One API, All Social Platforms.
Stop wrestling with a dozen different social media APIs. CrosspostAPI provides a single, clean REST API to publish content, manage accounts, and track performance across all major social networks. Ship your product faster.
Built for
AI Agent Developers
Building autonomous agents that interact with social media.
SaaS Founders
Adding social scheduling or publishing to your platform.
Marketing Agencies
Creating custom automation tools and client dashboards.
Social publishing shouldn't drain your engineering team
Building and maintaining individual platform integrations is a full-time job. Here's what developers face without a unified API.
Endless API Integrations
Each social platform has its own unique, complex, and poorly documented API. Integrating and maintaining them drains engineering resources that could be spent on your core product.
Complex Authentication Hell
Managing OAuth 2.0 flows, refresh tokens, and user permissions for multiple networks is a significant security and engineering burden. One mistake can break your entire integration.
Constant Breaking Changes
Social media APIs change constantly. What works today might be deprecated tomorrow, forcing you to scramble for fixes and updates just to maintain basic functionality.
How it works
Three steps from signup to publishing across every connected platform.
Get Your API Key
Sign up in seconds and generate your universal API key from the developer dashboard.
Connect Accounts
Use our secure, pre-built authentication flow to let your users connect their social media profiles. We handle all the token management.
Publish Everywhere
Make a single API call to POST /v1/publish with your content, and CrosspostAPI distributes it to all connected platforms automatically.
Everything you need to ship social publishing
A complete toolkit for developers — from account management to post-level analytics.
Managed Authentication
Forget OAuth. Our secure, drop-in connection flow lets your users authorize their accounts safely, while we manage the complexities of token storage, renewal, and security behind the scenes.
Detailed Post Analytics
Go beyond 'fire and forget'. Track engagement metrics like likes, comments, shares, and reach for every post you send, all accessible via our Analytics API endpoint.
Built for production workloads
Every feature you need to integrate social publishing into your application — without the maintenance burden.
Unified API Endpoint
Publish text, images, and videos to X (Twitter), Instagram, Facebook, LinkedIn, Pinterest, Threads, and more with one simple, predictable API request.
Developer-First Dashboard
Monitor your API usage, view request logs in real-time, manage your connected accounts, and rotate API keys from our clean and intuitive developer dashboard.
Real-time Webhooks
Get instant notifications about the status of your posts. Configure webhooks to be notified of successful posts, delivery failures, or user deauthorizations.
Reliable & Scalable Infrastructure
Built on enterprise-grade infrastructure, CrosspostAPI is designed for high-volume applications, ensuring your posts are delivered quickly and reliably every time.
Post Analytics API
Track engagement metrics like likes, comments, shares, and reach for every post. Pull analytics programmatically via a dedicated API endpoint.
Fast Integration
RESTful endpoints with predictable responses. Get from signup to your first published post in minutes, not weeks.
CrosspostAPI vs. the status quo
Stop juggling spreadsheets and one-off scripts. Compare a unified API against building and maintaining integrations yourself.
Simple, transparent pricing
Start free with 50 posts per month. Scale to Pro at $29/mo when you're ready.
Developer
$0/mo
- 50 posts per month
- 3 connected social accounts
- All supported platforms
- Community support
Pro
$29/mo
- 1,500 posts per month
- 15 connected social accounts
- Post-level analytics API
- Standard email support
Need more volume? See all plans
Frequently asked questions
What is CrosspostAPI?
Which social media platforms do you support?
Do I need my own developer app for each social network?
How does the monthly post limit work?
What happens if I go over my plan's post limit?
Can I cancel my subscription at any time?
Is there a free plan to test the API?
Start publishing everywhere today
Join developers and AI agent builders who ship social publishing features in days, not months. Create your free account and get your API key in minutes.