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Anthropic API vs shadcn/ui

API for Claude — frontier models for chat, tool use, agents, and long-context reasoning
vs. Beautifully designed React components you copy-paste into your app

Anthropic website ↗shadcn/ui (OSS) ↗

Pricing tiers

Anthropic API

Opus 4.7 — usage
Input $5 / output $25 / cache-write $6.25 / cache-read $0.50 per 1M tokens. Batch = 50% off.
Custom
Sonnet 4.6 — usage
Input $3 / output $15 / cache-write $3.75 / cache-read $0.30 per 1M tokens. Batch = 50% off.
Custom
Haiku 4.5 — usage
Input $1 / output $5 / cache-write $1.25 / cache-read $0.10 per 1M tokens. Batch = 50% off.
Custom
Anthropic website ↗

shadcn/ui

OSS (MIT)
$0. MIT license. Free forever. No signup. Components copy-pasted into your repo and owned by you.
$0 base (usage-based)
shadcn/ui (OSS) ↗

Free-tier quotas head-to-head

Comparing opus-4-7 on Anthropic API vs oss on shadcn/ui.

MetricAnthropic APIshadcn/ui
discount batch50 % off—

Features

Anthropic API · 0 features

    shadcn/ui · 12 features

    • 50+ Components — Button, dialog, dropdown, form, table, etc.
    • Accessibility — WAI-ARIA compliant.
    • Blocks — Full-page layouts ready to use.
    • Charts — Composable Recharts wrappers.
    • CSS Variables — Themeable via --primary, --background, etc.
    • Custom Registries — Publish your own components via registry spec.
    • Dark Mode — Built-in toggleable theme.
    • Form Components (react-hook-form) — Integrated with react-hook-form + Zod.
    • MCP Server — Query component catalog from AI agents.
    • Radix UI Primitives — Headless accessibility foundation.
    • shadcn CLI — Scaffold + add components.
    • Themes + Theme Editor — CSS vars-based color system.

    Developer interfaces

    KindAnthropic APIshadcn/ui
    CLIClaude Code CLIshadcn CLI
    SDKGo SDK, Java SDK, Python SDK, Ruby SDK, TypeScript SDK (@anthropic-ai/sdk)—
    RESTAWS Bedrock, Google Vertex AI, Microsoft Azure AI, REST API (Messages + Agents)Component Registry
    MCP—shadcn MCP Server
    OTHER—Docs + Component Browser, Theme Customizer
    Staxly is an independent catalog of developer platforms. Some links to Anthropic API and shadcn/ui may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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