"Capture The Flag (CTF) cybersecurity competitions and challenges" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Serves your design system and coding standards to coding agents, so they stop guessing.
Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.
Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Find and validate SaaS ideas from real user complaints, scored for commercial intent.
IBGE: geography, census, economy and health from the official APIs, with provenance. 21 tools.
Look up a guitar chord by name and get a text chord diagram. 12,708 standard-tuning names.
Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Check internet providers, plans, speeds, and known pricing at a specific U.S. street address.
Stop debugging the same error twice. Search 385+ failure lessons so your agent skips known bugs.
Read-only MVR preflight for trust, permission, evidence gaps, and African market-entry readiness.
Verified fixes, professional reviews, and evidence-led apparel over MCP.
Rug pull risk and on-chain forensics for tokens on Solana, Ethereum, Base and Robinhood.
Deterministic calendars, seasons, moon phases, retrogrades, and symbolic systems as stable JSON for AI agents via MCP. Gregorian dates 1900–2100; same date → same bytes.
Read-only MCP: search destinations, tipping rules, and tip calculator with canonical URLs.
31Persistent knowledge graph for AI-augmented teams. Store decisions, findings, and standing rules across agent sessions with semantic search and typed connections. Includes cross-session memory, audit trail, workspace isolation, and secret detection. Built for teams running agents that need to remember.
Onchain Diary exposes its full knowledge base — 96 Web3 security articles and 220 glossary terms, in English and Chinese — through the Model Context Protocol. Any MCP-capable assistant can search it and read complete articles without scraping HTML.
BuyUKeSIM MCP lets AI agents search and purchase global travel eSIMs, UK +44 number eSIMs, and related connectivity services programmatically. Agents can search plans, compare pricing and coverage, create and fund prepaid crypto wallets, purchase eSIMs, and check order status — with no traditional account or KYC workflow.
Helena Bioinformatics MCP for clinical variant interpretation, ACMG/AMP evidence and literature.
