What is OpenTweet?
Quick answer
OpenTweet is an X (Twitter) scheduler and AI writer at opentweet.io, priced from $11.99 per month. It drafts tweets and threads, schedules and auto-publishes them, learns a style profile from your tweets, and, distinctively, exposes an MCP server and API so AI agents can post to X through it. It is X-only, early-stage, and built by a solo indie developer.
OpenTweet's tagline is "the posting layer for X, built for AI agents." That captures its split personality: on one side it is a cheap, capable X scheduler with AI writing, evergreen recycling, and analytics; on the other, it is a developer tool that lets automations and AI agents post to X without wrestling with X's own API. This explainer covers what it does, who it fits, the pricing, that distinctive agent angle, the honest state of its reviews, and where it fits against the field.
Who OpenTweet is for
There are two audiences. The first is budget-minded X creators and founders who want a cheap scheduler with AI drafting and evergreen recycling. The second, and the more distinctive fit, is developers, indie hackers, and anyone running AI agents who wants those agents to post to X programmatically. If you fall in the second group, OpenTweet's agent layer is a genuinely useful shortcut. It is X-only today (the site lists LinkedIn, Bluesky, and Threads as roadmap), so a creator who needs LinkedIn now will not find it here.
The distinctive angle: posting from AI agents
This is the reason OpenTweet stands out. It ships an MCP server (roughly 30 tools) plus a REST API and CLI, so you can connect an AI agent or an automation and have it post tweets, publish threads, batch-schedule, and fetch analytics, all without the agent holding its own X developer credentials or paying X's per-call API costs. OpenTweet holds the X connection; the agent calls OpenTweet's tools. For someone building AI-driven content workflows, that removes real friction, and it is a wedge most X tools do not have. It also offers connectors that auto-post from sources like RSS feeds, code repositories, and payment events.
OpenTweet's features
- AI writer (AI Studio): a chat interface, with a choice of AI models, that drafts tweets and threads you save as drafts.
- Voice Learning: builds a style profile from your tweets (vocabulary, emoji and punctuation habits, humor, sentence structure), injected at generation. No per-draft voice score.
- Scheduling: a visual calendar with drag-and-drop, a best-time heatmap from your engagement, and batch scheduling.
- Evergreen queue: recycles your best posts automatically on a cooldown.
- Threads (up to 25 tweets), X Articles, AI image and short video generation, and analytics on tweets and replies.
- Connectors: auto-post from RSS, code repositories, payment events, and custom webhooks.
- The agent layer: an MCP server (~30 tools), REST API, and CLI, plus a Chrome companion extension.
One thing to know about posting posture: OpenTweet auto-publishes scheduled posts on autopilot (and connectors auto-post from your sources). That is convenient, but it is a different model from an assistive tool that asks you to confirm each post. We found no evidence of reply or DM automation, so there is no obvious account-safety exposure there, but if you prefer to approve everything before it ships, factor the autopilot in.
OpenTweet pricing (2026)
OpenTweet is cheap, which is much of its pitch. The Pro plan is $11.99/mo (around $9.99 billed annually) and is independently corroborated as its headline price. Higher tiers, Advanced at $29/mo and Agency at $49/mo, add more daily posts, AI generations, and connected accounts, though those upper prices are currently only on the vendor's own page (some third-party listings still show older, lower numbers, so they appear to have risen recently). There is a 7-day trial. Every plan includes the AI writing, connectors, MCP server, and REST API.
| Tier | Monthly | Roughly |
|---|---|---|
| Pro | $11.99 | 20 posts/day, 1 account, full AI + MCP |
| Advanced | $29 | 100 posts/day, up to 3 accounts |
| Agency | $49 | 300 posts/day, up to 10 accounts |
A note on OpenTweet's reviews
Be clear-eyed about how early this is. OpenTweet launched in late 2025 and is run by a solo indie developer (Branko Petric, who builds a small family of tools). Third-party validation is thin: a couple of seeded five-star Capterra reviews, negligible Product Hunt traction, an unrated Chrome extension, and no G2 or Trustpilot presence. Its homepage advertises large user counts, but payment-verified data points to a few hundred paying subscribers, so read those badges with skepticism. None of that means it is a bad tool for the money, but you are backing a brand-new indie product, so use the trial and judge it yourself, especially before you route an automation through it.
Strengths and limitations
Where OpenTweet is strong
- Price: one of the cheapest full-featured X schedulers at $11.99/mo.
- The agent layer: MCP and API posting for AI agents is a genuinely distinctive wedge.
- Capable scheduling, evergreen recycling, threads, X Articles, and connectors.
- Voice Learning and AI drafting included even on the entry tier.
Where OpenTweet is thin
- X-only today (LinkedIn and others are roadmap, not shipped).
- Voice Learning has no per-draft voice score, so you cannot see how closely a draft matches you.
- Very new and solo-run, with near-zero independent validation.
- Auto-publishes on autopilot, which not everyone wants; upper-tier prices are vendor-only.
OpenTweet vs VoiceMoat, and alternatives
We build VoiceMoat, so treat this as biased but honest, and these two are aimed at different jobs. OpenTweet's wedge is cheap scheduling plus letting AI agents post to X; voice, by its own framing, is table-stakes rather than the point, and it shows no per-draft voice signal. VoiceMoat's wedge is the opposite: a voice you can verify (a visible read of how many of your voice signals line up) across X and LinkedIn, with assistive posting rather than autopilot. If your goal is the cheapest scheduler or programmatic agent posting, OpenTweet is a strong, inexpensive pick. If your goal is sounding like yourself and being able to prove it, VoiceMoat fits better, and covers LinkedIn too.
For the wider field, see the best AI writing tools for Twitter and the best Twitter tools of 2026.
Is OpenTweet worth it?
For $11.99/mo, OpenTweet is worth trying if you want a cheap X scheduler or you specifically want AI agents to post to X through a simple layer. The 7-day trial is the way to test it. Weigh the caveats honestly: it is X-only, brand-new, solo-run, with little independent validation, it auto-publishes on autopilot, and its voice learning has no visible match read. If you want a verifiable voice across both X and LinkedIn, or a longer track record, compare it against a two-platform, voice-verifying tool like VoiceMoat first, and judge both on your own writing.