Best YAML MCP Servers
YAML (YAML Ain't Markup Language) is a human-readable data serialization standard that can be used in conjunction with all programming languages and is often used for configuration files.
Why this server?
Allows querying YAML configuration files as a knowledge source.
AlicenseAqualityBmaintenanceA self-hosted, MIT-licensed MCP server that securely connects private documents and markdown files to LLMs. It provides a lightweight, local-first RAG infrastructure compatible with any MCP-enabled AI client or framework.Last updated31MITWhy this server?
Supports API governance, linting, and policy enforcement for OpenAPI specifications and custom governance rules defined in YAML format.

delimitofficial
AlicenseBqualityAmaintenanceOne workspace for every AI coding assistant. Governance tools for API lint, diff, persistent ledger, multi-model deliberation, security audit, and test verification. Works with Claude Code, Codex, Cursor, and Gemini CLI.Last updated10091021MITWhy this server?
Utilizes YAML files for defining server deployment configurations and infrastructure templates.

Kastellofficial
AlicenseAqualityBmaintenanceServer security auditing (413 checks, 29 categories), production hardening, and fleet management. Supports Hetzner, DigitalOcean, Vultr, and Linode.Last updated172,47756Apache 2.0Why this server?
Enables defining and configuring multiple API endpoints using YAML syntax, supporting various HTTP methods, parameter generation, and request configurations.
AlicenseBqualityDmaintenanceA Model Context Protocol server that creates tools from API configurations defined in YAML files, allowing easy integration of external APIs into an MCP ecosystem without coding.Last updated7367MITWhy this server?
Used in examples for tool generation, such as converting YAML to JSON format.
AlicenseAqualityDmaintenanceEnables AI-powered generation of production-ready CTP (ConveniencePro Tool Protocol) tools from natural language descriptions, including tool definitions, implementations, tests, and TypeScript validation.Last updated523MITWhy this server?
Enables loading and analyzing YAML data files with support for conversion to other data formats.
AlicenseBqualityDmaintenanceProvides access to VisiData functionality for data analysis, visualization, and transformation across multiple formats. Supports advanced features like correlation heatmaps, skills analysis, salary benchmarking, and statistical distribution plots.Last updated1521MITWhy this server?
Provides OpenAPI 3.1 specification in YAML format for API documentation and integration with tools like ChatGPT Custom GPTs.
Why this server?
Handles YAML frontmatter within notes, ensuring existing metadata is preserved and new translation-related tracking information is added automatically.
AlicenseBqualityDmaintenanceEnables Claude to translate, search, and manage Obsidian notes directly through the Model Context Protocol. It features automatic backups, CRUD operations, and protects metadata and code blocks during the translation process.Last updated62,0241Apache 2.0Why this server?
Allows for the reading and writing of YAML and YML files, supporting configuration management and data serialization.
AlicenseBqualityFmaintenanceEnables processing of Excel, Word, and PDF documents through reading, writing, and metadata extraction. It leverages a secure Pyodide WebAssembly environment to handle document parsing with support for paginated results.Last updated4361MIT