Model Context Protocol
MCP server directory
25 public MCP servers, each checked by Merlonix with a real Model Context Protocol handshake — not just a ping. See the transport, protocol version, authentication posture, callable tool inventory, and an A–F security-posture grade for each.
Last checked at Jul 7, 2026, 09:39 PM UTC. These are point-in-time observations, not real-time — re-check any server live.
Databases
Neon
Auth requiredServerless Postgres from Neon — manage databases and branches and run SQL from an agent. Requires authentication.
Prisma
Auth requiredPrisma’s server to provision and manage Postgres databases and schema. Requires authentication.
Supabase
DownSupabase’s official server to manage Postgres, auth, storage, and edge functions. Requires authentication.
Dev & code
Docs & knowledge
Astro Docs
OperationalOfficial search over the Astro web-framework documentation, so an agent answers Astro questions from the current docs rather than stale training data.
Cloudflare Docs
OperationalSearch Cloudflare’s developer documentation — Workers, Pages, R2, and the rest of the platform — from an MCP client.
Context7
OperationalPulls up-to-date, version-specific library documentation and code examples straight into an LLM’s context, by Upstash. Cuts down on hallucinated or outdated API usage.
DeepWiki
OperationalAI-generated documentation and Q&A over public GitHub repositories, from the team behind Devin. Ask a question about any indexed repo and get a grounded answer with citations.
Observability
Cloudflare Observability
Auth requiredCloudflare’s observability server for Workers logs, analytics, and metrics. Requires authentication.
Grafana
Auth requiredGrafana’s server for dashboards, datasources, incidents, and observability. Requires authentication.
Sentry
Auth requiredSentry’s official server for error and performance issues, releases, and Seer root-cause analysis. Requires authentication.
Payments
PayPal
Auth requiredPayPal’s official server for invoices, orders, payments, and disputes. Requires authentication.
Square
Auth requiredSquare’s server for payments, catalog, orders, and customers. Requires authentication.
Stripe
Auth requiredStripe’s official MCP server for payments, customers, subscriptions, invoices, and product catalog. Requires a Stripe key.
Productivity
Asana
Auth requiredAsana’s server for tasks, projects, and workspaces. Requires authentication.
Atlassian
Auth requiredAtlassian’s Rovo server for Jira issues and Confluence pages. Requires authentication.
Linear
Auth requiredLinear’s official server for issues, projects, and cycles. Requires authentication.
Notion
Auth requiredNotion’s official server to search and update pages and databases in a workspace. Requires authentication.
Web & data
Firecrawl
OperationalWeb scraping, crawling, search, and structured data extraction for agents, by Mendable. Turns any website into clean, LLM-ready data.
Webflow
Auth requiredWebflow’s server for sites, collections, and CMS items. Requires authentication.
Wix
Auth requiredWix’s server for sites, stores, bookings, and data. Requires authentication.
Check any MCP server — free, no signup.
Paste any MCP endpoint and Merlonix opens a real handshake: protocol version, tool inventory, transport, and an A–F security-posture scan. Then monitor it around the clock and catch silent tool-contract drift before it breaks your agents.