MCP Server Security: The 10 Most Common Vulnerabilities (2026)
A field guide to the 10 most common security flaws in Model Context Protocol servers — with real examples, detection patterns, and fix recipes.
Long-form technical writing on MCP security, AI cost optimization, and global SaaS launch mechanics. Companion to the API hub and MCPWatch.
Weekly email on MCP security incidents, new CVEs, and grade changes on popular servers.
A field guide to the 10 most common security flaws in Model Context Protocol servers — with real examples, detection patterns, and fix recipes.
A 10-minute checklist for vetting any MCP server before you npx it into your agent loop — including the fast automated path.
Real-world examples of attackers hiding instructions inside MCP tool descriptions to override agents — and how to defend against it.
Per-million-token pricing across OpenAI, Anthropic, Google, DeepSeek, Mistral — plus a free API to query it live.
What global SaaS teams need to ship in Korea: PIPA compliance, Korean Won billing, address handling, business registration validation.
The simplest possible LLM router — route each prompt to the cheapest model that can handle it, and drop your monthly OpenAI bill by 40%.
A free alternative to BuiltWith and Wappalyzer for detecting 150+ technologies across any URL.
Regex matches 'anything@anything'. Here are the 8 layers that actually prevent bounces.
DST, UTC+14, offset-only identifiers — timezones are the most over-confident source of bugs in SaaS.
The Korean business registration number has a checksum most implementations get wrong. Here's the algorithm and a free validator.
Choose the wrong cost-basis method and you'll pay 20-40% more in crypto capital gains tax. Here's the decision framework plus a free calculator.
Most password strength meters lie. Here's how entropy, common-password checks, and crack-time estimation actually work — with a free API to measure your own.
Stop hand-writing JSON schemas. Modern inference can derive an accurate schema from 5-10 samples, with generated TypeScript types and mock data as a bonus.
Generate realistic Korean addresses, Japanese names, European VAT IDs — not just US first-names. An open API for 10+ locales with custom-schema support.
Your agent loop is a black box. Here's the minimum observability stack that catches cost spikes and hallucinations before they ship.
Generated fake data feels safe but misses real-world edge cases. Production snapshots catch bugs but leak PII. Here's the hybrid pattern that works.
Stripe, GitHub, Slack webhooks are notoriously hard to debug locally. A hosted inspector captures + replays them so you can iterate without tunneling.
IP-based fraud signals are cheap, fast, and catch 30% of low-effort abuse. Here's the minimum pipeline + a free edge API.
Your brand colors may violate WCAG contrast ratios for 20% of your users. Here's how to generate accessible palettes programmatically.
'Every weekday at 9am' → `0 9 * * 1-5`. And the reverse. Plus the next N runs, timezone-aware. A free API for cron parsing and explanation.