MCP Server Directory

State of Web Vitals io.github.corewebvitals/state-of-cwv

Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.

PromptScan io.github.corporatelad/promptscan

Prompt injection detection API for AI agents. Scan untrusted text before passing it to an LLM.

QuillCaddie MCP com.quillcaddie.www/mcp

OAuth-protected, read-only-by-default MCP server for provenance-labeled QuillCaddie project memory.

openlibrary-mcp-server io.github.cyanheads/openlibrary-mcp-server

Search books and authors, fetch editions, browse subjects, and resolve cover images.

docs-mcp com.redpanda/docs-mcp

Get authoritative answers about Redpanda documentation and search API references.

Live DeFi yield, HL vaults, SEC insider/8-K, macro tape, ETF flows, airdrops, Polymarket whales.

Renzo MCP Server com.renzoprotocol/mcp

MCP server for Renzo protocol data, including chains, vaults, operators, and ezETH metrics.

A verified dependency-audit verdict any AI agent can call over MCP, not a raw scan.

Local Windows management, diagnostics, security, cleanup, and optimization MCP server.

Cinderfi — Retirement Planning com.cinderfi/retirement-planning

Retirement planning for Canada & US. CPP/OAS, Social Security, RRSP/TFSA, 401k/IRA, Monte Carlo.

Publish articles to Qiita via MCP tools. Minimal, fast, and focused on Qiita authoring.

MCP server: static security scanner for MCP servers, agent skills & plugins. 68 attack patterns.

MCP server for Access Worldpay — enterprise processor: authorize, capture, refund, tokenize

agentgauge io.github.GlassCaseOfEmotion/agentgauge

Scan any website's AI readiness: AI search visibility and AI agent usability. Free, no auth.

royal-mcp com.royalplugins/royal-mcp

Security-first WordPress MCP server. 129 tools for Claude, ChatGPT, Gemini. Free on wp.org.

Interventional pain medicine MCP: Medicare checklists, CPT/ICD-10, ASRA, prior-auth & appeals

edinet-db-mcp io.github.edinetdb/edinet-db-mcp

Remote MCP for Japan's EDINET DB — 3,800 listed companies' financials & filings (OAuth)

Local-first TikTok Content Posting API for AI agents: OAuth checks, dry-run and live uploads.

Audit any MCP server's security & quality — OWASP MCP Top 10 + explainable 0-100 MCP Score

Honest voice authenticity for AI agents: enrol a voice, verify a call clip. Signal, not verdict.

Official MCP server for IP geolocation, security, ASN, abuse, timezone, astronomy, and user-agent.

ServiceNow MCP server — 67 tools over the full REST surface, every auth method, flows, diagrams.

MCP server for D2L Brightspace. Multi-auth, 26+ tools, MCP Resources, Prompts, and web dashboard.

MCP server for automated web accessibility scanning with Playwright and Axe-core.