Ranked by AI agent readiness across MCP, API, CLI, Skills, and Docs.
Search platform with official MCP (algolia-mcp), REST API with OpenAPI + Agent Studio API, CLI with --json, Agent Studio skills framework, and llms.txt
Search engine with official MCP server (26 tools, Docker support), REST API with per-release OpenAPI specs, no management CLI, CLAUDE.md + AGENTS.md across SDK ecosystem, and llms.txt + llms-full.txt + AI search quickstart