Ranked by AI agent readiness across MCP, API, CLI, Skills, and Docs.
Cloud platform with official MCP (7 tools), REST API with OpenAPI 3.0, CLI with --json, 5 agent skills (deploy/debug/monitor/migrate/workflows), and llms.txt
Deployment platform with remote MCP, 27+ agent skills via skills.sh, REST API with 250+ endpoints, and llms-full.txt
Deployment platform with official MCP (13 tools), GraphQL API v2, CLI with --json, use-railway agent skill, and llms.txt + AI quickstart
App deployment platform with fly mcp built into CLI (10 subcommands), Machines REST API with OpenAPI, flyctl with --json, CLAUDE.md in side repos, and copy-as-markdown on all docs
Infrastructure as Code with community MCP servers, comprehensive API, powerful CLI with JSON output, and rich agent integration ecosystem