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BlocksBasics
Claude Structured Output
Claude Structured Output
Generate structured output from AI prompts using Anthropic Claude. Create typed data with generateText and Output.object().
Use this when your app runs on Anthropic Claude and needs typed JSON back from a prompt, generated in full with generateText and Output.object.
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Problems solved
Technical challenges this implementation handles out of the box.
- Generate schema-validated objects with Claude via generateObject
- Return complete structured JSON in one response
- Demonstrate Anthropic structured output through the AI SDK
Use cases
Products and workflows this pattern is designed to support.
- Claude structured data extractors
- Schema-backed API response demos
- Classification and tagging tools
- AI SDK generateObject onboarding with Claude
Compare with
Similar patterns, and when each one is the better fit.
OpenAI Structured OutputFreeUse this when you need an OpenAI model to return one complete, schema-validated object in a single response, such as extracted fields or tags.
Streaming Structured OutputFreeUse this when you need a typed, schema-validated object to stream into the UI and render field by field as partial JSON arrives.
Gemini Structured OutputFreeUse this when your app runs on Gemini and you want typed JSON from a prompt via generateText with Output.object, delivered all at once.
Generate TextFreeUse this when you need a minimal API route that calls an AI Gateway model with generateText and returns one finished plain text response.
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: ANTHROPIC_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
ANTHROPIC_API_KEYGet key
Capabilities
AI SDK APIs
generateTextOutput.objectProviders
Claude
Files added
5 files
app/page.tsxapp/layout.tsxcomponents/basic-generate-object-form.tsxapp/api/generate-object/route.tsapp/api/generate-object/schema.ts
Dependencies
12 total
npm packages
5AISDKlucide-reactNext.jsReactZod
Registry components
input-groupseparatoremptyitemalertscroll-areatooltip
Critical files
2 files
generate-object/route.tsAPI route implementing structured object generation using Anthropic Claude with AI SDK generateText and Output.object pattern.
generate-object/schema.tsZod schema defining the structured output shape used by the generate-object route for validated AI output.
Requirements
- Complexity
- Beginner
