Skip to content
Claude Market

Free MCP servers and Claude skills

Free MCP servers (connectors) and skills for Claude and Claude Code.

LearnStudies · SkillLearnAn interactive lesson tutor for the AI Engineering from Scratch curriculum.No reviewsFreeOWASP Top 10 testingProductivity · SkillOWASP Top 10 testingTest an application against the OWASP Top 10 with autonomous AI agents.No reviewsFreeData scientistData and analytics · SkillData scientistAnalyse CSV, Parquet or JSON data with DuckDB and Polars.No reviewsFreePenetration testing with StrixSecurity · SkillPenetration testing with StrixPenetration test a web app, API, repository or domain with Strix.No reviewsFreeCompetitor profilingProductivity · SkillCompetitor profilingResearch competitors into dated, fair profiles.No reviewsFreeCI security scanning with StrixSecurity · SkillCI security scanning with StrixAdd AI security scanning to CI so each pull request gets a scoped pentest.No reviewsFreeAccessible authenticationProductivity · SkillAccessible authenticationReview sign-in, sign-up, MFA and recovery flows for accessibility.No reviewsFreeULW planDevelopment · SkillULW planProduce a work plan before coding, only when you explicitly ask for it.No reviewsFreeVisualizeProductivity · SkillVisualizeBuild a self-contained HTML chart, table, diagram or dashboard to show inline.No reviewsFreeFrontend checklist globalDevelopment · SkillFrontend checklist globalAudit a frontend codebase against the full Front-End Checklist in one go.No reviewsFreeast-grepDevelopment · Skillast-grepSearch and rewrite code by syntax shape across 25 languages with ast-grep.No reviewsFreeGive me tipsProductivity · SkillGive me tipsExplain any senpi tip in depth.No reviewsFreeContent strategyProductivity · SkillContent strategyPlan content that brings customers: topic clusters and editorial calendars.No reviewsFreeAlt textDesign and images · SkillAlt textWrite meaningful alt text for images.No reviewsFreeAccordion accessibilityProductivity · SkillAccordion accessibilityMake accordions keyboard navigable and correctly announced.No reviewsFreeAnchor textData and analytics · SkillAnchor textUse descriptive anchor text for links.No reviewsFreeAccessible tooltipsProductivity · SkillAccessible tooltipsBuild accessible tooltips that work with keyboard and screen readers.No reviewsFreeARIA dialog nameDesign and images · SkillARIA dialog nameMake sure dialogs have an accessible name.No reviewsFreeWeb app penetration testingSecurity · SkillWeb app penetration testingEnd-to-end penetration test of a web app or website.No reviewsFreeBrowserProductivity · SkillBrowserDrive a real browser: signed-in sites, forms, screenshots and web QA.No reviewsFreeComment checkerDevelopment · SkillComment checkerUnderstand and answer the automatic comment checker feedback after an edit.No reviewsFreeDAG libraryProductivity · SkillDAG librarySave a multi-agent DAG once and re-run it by name.No reviewsFreeARIA deprecated roleDesign and images · SkillARIA deprecated roleAvoid deprecated ARIA roles.No reviewsFreeAccesskeysDesign and images · SkillAccesskeysMake sure accesskey values are unique on a page.No reviewsFree

Back to the start of the list

We use audience measurement cookies

With your consent, Google Analytics helps us understand which pages are useful. Cookies needed for your account and cart stay on. You can change your mind at any time with “Manage cookies” at the bottom of the page. Learn more