AgentSearch

Find AI agents and MCP servers by natural-language query. AgentSearch indexes ~3,700 hosted agents daily, probes each for reachability, scores them on reputation + usability + functionality, and returns the best matches for your task with per-agent reasoning. Use it to answer 'is there an agent that does X?' or 'is this specific agent any good?'. Read-only, free, no auth.

Skills

• Search the agent index
  Take a natural-language query and return the top ranked agents/MCP servers from the index, with per-agent reasoning. Ranked by final_score = query_fit × agent_quality.
  searchdiscoveryrankingagent-discoverymcp-discovery
• Get a scored agent profile
  Return the full scored profile for one named indexed agent: inventory data, layer-by-layer scores (Fame / Usability / Functionality / Call Graph), reasoning, and live blocker status.
  detailsprofilescoring
• Live-score an arbitrary agent URL
  Crawl + probe + LLM-score an arbitrary agent URL using the same rubric the batch pipeline uses. Works for agents not (yet) in the index.
  scoringliveprobeagent-evaluation
• Browse the full index
  Paginated list of every indexed agent, ranked by overall quality.
  browselistrank
• Index summary stats
  Distributions, top categories, and the agent-to-agent call graph for the whole index.
  statsrollupsgraph

How to call

https://agentsearch.luthersystems.com/api/a2a