How to Integrate Later with V0

Open V0 at v0.dev and describe the visual content calendar or scheduling interface you want to build. Later integrations work best when the UI mirrors the kind of visual, grid-based content planning that Later is known for — think image thumbnails, platform color coding, and calendar-style layouts rather than plain data tables. Be specific with V0 about which data fields you need from Later: post caption, scheduled time, media URL, platform name, and post status (draft, scheduled, or published). Tell V0 the API route paths your component will call (/api/later/posts, /api/later/analytics) and the expected response shape. For calendar views, describe how posts should be grouped — by day, by platform, or by week. V0 generates responsive components with Tailwind CSS that handle loading states and empty states naturally when you describe them. Mention that posts should show a loading skeleton while fetching and a friendly empty state message if no posts are scheduled for the selected period. After generating the component, use V0's Git panel to push to your connected GitHub repository, which triggers an automatic Vercel preview deployment.

Create the Next.js API routes that interface with Later's REST API. Later uses bearer token authentication — include your access token in every request as 'Authorization: Bearer {LATER_ACCESS_TOKEN}'. The base URL is https://api.later.com/v2. Key endpoints include: GET /v2/posts for listing scheduled posts (supports query params: profile_id, start_date, end_date, status), GET /v2/profiles to list connected social profiles and their IDs, POST /v2/posts to create a new scheduled post, and DELETE /v2/posts/{postId} to remove a scheduled post. Later's API returns posts with a data array where each post object includes id, caption, scheduled_time, social_profile (with platform and account name), media (array of media objects with urls), and status. Create a unified route at app/api/later/posts/route.ts that handles both GET (fetch posts) and POST (create post) operations. Later supports scheduling posts for specific date-times using ISO 8601 format in the scheduled_time field. For fetching posts within a date range, pass start_date and end_date as ISO 8601 strings. The API is paginated — posts return a meta object with pagination details that you can use to implement load-more functionality for large content queues.

1// app/api/later/posts/route.ts
2import { NextRequest, NextResponse } from 'next/server';
3
4const LATER_API_BASE = 'https://api.later.com/v2';
5
6function getLaterHeaders(): Record<string, string> {
7  return {
8    Authorization: `Bearer ${process.env.LATER_ACCESS_TOKEN}`,
9    'Content-Type': 'application/json',
10  };
11}
12
13export async function GET(request: NextRequest) {
14  const token = process.env.LATER_ACCESS_TOKEN;
15
16  if (!token) {
17    return NextResponse.json(
18      { error: 'Later API is not configured' },
19      { status: 500 }
20    );
21  }
22
23  const { searchParams } = new URL(request.url);
24  const profileId = searchParams.get('profileId');
25  const days = parseInt(searchParams.get('days') || '14', 10);
26  const status = searchParams.get('status') || 'scheduled';
27
28  const startDate = new Date().toISOString();
29  const endDate = new Date(
30    Date.now() + days * 24 * 60 * 60 * 1000
31  ).toISOString();
32
33  const params = new URLSearchParams({
34    start_date: startDate,
35    end_date: endDate,
36    status,
37  });
38
39  if (profileId) params.set('profile_id', profileId);
40
41  try {
42    const response = await fetch(
43      `${LATER_API_BASE}/posts?${params.toString()}`,
44      { headers: getLaterHeaders() }
45    );
46
47    if (!response.ok) {
48      const errorData = await response.json();
49      throw new Error(errorData.message || `Later API error: ${response.status}`);
50    }
51
52    const data = await response.json();
53    return NextResponse.json(data);
54  } catch (error) {
55    const message = error instanceof Error ? error.message : 'Unknown error';
56    console.error('Later API fetch error:', message);
57    return NextResponse.json({ error: message }, { status: 500 });
58  }
59}
60
61interface CreatePostRequest {
62  profileId: string;
63  caption: string;
64  scheduledTime: string; // ISO 8601 format
65  mediaUrls?: string[];
66}
67
68export async function POST(request: NextRequest) {
69  const token = process.env.LATER_ACCESS_TOKEN;
70
71  if (!token) {
72    return NextResponse.json(
73      { error: 'Later API is not configured' },
74      { status: 500 }
75    );
76  }
77
78  let body: CreatePostRequest;
79  try {
80    body = await request.json();
81  } catch {
82    return NextResponse.json({ error: 'Invalid request body' }, { status: 400 });
83  }
84
85  const { profileId, caption, scheduledTime, mediaUrls } = body;
86
87  if (!profileId || !caption || !scheduledTime) {
88    return NextResponse.json(
89      { error: 'profileId, caption, and scheduledTime are required' },
90      { status: 400 }
91    );
92  }
93
94  const payload: Record<string, unknown> = {
95    profile_id: profileId,
96    caption,
97    scheduled_time: scheduledTime,
98  };
99
100  if (mediaUrls?.length) {
101    payload.media_urls = mediaUrls;
102  }
103
104  try {
105    const response = await fetch(`${LATER_API_BASE}/posts`, {
106      method: 'POST',
107      headers: getLaterHeaders(),
108      body: JSON.stringify(payload),
109    });
110
111    if (!response.ok) {
112      const errorData = await response.json();
113      throw new Error(errorData.message || 'Failed to create post');
114    }
115
116    const data = await response.json();
117    return NextResponse.json({ success: true, post: data.data });
118  } catch (error) {
119    const message = error instanceof Error ? error.message : 'Unknown error';
120    console.error('Later post creation error:', message);
121    return NextResponse.json(
122      { error: 'Failed to schedule post', details: message },
123      { status: 500 }
124    );
125  }
126}

Configure Later credentials in Vercel and deploy your integration. Open the Vercel Dashboard, navigate to your project, and go to Settings → Environment Variables. Add LATER_ACCESS_TOKEN with your Later API token from Later Settings → Account → API Tokens. The token is a long string that grants access to your Later account — store it without the NEXT_PUBLIC_ prefix since it must remain server-side only. If you want to filter the calendar by specific profiles, add profile-specific variables: LATER_INSTAGRAM_PROFILE_ID, LATER_TIKTOK_PROFILE_ID, and so on, using the IDs retrieved from the /v2/profiles endpoint. Set all variables for Production, Preview, and Development scopes, then save and trigger a redeployment. After the deployment completes, open your deployed URL and verify the content calendar loads your Later scheduled posts. For local development, create a .env.local file with LATER_ACCESS_TOKEN set to your token, then run npm run dev to test the API routes against real Later data before deploying. If you encounter 403 errors in the deployed environment, verify that your Later plan includes API access — Later restricts API access to Growth and Agency plan subscribers. For teams managing multiple brand accounts, RapidDev can help architect a multi-workspace Later integration that handles profile switching and client-specific dashboards.