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Tavily

Search API built for AI agents: search, extract, crawl, and map in one credit model.

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About

Tavily is a search layer designed for RAG pipelines and AI agents rather than human browsers. It exposes /search, /extract, /crawl, /map, and /research endpoints that return scored, LLM-ready snippets and cleaned page text instead of raw links, and it ships as the built-in web-search tool in LangChain.

Pricing is a single credit unit across every endpoint (pay-as-you-go $0.008/credit, plans from $30/mo), which makes cost forecasting simple arithmetic. The free tier is 1,000 credits every month with no card required.

Honest limits: independent benchmarks place its retrieval quality a notch below Exa and Brave, and advanced searches burn multiple credits, so real per-query cost varies with depth.

What it can do

  • Neural-ish web search tuned for agents
  • Page extraction and crawling
  • Site mapping for RAG ingestion
  • Research endpoint for multi-hop queries
  • Official MCP server

Setup

  1. Sign up at tavily.com and copy your API key.
  2. Install the SDK: pip install tavily-python or npm i tavily.
  3. Call client.search("your query", search_depth="advanced") for grounded snippets.
  4. Use /extract on result URLs when you need full page text in the same credit flow.

Prerequisites

Tavily account and API key; Python or Node runtime.

Use cases

dataresearchagents

Works with

langchainmcpGeneric API

Trust score — 7/10

/10 trustMetrics-checked

Scored 7/10 (metrics tier, metrics-v1). Evidence: Default web-search tool in LangChain agent tutorials; 1,000 free credits/month recurring, no card; Proprietary API, no self-host option. License: Proprietary API.

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
8.0/10
Maintenance · recency, releases, issue load
8.0/10
Openness · license + docs
4.0/10
Manual review · sanity read + red-flag check
7.0/10
  • · Default web-search tool in LangChain agent tutorials
  • · 1,000 free credits/month recurring, no card
  • · Proprietary API, no self-host option

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.