One call. Ranked results.
A single GET returns clean JSON — url, title, snippet, language, publication date, and a site card with Domain Rating. No HTML to parse, no proxies, no CAPTCHAs.
curl 'https://freeserp.ai/api.php?index=web&q=how+to+fine-tune+llama+3&size=5'
curl 'https://freeserp.ai/api.php?q=ai+chatbot&ai_startups=1&sort=went_live' # FreeSerp Main (main pages only)Built for agents that act on their own.
FreeSerp Global
Our own web index: 3.1B+ pages in every language, ranked by text relevance, link authority and domain trust — not a wrapper around someone else's API.
FreeSerp Main
Main pages only — a second index of 20M+ live sites: LLM summary, Domain Rating, AI niche, tech stack, live date. Filter and sort on every field.
No API key, no signup
Call it the moment your agent decides to — nothing to provision, no dashboard, one URL.
Site card on every hit
Web results carry the site's DR, category and live date when we know the domain — grounding plus context.
Language & freshness
lang=ru, fresh=1, publication-date windows. Cyrillic, CJK, Latin — all first-class.
MCP-native
Plug straight into Claude or any MCP client as a search tool.
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 retired Bing Search API and every paid SERP API — on an index we build ourselves.
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.
How FreeSerp compares
| FreeSerp | Google Search API | Bing Search API | SerpApi | Tavily | |
|---|---|---|---|---|---|
| Price | Free | Paid | Retired (2025) | Paid | Paid |
| API key | None | Required | — | Required | Required |
| Signup | None | Google Cloud | — | Account | Account |
| Own index | 3.1B+ pages | — | Scrapes Google | Partial | |
| MCP connector | Yes | — | — | — | Partial |
| Site profiles (DR, summary) | Yes | — | — | — | — |
| Sort / filter fields | Every field | Limited | — | Limited | — |
Frequently asked questions
Is there a free web search API?
Yes — FreeSerp is a free web search API for AI agents. No key, no signup, no rate plan. It searches our own index of 3.1B+ web pages and returns ranked JSON via a single GET request.
What is FreeSerp Main?
Our second index, main pages only: 20M+ live sites at homepage level, each with an LLM summary, Domain Rating, AI niche taxonomy, tech stack and live date. It is the API's default index and the right tool for discovering new sites and AI startups; on this page switch to it with the toggle under the search box.
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. The Bing Search API was retired in August 2025 and the Google API is paid and keyed. FreeSerp is a free alternative on our own web index, designed for AI agents, with a JSON REST endpoint and an MCP connector.
How does an AI agent use the search API?
Call the JSON endpoint at /api.php?q=… (FreeSerp Main site profiles by default, index=web for FreeSerp Global, the open web), or connect the MCP server at /mcp. Both are keyless.
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 from our own link graph, used to rank and filter.
- FreeSerp Global
- FreeSerp's own full-web index of 3.1B+ pages (
index=web). - FreeSerp Main
- FreeSerp's homepage-level index of 20M+ live sites with LLM summaries and metadata (
index=sites, the API default).
Free Web Search API · SERP API · Search API for AI Agents
Free web search & SERP API for AI agents — FreeSerp Global, our own 3.1B+ page index
