Model Context Protocol (MCP) Server Directory

Build a CIMD-hardened MCP server with OAuth 2.1, audience-bound tokens, and URL elicitation that ends token passthrough with only 41ms auth overhead.

Build a Tasks-enabled MCP server with durable handles, polling, mid-flight input, and cancel that survives disconnects and cuts long-job failures 72%.

Migrate to the official Slack MCP server with native permissions, unfurls off and allowlisted fetches to kill the archived CVSS 9.3 leak class fast.

Build a Stripe MCP server with restricted rk_ keys, 14 hosted tools and human approval gates for refunds and invoices in proven production agent flows.

Expose curated versioned tools through one Foundry Toolbox MCP endpoint with central credentials, blue-green versions and RAI guardrail policies.

Build a hardened Postgres MCP server with HypoPG index simulations, layered read-only safety and pg_stat_statements tuning for production Cursor agents.

Official lldb-mcp plus 40-tool server lets agents debug C++ natively. I cut time-to-fault from 47 minutes to 7 with router mode.

FastMCP npm intelligence server audits packages in 42ms with OSV scans and typosquat detection. I built it after RubyGems swarm hit us.

Amazon Quick's Sep 2026 connector update brings per-tool gating, consent modes, and MCP sync. Build a governed connector fleet across five agent surfaces.

Patch MCP Ruby to 0.23.0: cap bodies, bound stdio, expire sessions, allowlist Hosts to stop 4 CVEs.

Deploy ToolHive to run 200+ MCP servers isolated with SSO, audit logs, registry curation, and 85% token savings via virtual gateway.

The "skills vs tools" question defines 2026 agent architecture. This guide builds a Skills Registry MCP Server that catalogs 1,700+ AI agent skills, maps them to equivalent MCP tool configurations, and enables agents to discover the right capability for any task — bridging the gap between agent-native skills and protocol-level tool calls.