Context7: Context7 is an MCP server that injects up-to-date, version-specific library documentation directly into LLM prompts. Add "use context7" to any coding prompt and it fetches current docs for the library you're working with, eliminating hallucinated APIs and outdated code examples. Works with Claude Desktop, Cursor, Windsurf, and any MCP-compatible editor.; jcodemunch-mcp: jCodeMunch MCP is a highly token-efficient server that leverages tree-sitter AST parsing to provide precise GitHub source code retrieval. It drastically cuts AI token costs by allowing agents to fetch only the exact code snippets they need, rather than reading entire files.
Preventing LLMs from hallucinating deprecated or non-existent API methods
Significantly reduce AI token costs in retrieval-heavy development workflows, especially for LLM-powered agents.