# My Study Series > Help center and documentation for My Study Series ## Docs - [Validation problems?](https://app.helpshelf.com/help/my-study-series/article/validation-problems) - [How do I cancel a subscription or trial?](https://app.helpshelf.com/help/my-study-series/article/how-do-i-cancel-a-subscription-or-trial) - [Can students purchase an account?](https://app.helpshelf.com/help/my-study-series/article/can-students-purchase-an-account) - [How to redeem my access code?](https://app.helpshelf.com/help/my-study-series/article/how-to-redeem-my-access-code) - [Student registration](https://app.helpshelf.com/help/my-study-series/article/student-registration-1) - [How much does My Study Series cost to access?](https://app.helpshelf.com/help/my-study-series/article/how-much-does-my-study-series-cost-to-access) - [How can I trial My Study Series](https://app.helpshelf.com/help/my-study-series/article/how-can-i-trial-my-study-series) - [Can't access any videos / quizzes](https://app.helpshelf.com/help/my-study-series/article/cant-access-any-videos-quizzes) ## Search For specific questions, search: https://app.helpshelf.com/help/my-study-series/search?q={query} ## AI Agent Access - [Full product context](https://app.helpshelf.com/help/my-study-series/llms-full.txt): policy-checked verified documentation, or guarded-access guidance when bulk export is unavailable - MCP endpoint: https://app.helpshelf.com/api/mcp/22e7b4a67c1a (streamable HTTP) with tools: search_docs, ask, get_article, get_product_context Send `Accept: application/json, text/event-stream` — a compliant Streamable HTTP server answers 406 without both media types. - [MCP server card](https://app.helpshelf.com/help/my-study-series/.well-known/mcp/server-card.json): machine-readable description of the endpoint above - [Agent skills](https://app.helpshelf.com/help/my-study-series/.well-known/agent-skills/index.json): how to use this documentation, as an Agent Skill - Markdown: any article URL returns Markdown when requested with `Accept: text/markdown` AI agents have read-only access to published documentation. This MCP endpoint never creates tickets, notifications, or other account mutations.