npx skills add ...
npx skills add vercel/vercel-plugin --skill vercel-storage
npx skills add vercel/vercel-plugin --skill vercel-storage
Vercel storage expert guidance — Blob, Edge Config, and Marketplace storage (Neon Postgres, Upstash Redis). Use when choosing, configuring, or using data storage with Vercel applications.
The same skill content is published under more than one repo. The install counts are split across them; any of these commands works.
You are an expert in Vercel's storage options. Know which products are active, which are sunset, and when to use each.
Choose storage provisioning paths in this order:
vercel integration add ... or dashboard). This path auto-provisions accounts/resources and injects environment variables into the linked Vercel project.When using fallback/manual provisioning, you must add/sync environment variables yourself and then re-run vercel env pull .env.local --yes locally.
Fast, scalable storage for unstructured data (images, videos, documents, any files).
Private Storage (public beta): Use access: 'private' for files that should not be publicly accessible. Read them back with get(). Do NOT use private access for files that need to be served publicly — it leads to slow delivery and high egress costs.
Blob Data Transfer: Vercel Blob uses two delivery strategies — Fast Data Transfer (94 cities, latency-optimized) and Blob Data Transfer (18 hubs, volume-optimized for large assets). The system automatically routes via the optimal path.
Use when: Media files, user uploads, documents, any large unstructured data.
Ultra-low-latency key-value store for application configuration. Not a database — designed for config data that must be read instantly at the edge.
Use when: Feature flags, A/B testing config, dynamic routing rules, maintenance mode toggles. Anything that must be read at the edge with near-zero latency.
Do NOT use for: User data, session state, frequently written data. Edge Config is optimized for reads, not writes.
Next.js 16: @vercel/edge-config@^1.4.3 supports cacheComponents and the renamed proxy.ts (formerly middleware.ts).
These packages no longer exist as first-party Vercel products. Use the marketplace replacements:
Serverless Postgres with branching, auto-scaling, and connection pooling. The driver is GA at @neondatabase/serverless@^1.0.2 and requires Node.js 19+.
Build-time safety: The neon() call above throws if DATABASE_URL is not set. Since Next.js evaluates top-level module code at build time, this will crash next build when env vars aren't yet configured (e.g., first deploy before Marketplace provisioning). Use lazy initialization:
WARNING: Do NOT use JavaScript Proxy wrappers around the DB client. A common pattern is wrapping db in a Proxy for lazy initialization. This breaks libraries like NextAuth/Auth.js that inspect the DB adapter object (e.g., checking method existence, iterating properties). The Proxy intercepts those checks and breaks the auth request chain, causing hangs with no error. Use a plain getDb() function or a simple module-level lazy let instead.
Drizzle Kit migrations: drizzle-kit and tsx do NOT auto-load .env.local. Source env vars manually or use dotenv:
This applies to any Node script that needs Vercel-provisioned env vars — only Next.js auto-loads .env.local.
Install via Vercel Marketplace for automatic environment variable provisioning.
If you use Neon CLI as the fallback path, account/project setup is managed on Neon directly instead of through Vercel Marketplace automation.
For Vercel-managed Neon projects, CLI operations require a Neon API key; do not rely on normal browser-auth login flow alone.
Serverless Redis with same Vercel billing integration.
Install via Vercel Marketplace for automatic environment variable provisioning.
Full Postgres database with built-in auth, realtime subscriptions, and storage. Native Vercel Marketplace integration.
Install via Vercel Marketplace: vercel integration add supabase
Type-safe ORM with auto-generated client, migrations, and Prisma Accelerate for connection pooling.
Install via Vercel Marketplace: vercel integration add prisma
Document database with flexible schemas. Available via Vercel Marketplace.
Install via Vercel Marketplace: vercel integration add mongodb-atlas
Reactive backend-as-a-service with real-time sync, serverless functions, and file storage.
Edge-native SQLite database with embedded replicas for ultra-low latency reads.
Install via Vercel Marketplace: vercel integration add turso
| Need | Use | Package |
|---|---|---|
| File uploads, media, documents | Vercel Blob | @vercel/blob |
| Feature flags, A/B config | Edge Config | @vercel/edge-config |
| Relational data, SQL queries | Neon Postgres | @neondatabase/serverless |
| Key-value cache, sessions, rate limiting | Upstash Redis | @upstash/redis |
| Postgres + auth + realtime + storage | Supabase | @supabase/supabase-js |
| Type-safe ORM with migrations | Prisma | @prisma/client |
| Document database, flexible schemas | MongoDB Atlas | mongodb |
| Reactive backend with real-time sync | Convex | convex |
| Edge-native SQLite with replicas | Turso | @libsql/client |
| Full-text search | Neon Postgres (pg_trgm) or Elasticsearch (Marketplace) | varies |
| Vector embeddings | Neon Postgres (pgvector) or Pinecone (Marketplace) | varies |
Drop-in replacement: For minimal migration effort, use @neondatabase/vercel-postgres-compat which provides API-compatible wrappers for @vercel/postgres imports.
