Tavily

Search API built for RAG agents

Free tier + paidSearch, vector & RAGtavily.com

What it is

A search API designed as an LLM tool rather than a browser replacement: one call runs the search, fetches the pages, extracts the relevant passages and returns a short synthesized answer alongside sources. Also exposes extract, crawl and map endpoints for site-scoped retrieval.

Why it earns a slot

The default web-search tool in most LangChain and LangGraph agent templates, so models reach for it unprompted. 1,000 free credits a month genuinely covers a side project.

Know before you commit

Advanced search costs more credits than basic, so a naive agent loop can burn the monthly free tier in a day. Results skew toward summarized text over raw page HTML.

Getting started

npm i @tavily/core

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Pricing snapshot

Free: 1,000 API credits/month, no card required. Pay-as-you-go $0.008 per credit ($8 per 1K). Project plans on a sliding scale starting around 4,000 credits/mo. Free for students. Enterprise custom.

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Drop into your Lovable chat

Evaluate Tavily (https://www.tavily.com) for this project, then use it only if it fits what we are already building.
Context: Search API built for RAG agents. A search API designed as an LLM tool rather than a browser replacement: one call runs the search, fetches the pages, extracts the relevant passages and returns a short synthesized answer alongside sources. Also exposes extract, crawl and map endpoints for site-scoped retrieval.
Reviewer notes (general, not written for this codebase): The default web-search tool in most LangChain and LangGraph agent templates, so models reach for it unprompted. 1,000 free credits a month genuinely covers a side project.
Watch out for: Advanced search costs more credits than basic, so a naive agent loop can burn the monthly free tier in a day. Results skew toward summarized text over raw page HTML.
Pricing: Free: 1,000 API credits/month, no card required. Pay-as-you-go $0.008 per credit ($8 per 1K). Project plans on a sliding scale starting around 4,000 credits/mo. Free for students. Enterprise custom.
Setup: npm i @tavily/core
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

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Neighbourhood

How Tavily sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.

Instead of thisFuse.js MiniSearch Pagefind Algolia Brave Search API Chroma Cloudflare Vectorize Elastic Cloud Exa

Named in the wiringLangChain

Also in Search, vector & RAG

Algolia

algolia.com

Hosted keyword search API

Free tier + paidSearch, vector & RAG

Free: 10K search requests/mo + 50K records. Grow: $0.50 per 1K searches + $0.40 per 1K records (10K searches / 100K records included). Grow Plus $1.75 per 1K searches. Elevate with NeuralSearch is custom.

Open dossier

Brave Search API

brave.com

Independent web index search API

PaidSearch, vector & RAG

$5/month in free credits applied automatically; no standing free query allowance. Search $5 per 1K requests at 50 QPS. Answers $4 per 1K requests plus $5 per million input/output tokens at 2 QPS. Enterprise custom.

Open dossier

Chroma

trychroma.com

Embedded vector DB + cloud

Free tier + paidSearch, vector & RAG

OSS free (Apache 2.0). Chroma Cloud Starter: $0/mo base with $5 free credits, then usage. Team $250/mo + usage with $100 credits. Rates: $2.50 per GiB written, $0.33 per GiB-month stored, $0.0075 per TiB queried, $0.09 per GiB returned.

Open dossier

Cloudflare Vectorize

developers.cloudflare.com

Serverless vector DB on Workers

Free tier + paidSearch, vector & RAG

Workers Free: 5M stored vector dimensions, 30M queried dimensions/mo. Workers Paid ($5/mo): 10M stored and 50M queried included, then $0.05 per 100M stored dimensions and $0.01 per million queried dimensions.

Open dossier