Building an AI Social Media Agent with LangGraph
A full walkthrough for building a LangGraph agent that decides what to post and publishes it through a social media REST API, with runnable Python code.
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19 posts
LinkedIn has two swipeable formats and most guides confuse them. A multi-image post is 2 to 9 photos. A document post is a PDF that renders as a page-turner and takes up to 300 pages. Here is how to make each, and which one people mean when they say carousel.
Instagram's own tools cap out fast, third-party schedulers charge per seat, and the API has a 25-posts-per-day ceiling most people find the hard way. Here is what each method can really do and how to load a month of content in one go.
Instagram publishing needs a Business or Creator account and, since Business Login for Instagram shipped, no longer needs a Facebook Page at all. Here is the access path, the two-step container flow, and the error 9007 that catches every new integration.
Building social posting from scratch means maintaining OAuth integrations across six platforms that each change their APIs independently. A social posting API handles all of that. Here is how to integrate one in about a week.
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