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?
Uses YAML format for storing named feature flows with ordered step sequences in the generated graph data for flow analysis.
AlicenseAqualityAmaintenanceStructural graph map of any codebase. Scans entities, relationships, and feature flows across 13 languages so LLMs navigate by structure instead of reading everything.Last updated16136MITWhy 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 updated1753852Apache 2.0Why 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 updated1001,89819MITWhy this server?
Utilizes the IANA-registered .faf (YAML) format to manage project metadata, providing tools to initialize, auto-detect, and score project context for AI-readiness.
AlicenseAqualityBmaintenanceGrok asked for MCP on a URL. This is it. First MCP server built for Grok URL-based • Zero config • Just worksLast updated81261317MITWhy 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 updated727MITWhy this server?
Provides hot-reload capabilities for tool definitions from YAML files with file watching, enabling dynamic configuration management of MCP tools without server restarts.
AlicenseAqualityAmaintenanceAbout The fast, idiomatic way to build MCP servers in Go. Gin-like DX with struct-tag auto schema, middleware, adapters for Gin/OpenAPI/gRPC.Last updated514Apache 2.0Why this server?
Uses YAML for service template definitions including configuration for Ollama, Frigate NVR, Home Assistant, Pi-hole, Jellyfin, K3s, and TrueNAS.
AlicenseBqualityCmaintenanceEnables AI assistants to manage homelab infrastructure through automated service installation (Jellyfin, Pi-hole, Ollama, Home Assistant, Frigate NVR), VM operations, AI accelerator support (MemryX, Coral TPU, Hailo-8), and Terraform state management with SSH-based discovery and deployment.Last updated584MITWhy this server?
Enables the conversion of YAML data into the compact TOON format, significantly reducing the token footprint for large datasets sent to LLMs.
AlicenseAqualityDmaintenanceEnables users to convert structured data into Token-Oriented Object Notation (TOON) to reduce LLM token usage and costs by up to 70%. It provides tools for encoding, decoding, and analyzing data formats like JSON, CSV, and XML to optimize prompt efficiency.Last updated493MITWhy this server?
Allows exporting Ocean cluster and Virtual Node Group (VNG) configurations in YAML format, supporting GitOps workflows and configuration backups.
AlicenseAqualityBmaintenanceAn MCP server for the Spot.io API that enables management of AWS and Azure Ocean clusters across multiple accounts. It provides tools for cluster inventory, node management, cost analysis, and scaling operations through natural language.Last updated39MIT