vercel-blob

SKILL.md

Secure file uploads and CDN delivery for Next.js with presigned tokens and multipart support.

Supports server-side uploads via put() and client-side uploads with presigned tokens via handleUpload() to avoid exposing credentials

Handles files up to 500MB with automatic multipart upload; client uploads bypass the 4.5MB serverless function limit

Includes file listing with cursor-based pagination, deletion, and content-type management for proper browser handling

Prevents 16 documented issues including token expiration on large files, filename collisions, cross-browser compatibility, and pathname validation errors

Vercel Blob

Last Updated: 2026-01-21
Version: @vercel/blob@2.0.0
Skill Version: 2.1.0

Quick Start

# Create Blob store: Vercel Dashboard → Storage → Blob
vercel env pull .env.local  # Creates BLOB_READ_WRITE_TOKEN
npm install @vercel/blob