Monitoring X used to be simple: TweetDeck, a saved search, done. Then the API went from free to $200/month for the lowest usable tier, TweetDeck moved behind X Premium, and most of the small monitoring tools quietly died or pivoted.
What's left is a strange menu. Enterprise suites that start at four figures a year. Legacy listening tools that treat X as one checkbox among twelve platforms. Native X Pro for $8/month with no alerts. And a new generation of tools with their own data collection that don't touch the API at all.
Quick answer: for one person checking mentions manually, X Pro at $8/mo is enough. For keyword alerts delivered to Slack, Prowlo covers X and Reddit together for $19/mo flat. For boolean filtering, Syften; for PR reports and sentiment, Brand24 or Mention from $49–79/mo. Building your own on the X API starts at $200/mo before you write any code. Full costs and tradeoffs below.
Why is monitoring X so expensive now? (the API problem)
Every monitoring tool needs X data, and since 2023 there are only two ways to get it: pay X for API access, or collect it independently. The API route sets a hard price floor:
This is why "cheap Twitter monitoring tool" mostly stopped existing: any tool paying X's rates has a $200–5,000/mo cost floor to pass on. The tools that stayed affordable either operate at tiny volume, bundle X into a big multi-platform contract, or — like Prowlo — collect data through their own infrastructure and never touch the metered API.
Scraping, the old third way, is explicitly against X's terms of service and enforcement is real. If a tool is suspiciously cheap and won't say how it gets X data, that's your answer — and your risk.
8 tools compared, by what they cost
The table shows the market's actual shape: an $8 manual option, a cluster of $19–30 founder tools, and a jump to $79+ team suites. The gap in the middle — affordable, alert-driven, more than one platform — is small, and it's where the next section lives.
Which Twitter monitoring tool should you pick?
- You check mentions yourself, once a day: X Pro at $8/mo. No alerts, but the columns work.
- You want Slack pings for keywords across X and Reddit: Prowlo — $19/mo flat covers both platforms in one schema, with semantic matching that catches posts your exact keywords miss.
- You live in boolean queries: Syften —
brand AND (broken OR "looking for") NOT hiringis its native language; X costs extra. - You need PR reports and sentiment charts for stakeholders: Brand24 or Mention.
- You have an analyst team and five figures: Brandwatch/Meltwater territory. You're not reading this page.
One structural note: for SaaS and devtools, buying conversations don't stay on one platform. A comparison thread starts on X, and the "which one did you pick?" follow-up lives on r/SaaS. Monitoring X alone answers half the question — which is why we built Prowlo to cover Reddit and X together rather than as separate line items.
Can your AI agent monitor X for you? (MCP)
The newest way to consume X monitoring isn't a dashboard — it's your agent. Prowlo is also an MCP server: Claude, Cursor, or any MCP client can call search_dataset against your watched X accounts and keywords and get back typed JSON, ranked by semantic relevance. "Find this week's posts where someone is frustrated with their current monitoring tool" works as a query, even when no post contains the word "monitoring."
Everything stays read-only: your agent finds, ranks, and drafts — a human posts. Auto-engagement is how X accounts get flagged, so we don't build it.
Setup is one Watcher: pick the keywords and accounts, choose Slack or webhook delivery, done. The keyword tracking guide walks through the same pipeline on the Reddit side.
FAQ
What is a Twitter (X) monitoring tool?
Software that watches X for keywords, brand mentions, or competitor names and notifies you when they appear. Since X's API price increase, tools divide into two camps: those that pay X for API access (with a $200–5,000/mo cost floor) and those that collect data through their own infrastructure.
Is there a free Twitter monitoring tool?
Not really, anymore. X Pro via Premium ($8/mo) is the cheapest workable option — saved-search columns, checked manually. The free alert tools that existed before 2023 died with the API changes; F5Bot, the classic free option, covers Reddit and Hacker News but not X.
Can you monitor X without using the API?
As a user: saved searches and lists, manually. As a buyer: choose a hosted tool with its own data collection. Building your own scraper violates X's terms of service and breaks constantly — it's not a real option for anything you depend on.
Is X Pro (TweetDeck) enough for brand monitoring?
For one person watching one brand name, yes. It has no alerts, no filtering beyond the query, no history export, and no team features — the moment you want a Slack ping instead of another open tab, you've outgrown it.