X / Twitter Account Monitor — watch accounts, see what changed

Point it at a list of X accounts and get their latest posts with full engagement counts. Run it on a schedule and it also tells you what is new since last time, and which older posts are still gaining — the difference between a snapshot and a feed.

What this is, and what it is not

It monitors accounts. It does not search X.

X's public timeline endpoint returns the 20 most recent posts per account, and its public search endpoint no longer exists. So if you need "every post mentioning a keyword across all of X", this is the wrong tool and you should know that now rather than after paying — there are search scrapers on this store that do that job.

What this does instead, and does properly: watch a defined list of accounts — competitors, clients, journalists, a portfolio — closely and cheaply.

The limit you set is the limit you get

The most-used scrapers on this store are rated in the 3s, and their reviews all say the same thing:

"I set the limit but this actor fetched a lot of records and I spent hundreds of USD in vain"

"The Actor ignores onlyTotal, resultsLimit, onlyAdsNewerThan, and onlyAdsOlderThan"

"filtering tweets based on time is not working... both giving results outside the executed time range"

So here:

• maxTweets and maxCostUsd stop the run, they do not trim the results after your money is spent. The cap counts every row, including change rows, so your bill cannot be doubled by a feature you turned on.
• Date ranges are applied, and an unreadable date stops the run rather than being silently ignored.
• Filtered-out posts are never charged for — replies you excluded and posts below your engagement floor cost nothing.
• The first run never bills you twice. With change tracking on, every post would technically be "new" on run one. Rather than charge for the same post as both a post and a change, run one quietly stores the baseline and run two starts reporting changes.

What you get

Per post: text, createdAt, likes, retweets, replies, quotes, a combined engagement total, hashtags, mentions, links, mediaCount, mediaType, isReply, tweetUrl, plus authorFollowers and authorVerified.

With trackChanges on, extra rows carry changeType:

• new — posted since your last run
• gained — an older post still climbing, with engagementGained, likesGained and retweetsGained since you last looked

What it is for

• Competitor monitoring — what a rival posted this week and what actually landed
• Client reporting — engagement per post, pulled the same way every week
• Journalist and analyst tracking — a watchlist of accounts in one table
• Spotting sleepers — the gained rows show posts still growing hours after publishing

Input

{
  "accounts": ["nasa", "@spacex", "https://x.com/bbcbreaking"],
  "maxTweets": 200,
  "maxCostUsd": 5,
  "trackChanges": true,
  "excludeReplies": true,
  "minEngagement": 100
}

Handles, @handles and full URLs all work, so a column pasted from a spreadsheet is fine.

Reliability

One bad handle never fails the run. An account that is suspended, protected or renamed is recorded in the run summary with the reason while the rest continue.

Requests go through Apify Proxy residential, which is what X answers reliably. Every run writes a summary of what was delivered, what your filters removed, what failed, and what it cost against your cap.

Notes

Reads only public posts, logged out — the same content any visitor sees without an account. No login, no cookies, none of your accounts involved. Protected accounts return nothing by design. Unofficial and not affiliated with X Corp. Posts belong to the people who wrote them; use them in line with applicable laws and terms.