A free SERP API for AI agents
FreeSerp is a free SERP API built for AI agents: no key, no signup, no per-request bill. One request returns ranked JSON from our own 3.1B+ page web index — or from 20M+ site profiles with LLM summaries.
curl 'https://freeserp.ai/api.php?index=web&q=ai+agent+frameworks+compared&size=5'Because an agent cannot register for an account, any key puts a human back in the loop. FreeSerp is keyless on purpose — call the JSON endpoint or the MCP connector and start searching. Web results come back with url, title, snippet, language, date and a site card; site results with an LLM summary, Domain Rating, live date and tech stack.
Two indexes, one endpoint. index=web searches FreeSerp Global, our own 3.1B+ page web index — any URL, any language, ranked by text relevance, link authority and domain trust, with a site card (Domain Rating, category, live date) on every hit. The default FreeSerp Main index (main pages only) holds 20M+ live sites at homepage level with LLM summaries, Domain Rating and AI-niche taxonomy, filterable and sortable on every field.
FreeSerp vs Paid alternatives
| FreeSerp | Paid alternatives | |
|---|---|---|
| Price | Free | Paid per search |
| API key / signup | None | Required |
| Index | Own, 3.1B+ pages | Scraped SERPs |
| MCP connector | Yes | — |
| Site metadata | DR, summary, niche, live date | — |
FAQ
Is FreeSerp really a free SERP API?
Yes — free, keyless, no signup and no per-request billing, on our own 3.1B+ page index.
How do agents connect?
Via the JSON endpoint at /api.php or the MCP server at /mcp.
Whose results are these?
Ours. FreeSerp runs its own web index and ranking; it is not a proxy to Google or Bing.
