Most "social media scheduler" searches are looking for a dashboard. If you're a developer, what you actually want is different: something you can call from code, wire into your own product, or automate without touching a UI at all. Here's what to look for, and how OneUp fits.
What "developer-friendly" actually means for a scheduling tool
A real REST API — documented endpoints using standard HTTP verbs, not just Zapier hooks
Programmatic authentication via an API key, not just OAuth built for login screens
Multi-platform coverage from one integration point — Instagram, Facebook, TikTok, X, LinkedIn, Pinterest, YouTube, and Google Business Profile through one API
Support beyond publishing — fetching analytics, replying to comments, managing accounts programmatically
Where OneUp fits this
OneUp has a documented REST API (available on all plans, with some functionality gated by tier) covering scheduling, publishing, comment replies, and analytics across every supported platform. It also has an MCP server — a newer layer built for connecting AI models like Claude, ChatGPT, and Grok directly to your accounts via natural language, rather than hand-written requests.
What building on it looks like
Generate an API key (gear icon → API and MCP)
Reference the docs at docs.oneupapp.io for the endpoints you need
Authenticate requests with your API key
Build whatever you need on top
Who this is for: agencies building internal client tools, SaaS products needing social publishing as a feature, or anyone automating distribution as part of a larger pipeline.
Check out OneUp's API here: www.oneupapp.io