Free web search & SERP API — built for AI agents*
No key. No signup. No rate plan. Ranked JSON over 20M+ live sites — in one request.
Every search API wants a key. We don't.
An AI agent can't sign up for an account or paste in a billing card — so any API key just puts a human back in the loop. FreeSerp is keyless on purpose: a drop-in free alternative to the Google Search API, the Bing Search API and every paid SERP API.
Built for agents that act on their own.
No API key
Call it the moment your agent decides to — nothing to provision.
No signup
No account, no form, no dashboard. Just one URL.
Real-time index
20M+ live sites, refreshed daily — the long tail, not the top 1000.
LLM summaries
Every result carries a factual summary your model can read directly.
Sort every field
Domain Rating, live date, tech stack, niche — order by any of them.
MCP-native
Plug straight into Claude or any MCP client as a search tool.
One call. Ranked results.
A single GET returns clean JSON — domain, title, summary, Domain Rating, live date and tech stack. No HTML to parse, no proxies, no CAPTCHAs.
curl 'https://freeserp.ai/api.php?q=ai+chatbot&size=5'Your agent, unblocked.
No rate-limit games, no per-request bill, no scraper cat-and-mouse. Free web search that scales with what your agent needs — for retrieval, grounding, monitoring and tool-calls.
Frequently asked questions
Is there a free SERP API?
Yes — FreeSerp is a free SERP API for AI agents. No key, no signup, no rate plan. It returns ranked JSON results over 20M+ live sites via a single GET request.
What is the cheapest SERP API?
FreeSerp is effectively the cheapest SERP API because it is free: no API key, no paid tier, no per-request billing.
Is FreeSerp an alternative to the Google Search API or Bing Search API?
Yes. FreeSerp is a free alternative to the Google Search API and Bing Search API, designed for AI agents, with a JSON REST endpoint and an MCP connector — no Google Cloud or Azure account required.
How does an AI agent use the search API?
Call the JSON endpoint at /api.php, or connect the MCP server at /mcp. Both are keyless and return ranked results with LLM summaries.
Can I sort and filter the results?
Yes — FreeSerp exposes filtering and sorting on every field (Domain Rating, live date, category, tech stack and more). See the field reference.
How FreeSerp compares
| FreeSerp | Google Search API | Bing Search API | SerpApi | Tavily | |
|---|---|---|---|---|---|
| Price | Free | Paid | Paid | Paid | Paid |
| API key | None | Required | Required | Required | Required |
| Signup | None | Google Cloud | Azure | Account | Account |
| MCP connector | Yes | — | — | — | Partial |
| LLM summaries | Yes | — | — | — | Yes |
| Sort / filter fields | Every field | Limited | Limited | Limited | — |
Explore search APIs
Browse all search APIs & free alternatives (Google, Bing, SerpApi, Tavily, Brave…) →
Search API glossary
- SERP
- Search Engine Results Page — the ranked list a query returns.
- SERP API
- An API returning those ranked results as structured data instead of HTML.
- Web search API
- A programmatic way to search the web and get machine-readable results.
- MCP
- Model Context Protocol — lets an AI client call a tool like FreeSerp natively.
- Domain Rating (DR)
- A 0–100 authority score used to rank and filter results.
- AEO
- Answer Engine Optimization — getting cited by AI answer engines.