Postproxy Blog
Technical guides on social media API integration, multi-platform publishing, and automation workflows. Engineering notes from the team building Postproxy.
White-Label Social Media OAuth: A Branded Connect Screen Is Not White Label
What white-label social account connection really means: who controls the OAuth consent screen, why a branded page before it changes nothing, and the quota trade-offs of your own app.
Your AI already knows your business. Now let it help you with your front desk.
Café, salon, small shop: messages sit in four apps and your Google listing is out of date. Postproxy MCP puts messages, posts, and your Google Business Profile into the Claude or ChatGPT chat you already use.
WhatsApp Business Messaging in the Same API as Your Social DMs
WhatsApp Business is usually a separate integration with its own auth, templates, and messaging window. Here's what it takes to run it through the same chats and messages endpoints as Messenger, Instagram, and Telegram.
Postproxy now covers the full Google Business Profile API: posts, reviews, profile management, and analytics
Every Google Business Profile surface behind one API key — local posts, events, offers, photos, reviews, hours, attributes, services, food menus, action links, and per-location performance. No Google API access request.
What X's Open-Source Algorithm Says About Automated Posting
X open-sourced its For You ranking code. The real weights, why the viral '468 likes' claim is wrong, and what the code says about posting through an API.
Facebook Image Sizes and Post Dimensions (2026)
Facebook image sizes for feed posts, Stories, Reels, and link previews — plus the file limits that apply when you publish programmatically.
How to Automate YouTube Uploads
Four ways to automate YouTube uploads — a workflow tool, the Data API, a publishing API, or a repurposing pipeline — and the two real limits: the 100-upload daily quota and the compliance audit that keeps unverified apps private.
How to Automate X (Twitter) Posts
Automate posting to X — the API tiers and what each costs, scheduling, threads, rate limits, and the rules that get automated accounts suspended.
How to Automate Instagram Posts
Four ways to automate Instagram posting — scheduling tools, workflow automation, the Graph API directly, or a unified API — and which fits which situation.
Direct messages: chats, private replies, and ig.me referrals via API
Postproxy now reads and sends 1:1 direct messages on Facebook Messenger, Instagram, Telegram, and Bluesky — including private replies that turn a comment into a DM and ig.me / m.me link referrals with campaign attribution.
Profile stats: follower and engagement timeseries via API
Postproxy now records follower counts and engagement metrics for every connected profile across all ten networks, exposed as a unified timeseries endpoint.
Google Business Profile support added to Postproxy
Postproxy now publishes local posts to Google Business Profile locations and replies to reviews — three post formats and review management behind the same posts API.