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BlocksTools & Utilities
Claude Web Search Tool
Claude Web Search Tool
Search the web with Claude AI. Includes result filtering, multiple search types, and language support.
Use this when you need web lookups inside streamText on Anthropic without adding a separate search API, using Claude's provider-native search tool.
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Problems solved
Technical challenges this implementation handles out of the box.
- Search the web with Claude's built-in webSearch tool
- Stream citation-backed answers with sendSources
- Use Anthropic provider-native tools inside streamText
Use cases
Products and workflows this pattern is designed to support.
- Research assistants on Claude
- Fact-checking chats with source links
- News monitoring agents
- Competitive intelligence lookups
Compare with
Similar patterns, and when each one is the better fit.
@exalabs webSearch ToolUse this when you want Exa search in an agent without defining any tool yourself, by importing the ready-made webSearch tool from @exalabs/ai-sdk.
Web Search ToolUse this when you want OpenAI's built-in web_search_preview tool forced on every query so answers are grounded in live web results.
Chat ClaudeFreeUse this when you need a Claude-style chat layout with reasoning, sources, and message branching on mock replies, before any model is connected.
Search - Firecrawl (robust)FreeUse this when Firecrawl is your search provider and your chat agent needs to find pages by query rather than scrape URLs you already have.
Setup
Requirements, wiring steps, and what this pattern adds to your project.
Getting started
Pick how you want to pull this pattern in. Then wire env vars and routes the same way.
- 1
Download → Next.js app
Use Download → Next.js app in the preview toolbar. You get a zip scaffold (Pro downloads rewrite preview `/view/.../api/*` paths to `/api/*` automatically).
- 2
Extract the zip and install dependencies
Unzip the archive, then run `pnpm install` (or npm / yarn) in the project folder.
- 3
Fill .env.local
The download includes .env.local placeholders when needed. Add real values for: CLAUDE_API_KEY.
- 4
Customize the agent and tool files
Adapt prompts, tools, and stop conditions in the generated project for your product.
- 5
Run the app and open the pattern route
Run `pnpm dev`, open the setup/checklist page if present, then navigate to the generated pattern route and verify responses.
Environment variables
CLAUDE_API_KEYGet key
Capabilities
AI SDK APIs
streamTexttoolconvertToModelMessagesgenerateTextProviders
Claude
Files added
6 files
app/page.tsxapp/layout.tsxapp/api/websearch-claude/route.tscomponents/websearch-demo.tsxlib/request-utils.tsREADME.md
Dependencies
7 total
npm packages
6AISDKlucide-reactNext.jsReactsonnerZod
Registry components
empty
Critical files
1 file
websearch-claude/route.tsAPI route demonstrating Claude's built-in web search tool via anthropic.tools.webSearch. Shows the provider-native tool integration pattern with streamText and sendSources.
Requirements
- Complexity
- Beginner
- Setup time
- ~10 minutes
- Node
- 24+
- Memory
- 512MB
Upstash Redis for rate limiting
