Tool integrations | LangChain 日本語

Tools are utilities designed to be called by a model: their inputs are designed to be generated by models, and their outputs are designed to be passed back to models.

A toolkit is a collection of tools meant to be used together.

Web search

The following table shows tools that execute online searches in some shape or form:

Tool/Toolkit	Free/Paid	Return Data
Diffbot	Free	URL, Snippet, Title, Date, Knowledge Graph (Organizations, News, People, Places, Deals)
Exa Search	1000 free searches/month	URL, Author, Title, Published Date
Nia Toolkit	Free tier available	Code, Docs, Metadata, Sources
Perplexity Search	Paid (with monthly free tier)	URL, Title, Snippet, Date, Last Updated
TalorData SERP	Paid	Title, URL, snippet, position, knowledge graph, answer box, AI overview
Tavily Search	1000 free searches/month	URL, Content, Title, Images, Answer

Integration platforms

The following platforms provide access to multiple tools and services through a unified interface:

Tool/Toolkit	Number of Integrations	Pricing	Key Features
`Composio`	500+	Free tier available	OAuth handling, event-driven workflows, multi-user support

Media generation

The following table shows tools that generate video, image, or audio assets:

Tool/Toolkit	Pricing	Capabilities
Magic Hour	Free tier (400 credits + 100/day)	Text-to-video, image-to-video, and image generation with Sora 2, Veo 3.1, Kling 3.0, WAN 2.2, GPT-image, Nano Banana Pro. Sync and async, returns URLs or local downloads.

All tools and toolkits

Integration	Downloads
`Dall-e`
`OpenAI`
`OpenAPI toolkit`
`Anthropic`
`Google`
`TavilyCrawl`
`TavilyExtract`
`TavilyGetResearch`
`TavilyMap`
`TavilyResearch`
`TavilySearch`
`OracleSummary`
`ExaSearchResults`
`Composio`
`AtomicMailToolkit`
`Mcp toolbox for databases`
`WatsonxToolkit`
`Bilig WorkPaper`
`Fizzl`
`PerplexitySearchResults`
`Continuity tools`
`Decodo`
`agentsvc`
`Serpex`
`PexafyToolkit`
`DataBazaar`
`AgentSearchTool`
`pipe0Tools`
`Precleared`
`M91`
`InstantExpertToolkit`
`Pushary`
`SatoHubTools`
`Fidacy Action Firewall`
`GetYouTubeTranscriptTool`
`Respan`
`Falkordb`
`SnapRender`
`TalorDataSerpTool`
`Azure container apps dynamic sessions`
`Steward`
`aiworker`
`You.com search tools`
`Corsair`
`SafePromptCallbackHandler`
`Mercedes-Benz Service Reminder (SilberArrows)`
`WebExtract`
`ClickSend`
`The Context Company`
`Toolstem`
`MagicHourTools`
`iFlow Search`
`AproxPay`
`Jigsawstack`
`CekiToolkit`
`SIGNA`
`NiaToolkit`
`Agent with AWS lambda`	N/A
`Browserless`	N/A
`JSON agent toolkit`	N/A
`NotteBrowserToolkit`	N/A
`SQLToolkit`	N/A
`VectorStoreToolkit`	N/A
`Web browser`	N/A

Info

If you'd like to write your own tool, see Create tools. If you'd like to contribute an integration, see Build a new integration.