--- title: A Guide to Tool Calling with the TypeScript AI SDK description: Tool calling bridges AI models with real-world data by allowing them to execute functions and access external resources. This guide demonstrates implementing... canonical: https://daily.dev/posts/a-guide-to-tool-calling-with-the-typescript-ai-sdk-f11xvpxtm twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A Guide to Tool Calling with the TypeScript AI SDK | daily.dev og:description: Tool calling bridges AI models with real-world data by allowing them to execute functions and access external resources. This guide demonstrates implementing... og:url: https://daily.dev/posts/a-guide-to-tool-calling-with-the-typescript-ai-sdk-f11xvpxtm og:image: https://api.daily.dev/og/posts/F11XVPxTm.png og:image:alt: A Guide to Tool Calling with the TypeScript AI SDK og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A Guide to Tool Calling with the TypeScript AI SDK **[Telerik](https://daily.dev/sources/telerik)** · 11 min read · 0 upvotes · 0 comments ## Summary Tool calling bridges AI models with real-world data by allowing them to execute functions and access external resources. This guide demonstrates implementing custom tools (like getCurrentTime) and provider-native tools (like Gemini's url_context) using the Vercel AI SDK. The tutorial walks through the complete flow: the model evaluates user requests, generates tool call requests, the SDK executes functions, and the model formulates responses using the results. Developers learn to transform isolated chatbots into agents capable of fetching web content, accessing APIs, querying databases, and performing real-time operations through a simple, orchestrated pattern. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Learning Vercel AI SDK—Part 2: Creating Your First Agent](https://daily.dev/posts/learning-vercel-ai-sdk-part-2-creating-your-first-agent-jc5omyhsf) · Telerik · 0 upvotes · 0 comments - [Building AI Agents with TypeScript AI SDK](https://daily.dev/posts/building-ai-agents-with-typescript-ai-sdk-wzwygudhc) · Telerik · 1 upvotes · 0 comments - [Build Your First AI App in 30 Min: TypeScript AI SDK, Gemini](https://daily.dev/posts/build-your-first-ai-app-in-30-min-typescript-ai-sdk-gemini-v3p9xqiqx) · Telerik · 0 upvotes · 0 comments - [How to Build an AI Agent with Function Calling in Node.js Using Google Gemini](https://daily.dev/posts/how-to-build-an-ai-agent-with-function-calling-in-node-js-using-google-gemini-h4y7vuqu1) · freeCodeCamp · 3 upvotes · 0 comments --- Tags: [#ai](https://daily.dev/tags/ai), [#nodejs](https://daily.dev/tags/nodejs), [#typescript](https://daily.dev/tags/typescript), [#vercel](https://daily.dev/tags/vercel), [#google-gemini](https://daily.dev/tags/google-gemini) [View this post on daily.dev](https://daily.dev/posts/a-guide-to-tool-calling-with-the-typescript-ai-sdk-f11xvpxtm) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A Guide to Tool Calling with the TypeScript AI SDK","url":"https://daily.dev/posts/a-guide-to-tool-calling-with-the-typescript-ai-sdk-f11xvpxtm","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-guide-to-tool-calling-with-the-typescript-ai-sdk-f11xvpxtm"},"datePublished":"2026-01-23T16:59:33.414Z","dateModified":"2026-01-23T16:59:55.420Z","description":"Tool calling bridges AI models with real-world data by allowing them to execute functions and access external resources. 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