Integrate Anthropic (Claude) with Next.js

The complete guide to connecting Anthropic (Claude) and Next.js in Next.js 15.

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Anthropic (Claude) + Next.js
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Pre-configured Anthropic (Claude) & Next.js SDKs.

Secure Webhook & API Handlers (with error logging).

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Optimized for Next.js 15 & TypeScript.

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AI Architecture Guide

This blueprint implements a decoupled architecture for Next.js 15 (Stable) using React 19 Server Actions as a secure orchestration layer. It establishes a type-safe pipeline between a primary database (via Prisma/Drizzle) and an external service provider (via 2026-spec SDKs), ensuring zero-bundle-size impact on the client and robust error handling via zod validation.

lib/integration.ts

1import { z } from 'zod';
2import { db } from '@/lib/database';
3import { ExternalSDK } from 'provider-sdk-v2026';
4
5const RequestSchema = z.object({
6  userId: z.string().uuid(),
7  payload: z.record(z.any())
8});
9
10// Next.js 15 Server Action with React 19 Signature
11export async function syncDataAction(prevState: any, formData: FormData) {
12  'use server';
13
14  const validated = RequestSchema.safeParse({
15    userId: formData.get('userId'),
16    payload: JSON.parse(formData.get('payload') as string),
17  });
18
19  if (!validated.success) return { error: 'Validation failed', issues: validated.error.format() };
20
21  try {
22    // Atomic Database Operation
23    const user = await db.user.findUniqueOrThrow({ where: { id: validated.data.userId } });
24
25    // External SDK Integration (2026 Spec)
26    const client = new ExternalSDK({ apiKey: process.env.SERVICE_SECRET });
27    const response = await client.dispatch({
28      identity: user.email,
29      data: validated.data.payload,
30      timestamp: Date.now()
31    });
32
33    return { success: true, ref: response.id };
34  } catch (err) {
35    console.error('[BLUEPRINT_ERROR]:', err);
36    return { error: 'Internal system sync failed' };
37  }
38}

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