Presigned

Model Context Protocol: Secure S3 Access

Enable live S3 operations with 1 GB of mutable context per object using the Model Context Protocol for secure AI integration.

Jul 20, 2026

Marcus Chen 15 min read

Presigned URLs: Stop Reuse with Single-Use Tokens

Standard presigned URLs last up to 7 days, creating replay risks. Learn to enforce single-use access using DynamoDB conditional writes and serverless tokens.

Jul 14, 2026

Marcus Chen 14 min read

Presigned upload URLs: secure S3 without credentials

Discover how presigned URLs divide large objects into independent parts to maximize efficiency without backend latency or credential risks.

Jul 6, 2026

Marcus Chen 14 min read

Multipart upload secrets: From 72s down to 28s

Combining multipart upload with transfer acceleration cuts large file transfer time by 61 percent.

Jul 2, 2026

Alex Kumar 14 min read