Reliable Social Delivery as Infrastructure
Crossly provides a delivery-first API and automation layer for publishing to social platforms — reliably and at scale.
OAuth • API • MCP ready
The Problem
Social posting is still treated as a UI problem.
But for developers, it’s an infrastructure problem:
- •APIs fail silently
- •Tokens expire
- •Retries are inconsistent
- •Posting logic leaks into product code
Most social tools weren’t built for automation.
The Core Idea
Crossly treats social posting like delivery infrastructure.
Posts are objects.
Platforms are destinations.
Delivery is observable, retryable, and explicit.
What You Get
Delivery-first posting
- Explicit success and failure states
- Retries and idempotency
- No "queued but didn’t post" ambiguity
API + OAuth
- Token-based access
- Multi-account support
- Secure, standards-based auth
MCP support
- Automate posting via agents and LLM workflows
- Trigger posts from events, workflows, or tools
Composable primitives
- post_create_draft (MCP)
- post_publish_now (MCP)
- post_schedule (MCP)
No opinionated dashboards required.
Available via MCP (Model Context Protocol) — integrate with AI agents and LLM workflows.
Built on Real Usage
Crossly isn’t an abstract API.
It’s used daily by creators publishing real posts — which means:
- Real failure modes are surfaced
- Edge cases are tested in production
- Delivery guarantees actually matter
You inherit that reliability.
Use Cases
If your product needs to show up, Crossly handles the last mile.
Product updates triggered from deploys
Automatically announce releases and updates across platforms when you ship.
AI agents with social presence
Give your AI agents the ability to post and engage on social platforms.
Founder tools with built-in distribution
Build tools that help founders show up consistently without manual work.
Internal tools that need outbound posting
Add social posting capabilities to your internal dashboards and workflows.
What Crossly Is Not
- ✗Not a social media manager
- ✗Not a marketing dashboard
- ✗Not a growth hack tool
It’s infrastructure.
Use it directly — or hide it behind your product.
Build on Crossly
Reliable social delivery, without reinventing the plumbing.
Also used by creators publishing daily across social platforms.