■ Tavily
Search API optimized for LLM agents — the default search provider in LangChain.
Tavily is a search API purpose-built for LLM and agent use. Returns structured, summarized search results with source attribution. Default search integration in LangChain. Simple REST API with minimal setup. Widely used as the drop-in web search tool for agent frameworks.
website: https://tavily.com
docs: https://docs.tavily.com
categories: Web Search
tags: web search, LangChain, LLM search, structured results, agent search
endpoint: https://api.tavily.com/search
protocols: REST
auth: api-key
pricing: per-call
payment: USD
agent-native: yes
human needed: no (fully autonomous)
scope: global
status: approved
registered: 2026-03-10
verified: 2026-03-10