Bottom line: Tavily is a web-search API built for AI agents, not people — and its free Researcher plan includes 1,000 API credits every month, no credit card required. That is enough to give a personal agent or a RAG prototype real, current web access. Deep research burns credits fast, so the free plan rewards deliberate use.
Pricing checked October 16, 2026, against Tavily’s published documentation. This is a research-based review; we do not claim hands-on testing.
What does Tavily do?
Most search engines return links for humans to click. Tavily returns clean, LLM-ready content for software to read. Its API covers five jobs: Search (web results tuned for AI), Extract (readable content from specific URLs), Map (a site’s structure), Crawl (map plus extract across a site), and Research (multi-step investigations compiled into a report). SDKs and a hosted MCP server let agent frameworks plug Tavily in as their web layer with one API key — the piece that lets a chatbot answer questions about events after its training ended, cite real pages, and read sources you point it at instead of guessing.
What is actually free on Tavily?
The Researcher plan is $0 and includes 1,000 API credits per month, with no credit card required to get a key. Credits are the whole game, and Tavily publishes exactly what they buy:
- Basic Search: 1 credit per request.
- Advanced Search: 2 credits per request.
- Extract: 1 credit per 5 successful URL extractions at basic depth (2 credits at advanced depth); failed extractions are not charged.
- Map: 1 credit per 10 successful pages returned (2 with natural-language instructions).
- Research: priced dynamically per task — deep runs can cost far more than a search, so use it deliberately.
Do the math: 1,000 credits is 1,000 basic searches, or 500 advanced, or a mixed month of searches plus extractions. Generous for development — but an agent looping searches unchecked burns it fast, so cache results and default to basic depth.
What do the paid plans add?
More credits at a lower per-credit price, not different features. Project is $30/month for 4,000 credits, Bootstrap $100 for 15,000, Startup $220 for 38,000, and Growth $500 for 100,000; pay-as-you-go runs $0.008 per credit. Since free includes the same API surface, you can build on $0 knowing exactly what scaling costs.
Pros and cons of Tavily’s free plan
Pros
- 1,000 credits every month, renewing — not a one-time trial pot
- No credit card required to start
- Transparent credit costs published per endpoint and depth
- Same full API on free as on paid; failed extractions are not charged
Cons
- It is an API for builders — there is no consumer search page to browse
- Research tasks are priced dynamically and can eat a month’s credits in a few runs
- An unattended agent can burn the allowance; you need caching and depth discipline
- Per-credit math means costs scale with usage on paid plans
Who is Tavily best for?
Developers giving an agent or chatbot live web access, researchers scripting scans, and anyone building a RAG prototype who needs clean page content instead of raw HTML. If you only want answers in a browser, use a free AI search engine — Tavily is the engine room, not the bridge.
Frequently asked questions
Is Tavily free to use?
Yes, on the Researcher plan: 1,000 API credits per month at $0, no credit card required. Paid plans and pay-as-you-go exist for higher volume.
How much does one Tavily search cost?
One credit at basic depth and two credits at advanced depth. Extraction costs one credit per five successful URLs at basic depth.
Do Tavily’s free credits renew?
Yes. The 1,000-credit allowance is monthly, so a personal agent or prototype can run indefinitely on the free plan within that budget.
How is Tavily different from Exa?
Both sell search APIs for AI. Tavily bundles search, extraction, crawling, mapping, and research behind one credit pool; Exa centers on semantic search quality. Tavily’s free allowance is a flat 1,000 monthly credits; see our Exa review for its credit offer.
Verdict: The cleanest free on-ramp to giving AI real web access: a renewing allowance, honest per-call prices, and no card at the door. Just budget your agent’s curiosity.