Cross-Posting to Social Networks via API
How to publish the same content to X, Instagram, Facebook, LinkedIn, Threads, TikTok, and YouTube through their APIs — and what makes it harder than it looks.
Postproxy Blog
Engineering notes, product updates, and automation playbooks from Postproxy.
Image & Video Uploads Across Social APIs
How each social media platform handles media uploads differently — chunked, container, resumable, pull-from-URL — and what it takes to support all of them.
X (Twitter) API Posting: Integration Guide
Understanding OAuth authentication, the chunked media upload flow, and API endpoints for posting to X.
Facebook API Posting: Integration Guide
Understanding permissions, app review, video uploads, and API endpoints for Facebook Page publishing.
Publish-first workflows
Why automation should be designed to finish with publishing, not stop right before it
Remote MCP: Publishing for Traveling Agents
Why we built a remote MCP server for Postproxy, and how it changes what AI agents can do without infrastructure overhead.
Better control before you publish
How reworked post creation, drafts, and review flows improve automated social media publishing.
What you get when publishing stops being manual
Why automated social media publishing improves reliability, focus, and productivity.
Retries are a policy, not a feature
Why retrying failed publishing requests is a product decision, not a technical toggle.
Partial Success in Social Media Publishing
Why multi-platform publishing rarely succeeds everywhere at once — and why systems must be built for that.
When Postproxy Beats Social Media Tools
Why infrastructure-based publishing wins over tools like Hootsuite and Buffer in automated workflows.
Human-in-the-loop is a state, not a fallback
Why human involvement should be modeled explicitly in automated publishing systems.