Use the Vercel CLI or the Marketplace dashboard at https://vercel.com/dashboard/{team}/stores:
Browse additional storage options at the Vercel Marketplace. Installing via the CLI or dashboard (https://vercel.com/dashboard/{team}/integrations) automatically provisions accounts, creates databases, and sets environment variables.
npm install @vercel/edge-configimport { get, getAll, has } from '@vercel/edge-config'
// Read a single value (< 1ms at the edge)
const isFeatureEnabled = await get('feature-new-ui')
// Read multiple values
const config = await getAll(['feature-new-ui', 'ab-test-variant', 'redirect-rules'])
// Check existence
const exists = await has('maintenance-mode')npm install @neondatabase/serverless// Direct Neon usage
import { neon } from '@neondatabase/serverless'
const sql = neon(process.env.DATABASE_URL!)
const users = await sql`SELECT * FROM users WHERE id = ${userId}`
// With Drizzle ORM
import { drizzle } from 'drizzle-orm/neon-http'
import { neon } from '@neondatabase/serverless'
const sql = neon(process.env.DATABASE_URL!)
const db = drizzle(sql)// src/db/index.ts — lazy initialization (safe for build time)
import { neon } from '@neondatabase/serverless'
import { drizzle } from 'drizzle-orm/neon-http'
import * as schema from './schema'
function createDb() {
const sql = neon(process.env.DATABASE_URL!)
return drizzle(sql, { schema })
}
let _db: ReturnType<typeof createDb> | null = null
export function getDb() {
if (!_db) _db = createDb()
return _db
}# Option 1: Source env vars before running
source <(grep -v '^#' .env.local | sed 's/^/export /') && npx drizzle-kit push
# Option 2: Use dotenv-cli (recommended for scripts)
npm install -D dotenv-cli
npx dotenv -e .env.local -- npx drizzle-kit push
npx dotenv -e .env.local -- npx tsx scripts/seed.tsnpm install @upstash/redisimport { Redis } from '@upstash/redis'
const redis = Redis.fromEnv() // Uses UPSTASH_REDIS_REST_URL & TOKEN
// Basic operations
await redis.set('session:abc', { userId: '123' }, { ex: 3600 })
const session = await redis.get('session:abc')
// Rate limiting
import { Ratelimit } from '@upstash/ratelimit'
const ratelimit = new Ratelimit({
redis,
limiter: Ratelimit.slidingWindow(10, '10s'),
})
const { success } = await ratelimit.limit('user:123')npm install @supabase/supabase-js @supabase/ssrimport { createClient } from '@supabase/supabase-js'
const supabase = createClient(
process.env.NEXT_PUBLIC_SUPABASE_URL!,
process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!
)
const { data, error } = await supabase.from('users').select('*')npm install prisma @prisma/client
npx prisma initimport { PrismaClient } from '@prisma/client'
const prisma = new PrismaClient()
const users = await prisma.user.findMany()npm install mongodbimport { MongoClient } from 'mongodb'
const client = new MongoClient(process.env.MONGODB_URI!)
const db = client.db('myapp')
const users = await db.collection('users').find({}).toArray()npm install convex
npx convex devimport { query } from './_generated/server'
import { v } from 'convex/values'
export const getUsers = query({
args: {},
handler: async (ctx) => {
return await ctx.db.query('users').collect()
},
})npm install @libsql/clientimport { createClient } from '@libsql/client'
const turso = createClient({
url: process.env.TURSO_DATABASE_URL!,
authToken: process.env.TURSO_AUTH_TOKEN!,
})
const result = await turso.execute('SELECT * FROM users')- import { sql } from '@vercel/postgres'
+ import { neon } from '@neondatabase/serverless'
+ const sql = neon(process.env.DATABASE_URL!)
- import { kv } from '@vercel/kv'
- await kv.set('key', 'value')
- const value = await kv.get('key')
+ import { Redis } from '@upstash/redis'
+ const redis = Redis.fromEnv()
+ await redis.set('key', 'value')
+ const value = await redis.get('key')# Install a storage integration (auto-provisions env vars)
vercel integration add neon
vercel integration add upstash
# List installed integrations
vercel integration list