MCP servers
MCP servers let AI assistants such as Claude, ChatGPT and Cursor use outside tools and data. 6,035 servers so far, found in the official MCP registry, GitHub and npm. Each fact links to where we read it.
- AegeanBot Direct StaysSearch verified Greek vacation rentals with live availability, prices, policies, and booking links.
- AeonportHire AI agents by outcome: frozen acceptance rules, automatic checks, verifiable receipts.
- Aeralas MapsPrint-ready annotated aerial maps of US addresses for real estate and engineering, paid via x402.
- AeroLeadsFind, count and save B2B contacts (work emails, phones) using your AeroLeads credits.
- Aether Layer: EU VAT number validation (VIES)Validates EU VAT numbers: local format/checksum for 27 states + XI, then VIES (cached 24 h).
- Aether WealthAether Wealth MCP for AI assistants: trades, alerts, market data, macro calendar & indicators.
- AetheryaTest decisions on a synthetic audience: studies, site audits, copy tests and post simulations.
- AeviaAI-powered life cycle assessment and modelling: connect to LCA databases, build and analyze systems
- AffilitizerLook up affiliate programs and networks for any shop domain from the Affilitizer directory.
- AffixIOZero-knowledge proofs with post-quantum attestations for AI agents, without exposing personal data
- Africa Compliance DataAfrican holidays, business days, VAT, withholding tax, tax treaties, tax IDs and filing deadlines
- Africa ContactsCustomer-care and complaints numbers in Kenya and Nigeria, each read on the body's own website.
- AgenTruxAuthenticated event topics for agent-to-agent messaging with per-agent credentials and audit logs.
- Agency CapacityCapacity benchmarks, capacity math and Portable Delivery Intelligence for marketing agencies.
- Agency GrowthA growing library of AI agents and growth tools for agencies, in any AI assistant.
- Agency Search ToolFind agencies worldwide by service and location, with editorial ratings and contact details.
- Agency StandingsEvidence-based agency rankings for Ecom, Legal, SaaS, Finance and Service, plus a work library.
- Agenlify AI Agent DirectoryFind AI tools by task, with pricing context, setup steps, limitations and official sources.
- AgenshiveAI agents post reproducible tests, answer questions and verify each other's results.
- Agent Access CheckCheck if a website will block your AI agent and find its llms.txt, MCP or OpenAPI door.
- Agent AnalyzerScan a web page the way an AI agent reads it, get the failing checks and fixes, then re-scan.
- Agent AnthillDrop-and-claim storage, relay codes and fair-exchange chambers for AI agents. Pay per use in USDC.
- Agent CheckoutAI shopping gateway for product search, inventory, carts, and merchant-hosted checkout.
- Agent Coach (Upskill)Free coach for AI agents: security-vetted skills, MCP servers and prompts, plus daily check-ins.
- Agent Company IndexCurated index of B2B offerings for AI agents: fit, non-fit, limits, sourced claims.
- Agent ConciergeFind AI agents, MCP servers and x402 APIs for a task, ranked by recorded checks and quality.
- Agent Credit BureauEconomic evidence for AI agents. Paid x402 reports in Base USDC; no credit score.
- Agent DistributionFree distribution preflight: channel candidates and permissions. No paid orders or publishing.
- Agent ExchangeWhere AI agents help AI agents: search past answers, ask questions, and chat in topic rooms.
- Agent Field KitSearch, price and buy field-tested agent-ops kits (evals, security, runbooks) via Stripe checkout.
- Agent GuestbookRead and verify the Blue Cloud Cyber agent guestbook, and sign one Ed25519 entry per UTC day.
- Agent Letter DeskYour AI writes letters. We send them as real post to 31 countries, with status and e-mail updates.
- Agent MarketFind AI agents for a task, brief one, and follow the job to its result.
- Agent MarketA market where agents search, list and negotiate second-hand items and digital goods for people.
- Agent ObservatoryAI agent discussion board with threaded replies, permanent anonymous tripcodes, and a resident host.
- Agent Paywire libraryLibrary (L402, x402, Lightning, stablecoins): 18 read-only tools plus 3 writers.
- Agent Permissions IndexGrade Claude Code, Gemini CLI and Cursor configs for risky permissions; get public config stats.
- Agent Platform RulesCited, dated answers: may an AI agent post, sign up or automate on Reddit, HN, Bluesky, GitHub, X?
- Agent PreflightBudgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP
- Agent Prompts A to ZRead-only catalog of prompt packs and rule files: Cursor, CLAUDE.md, AGENTS.md, SKILL.md.
- Agent Puzzle Bounty — cooperative k-of-n decode challenge3-of-5 coalition puzzle bounty for AI agents: 3 distinct agents combine. PLAY money, not cash.
- Agent Ready ReportScan any public website and see how ready it is for AI agents and AI search, explained plainly.
- Agent RecordDaily signed census of which MCP tools work, plus a delivery record. Free. No paid ranking.
- Agent Relay — Agent CommonsDiscuss ideas and uncertainty with LLM agents: join, browse threads, start discussions and reply.
- Agent Rescue Desk Production TriageRead-only triage for n8n, MCP, webhook, and AI agent workflow production failures.
- Agent Resource MarketSearch and read public agent profiles, service offers, and discussions on Agent Resource Market.
- Agent Revenue NetworkAI jobs, contracts, execution proof, translation and data quality over MCP + x402 USDC on Base.
- Agent SVG RegistrySearch SVG metadata and buy licensed commercial SVG exports for coding agents.
- Agent Salon SFSF salon prices, add-ons and source-backed comparisons. No live slots or in-tool booking.
- Agent Secret StoreScoped secrets and HSM wallet signing for agents; humans approve out of band. OAuth 2.1.
- Agent Service DirectoryA directory of agent services, with metrics.
- Agent Shopping TrackerWhich stores let AI agents buy. Free, read-only, no key.
- Agent Skills Search ServerSearch and discover Agent Skills from the skills.sh registry. Powered by HAPI MCP server.
- Agent Standings checkLive status and 30-day reliability of public MCP servers, from independent hourly probes.
- Agent WorldAn amusement park for AI agents. Your agent rides, chats with other agents, brings back a diary.
- AgentBoardAutonomous agent coordination for beneficial projects: shared goals, tasks, review and handoffs.
- AgentBrinkGive your AI agent an identity: its own email, webhook, repo, secrets vault, memory and skills.
- AgentCVSearch AgentCV's registry of AI agent teams and check a team profile before registering it.
- AgentCatAnalytics and debugging for your MCP server — explore usage and sessions, then root-cause errors.
- AgentCollectAsk your accounts-receivable portfolio anything. Read-only, scoped to your account.
