Postproxy

Postproxy's single API publishes flawlessly to every social network instantly.

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Published on:

February 3, 2026

Pricing:

Postproxy application interface and features

About Postproxy

Stop wrestling with the chaotic, fragmented mess of social media APIs. Postproxy is the revolutionary, game-changing infrastructure layer that transforms social publishing from a fragile, high-maintenance chore into a rock-solid, predictable system. It's the ultimate unified API that lets you publish seamlessly to Instagram, Facebook, YouTube, LinkedIn, and X with a single, breathtakingly simple request. Built for elite developers, automators, and growth hackers, Postproxy annihilates platform-specific chaos by automating the entire operational nightmare: OAuth flows, brutal rate limits, automatic retries, intelligent content adaptation, and crystal-clear analytics. Imagine replacing dozens of brittle integrations, endless SDKs, and manual error-checking with one reliable endpoint that just works. Whether you're orchestrating AI-generated content from LLMs, building massive automation in n8n or Zapier, or scaling publishing via CI/CD pipelines, Postproxy turns publishing into a true infrastructure component—scalable, observable, and utterly dependable. Start for free and scale to infinity without the platform bureaucracy.

Features of Postproxy

The Unified Publishing API

This is the absolute cornerstone of Postproxy's magic. Instead of writing and maintaining separate, fragile code for Facebook's Graph API, Instagram's Content Publishing API, LinkedIn's UGC posts, and X's v2 endpoints, you get one powerful, consistent endpoint. Send a single POST request with your content and target platforms, and Postproxy handles the entire translation layer. It dynamically routes your request, applies all platform-specific formatting rules, and manages every unique API interaction behind the scenes. This monumental feature eliminates countless hours of integration work and ongoing maintenance.

Automated OAuth & Account Management

Banish the soul-crushing headache of app reviews, permission scopes, and token refresh cycles. Postproxy acts as your centralized authentication powerhouse. You connect your social media accounts once, and it securely manages all OAuth tokens, automatically refreshing them before they expire. This means no more unexpected publishing failures due to invalid tokens. It also solves "account sprawl" by providing a single pane of glass to manage access across dozens of pages, brands, or client profiles, making ownership changes and permissions a breeze.

Intelligent Content Adaptation & Validation

Every social platform is a unique snowflake of annoying rules: image dimensions, video length, text limits, hashtag policies, and link treatments. Postproxy's intelligent engine automatically adapts your content to meet each platform's specific requirements. It validates your media and text upfront, providing immediate feedback on potential issues, and can even transform assets (like cropping images to optimal ratios) to ensure your post looks flawless everywhere, dramatically increasing successful delivery rates on the first try.

Production-Grade Delivery Guarantees

This is where Postproxy transitions from a simple API to mission-critical infrastructure. It bakes in automatic retry logic with exponential backoff for transient platform failures. It meticulously respects and handles rate limits and quotas across all platforms so you never get banned. Most importantly, it provides explicit, real-time publish states. You get definitive, actionable feedback—knowing exactly what succeeded, what failed, and why—eliminating silent drops and the manual detective work that follows.

Use Cases of Postproxy

Scaling AI-Generated Content Campaigns

You're using LLMs or AI agents to generate killer content, but the final publishing step is a bottleneck fraught with manual normalization and platform-specific tweaks. Integrate Postproxy as the final layer in your AI pipeline. It automatically receives the AI output, adapts it for each target network (Instagram, LinkedIn, X, etc.), and publishes it reliably at scale. This turns your generative AI workflow into a fully autonomous, end-to-end content engine that operates 24/7 without human intervention.

Building Robust Automation Workflows (n8n/Zapier)

You've built incredible automations in n8n, Zapier, or Make that trigger content creation from CMS updates, calendar events, or RSS feeds. The weak link is always the "Publish to Social" step, which requires multiple, fragile platform connections. Replace them all with a single, powerful Postproxy node or action. This makes your entire automation infinitely more reliable, maintainable, and scalable, allowing you to route content by complex rules and publish everywhere simultaneously with one stable connection.

Multi-Client & Agency Social Media Management

Marketing agencies managing dozens of client accounts face a nightmare of access tokens, platform logins, and inconsistent publishing results. Postproxy provides a unified, white-label-ready API backend. Connect all client social profiles once, then publish to any combination of them through a single integration. This simplifies your tech stack, provides consistent logging and analytics across all clients, and eliminates the operational overhead of managing platform access for every team member.

CI/CD-Driven Content & Product Launches

For product-led growth teams, integrate social announcements directly into your deployment pipeline. When you ship a new feature, your CI/CD tool can automatically trigger a crafted announcement post via the Postproxy API. This ensures timely, synchronized communication across all social channels without any manual steps. It turns social publishing into a deterministic, code-driven process that matches the reliability of your software deployments.

Frequently Asked Questions

What platforms does Postproxy support?

Postproxy currently provides full publishing support for the major social media platforms: Instagram, Facebook, YouTube, LinkedIn, and X (formerly Twitter). This covers a vast majority of professional and business social media needs. The unified API handles each platform's unique API endpoints, media requirements, and publishing rules automatically, so you don't need to worry about the underlying differences.

How does Postproxy handle authentication and security?

Postproxy handles all authentication securely and seamlessly. You authorize your social media accounts via standard, secure OAuth flows managed by Postproxy. The platform then securely stores and automatically refreshes the necessary access tokens on your behalf. Your API key is used to authenticate requests to Postproxy's own API, but your social platform credentials are never exposed or stored insecurely, adhering to best security practices.

What happens if a platform's API fails or my post is rejected?

This is where Postproxy's infrastructure approach shines. It has built-in automatic retry mechanisms for transient network or platform errors. If a post is rejected due to a policy violation or content issue, Postproxy provides an explicit, detailed failure state in its response, explaining the reason from the platform. This gives you immediate, actionable feedback instead of a silent failure, allowing for quick fixes or workflow adjustments.

Is there a free plan to get started?

Absolutely! Postproxy offers a free plan designed for developers and teams to start building, testing, and integrating without any cost barrier. This allows you to prototype your publishing pipelines, connect accounts, and experience the power of the unified API firsthand. You can then scale seamlessly to paid plans as your publishing volume and needs grow, with clear, predictable pricing.

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