistant can securely access customer data, audiences, and campaign insights from Ortto’s CDP and marketing automation platform.HyperpostosauerAn AI-native publishing engine for persona-driven content creation and multi-platform publishing.ClelposcarsterlingDiscover and rate 1,700+ MCP servers and AI agent skills with community ratings from real usage.Domain Name OSIROsir-IncDomain Name MCP that allows to search, register, renew, transfer, and manage domains, DNS, VPS, email, and websitesOso CloudOso CloudUnderstand, develop, and debug authorization policies in Oso Cloud.OTPBoxOTPBoxGives AI agents and test suites a disposable email inbox: create test identities, wait for mail, and extract OTP codes and verification links automatically over REST or MCP.Otter.aiOtter AiOtter.ai provides meeting intelligence through transcripts, summaries, and conversation records. Its connector gives assistants meeting context for extracting decisions, action items, and follow-up information.OttoOttoThe Otto MCP Server connects your LLM directly to Otto Webmaster, enabling external AI clients to execute CMS content updates, run automated SEO hygiene, monitor site health, and fetch analytics directly within your agent workflows.OurPay WalletOurpayAccount-owned crypto wallet for AI agents with OAuth, balances, transfers, swaps, bridging and Hyperliquid trading under owner-controlled permissions.OutageDeckoutagedeckLive status, incidents, and uptime history for 172 cloud and SaaS vendors via a keyless hosted MCP server.OutcomeCIOutcomeCICreate, validate, and manage agent-powered workflows across your team's tools with OutcomeCI.Outlit Customer ContextOutlitAIAuthenticated remote MCP server for querying Outlit customer context, timelines, facts, source evidence, semantic search, analytics views, and user-requested notifications.OutreachOutreachOutreach supports sales engagement and revenue-team workflows. Its connector gives assistants account, prospect, and outreach context for understanding pipeline activity, preparing communications, and improving sales execution.Outrings Web IntelligenceOutrings Web IntelligenceThe observation layer for AI agents. Outrings provides deterministic web intelligence through MCP, transforming websites into structured, evidence-backed signals that machines can inspect and trust.OutstandOutstandAn MCP server to connect and interact with all your social mediaOut to LunchOut To LunchDaily world briefing that tells AI assistants what's actually happening right now. Leaders, conflicts, deaths, economic data, holidays. Updated daily so they stop getting current events wrong.OverlayQAOverlayQARun WCAG accessibility and color-contrast audits on any URL and file dev-ready QA issues, straight from Claude Code, Cursor, or Windsurf. Free tier: 3 scans/day.SeenRelayovladonCooperative freshness infrastructure for AI agents. CHECK recent source-backed observations before repeating validation; OBSERVE what an agent independently encountered.MCP Source TreeowayoGenerates a JSON representation of a directory's source file tree, respecting .gitignore patterns.OwkinOwkinOwkin develops AI agents for biology, drug discovery, and clinical research. Its remote MCP connector currently powers HistoPLUS, which turns histopathology slides into queryable cell, spatial tumor, cohort, and survival-analysis insights.OwlChartOwlChartLive raw market data for any AI assistant: open interest summed across 13 exchanges, crypto liquidity magnets, order book walls, funding rates, liquidations, BTC and ETH spot ETF flows fund by fund, chart patterns with measured win rates, prices and candles for crypto, stocks, forex and commodities, tokenization and crypto regulation. 13 read-only tools, remote Streamable HTTP at https://owlchart.com/mcp, Trial with no account.OwlStatOwlStatInstagram analytics inside your AI assistant: follower stats, engagement, competitor benchmarks and reports via the official Meta Graph API.OwnerLMOwnerLMOwnerLM is an AI platform and managed service that gives real estate owners a private brain for their properties, with optional on-site compute that pays them back. It includes a property brain, AI agents, a self-updating CRM, a data room, and managed compute hosting.Ownware CatalogueOwnware CatalogueSearch 49 self-hosted business apps: prices, SaaS comparisons, guides, quickstarts, checkout links. Read-only, no key.Oxylabs AI StudiooxylabsAI tools for web scraping, crawling, browser control, and web search via the Oxylabs AI Studio API.