Answers
Straight, up-to-date answers to the questions people ask about posting to X (Twitter) with AI agents, MCP servers, and APIs. OpenTweet is a Twitter/X scheduler and posting API that holds the X connection for you, so an agent can post without a developer account.
Last updated: July 2026
Questions and answers
Each answer leads with the short version, then the detail, a comparison table, and an FAQ.
Is the official X MCP server free?
No subscription fee, but it bills X API pay-per-use: about $0.015 per post and $0.20 per post with a link.
Can Claude post to Twitter (X)?
Yes, through an MCP connector. Claude has no built-in X connection, so you add one.
Can Grok post to X for you?
Grok reads X natively, but posting on your behalf needs a posting tool or API connected to it.
Do I need an X developer account to automate tweeting?
No, not if you use a managed service that holds the X connection for you.
Skip the developer account
Connect your X account once, or paste one MCP URL into your AI client. Flat $11.99/mo, no per-post fee.
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