Four of the nine companies commonly named in an "X monitoring tools" comparison no longer exist as independent businesses. Talkwalker was bought by Hootsuite. Keyhole was bought by Muck Rack. Digimind was absorbed into Onclusive, and its own website is closing down. Buzzsumo was bought by Brandwatch, and Brandwatch itself was later bought by Cision. That leaves four of the category's best-known names — Meltwater, Sprout Social, Determ, and Agorapulse — still running as their own companies, at the same time that X's developer API stopped offering any free tier at all.
The market consolidated while nobody at the indie level was watching
- 2017-10
- BuzzSumo, a content and PR discovery tool, is acquired by Brandwatch.
- 2021-02
- Brandwatch itself is acquired by Cision, a PR-software company, for a reported $450M — taking BuzzSumo along as a second-hand acquisition.
- 2022 (reported)
- Digimind is absorbed into Onclusive; the Digimind brand is fully discontinued.
- 2023-02
- X cuts its free developer API tier to roughly 1,500 reads a month and introduces a paid Basic tier at $100.
- 2024-04
- Talkwalker is acquired by Hootsuite and rebranded 'Lumen by Talkwalker.'
- 2024-09
- Keyhole is acquired by Muck Rack — Muck Rack's first-ever acquisition.
- 2025-06 (reported)
- Tribescaler, a smaller AI tweet-hook generator aimed at indie users, is discontinued.
- 2026-02-06
- X makes pay-per-use the default for new developers: no free tier, and no Basic or Pro signup option.
- 2026-03-19 (scheduled)
- digimind.com is set to close permanently, redirecting fully to Onclusive.
- 2026-07-01
- Black Magic, another indie-scale X growth tool, shuts down.
Source: Company announcements and contemporaneous reporting, compiled 2026-08. X API dates from third-party developer blogs; X's own pricing page returned a 402 error when we tried to check it.
The pattern runs the same direction at every size of company: enterprise social-listening vendors get absorbed into bigger PR and communications conglomerates, and the smaller, indie-priced growth tools shut down outright. Neither tier looks especially stable right now.
Nine companies, four still independent — and what they cost
Of the nine companies commonly named as this category's leaders, only Meltwater, Sprout Social, Determ, and Agorapulse still operate as their own, standalone businesses. The rest sit inside a larger parent.
| # | Company | Ownership status | Entry price |
|---|---|---|---|
| 1 | Brandwatch | Owned by Cision since 2021 | Not published (third-party estimate: roughly $800–1,000/month professional tier; enterprise contracts reported at $36,000–$50,000+/year) |
| 2 | Meltwater | Independent (taken private 2023 by Marlin Equity and Altor) | Not published (third-party estimate: roughly $6,000–$100,000+/year) |
| 3 | Talkwalker | Owned by Hootsuite since 2024, rebranded 'Lumen by Talkwalker' | Not published — custom quote only |
| 4 | Sprout Social | Independent, publicly traded (NASDAQ: SPT) | $79/seat/month (Listening requires Standard tier, $199/seat/month, and up) |
| 5 | Keyhole | Owned by Muck Rack since 2024 | Not published on own site; third-party sources report $179–$999/month |
| 6 | BuzzSumo | Owned by Brandwatch, then Cision | $199/month |
| 7 | Agorapulse | Independent, privately held | $79/month (annual); X reporting requires a separate $69/month add-on |
| 8 | Determ | Independent, privately held | €99/month |
| 9 | Digimind | Absorbed into Onclusive; own site closing March 2026 | No independent pricing available |
Note the two different kinds of "not published" here. Brandwatch, Meltwater, and Talkwalker keep pricing off their sites entirely — the numbers above come from third-party aggregators (Vendr, Capterra, SocialChamp), not from the companies themselves, and should be read as estimates rather than confirmed rates. Sprout Social, Agorapulse, Determ, and BuzzSumo publish real numbers, which is itself a form of positioning: in a market where the biggest names quote custom prices, publishing a number is how the mid-tier competes.
What the four survivors are actually selling
Each of the four independent companies leans on a different self-reported number to make its case. Meltwater, taken private in 2023 by Marlin Equity Partners and Altor Equity Partners, claims "1.3+ billion documents ingested daily," "1M alerts delivered daily," and support for 240-plus languages, alongside a self-reported 27,000 clients and roughly 2,200 employees. Sprout Social, the only one of the four that's publicly traded (NASDAQ: SPT), claims its Listening tool "processes up to 50k posts per second and an average volume of 600 million messages a day." Determ, the smallest and most specialized of the four, leans into political and crisis-management monitoring specifically, claiming AI-generated summaries and "84x faster crisis reaction times" — a self-reported figure with no methodology published alongside it. Agorapulse, based in Paris and still privately held, added Reddit to its coverage in July 2025 and reports "31K+ social media managers" and "3,000+ agencies" as customers; a third-party estimate (Getlatka) puts its 2024 ARR at roughly $20M and its valuation near $60M, neither of which the company itself has confirmed.
Two of the acquired companies are worth a closer look on their own terms. Keyhole was Muck Rack's first-ever acquisition, in September 2024, roughly two years after Muck Rack raised a $180M Series A — one of the largest funding rounds in PR technology. Keyhole's own site and blog are now largely inaccessible behind Cloudflare's bot protection; its social-listening product lives on inside Muck Rack's own site instead. BuzzSumo, despite being acquired twice — first by Brandwatch in 2017, then again when Cision bought Brandwatch in 2021 — still operates under its own brand and its own pricing page, built around a database of "700K+ journalists" rather than X-specific monitoring; X engagement data is something it tracks in service of that journalist-and-content focus, not as a primary product.
How deep does X coverage actually go
Three of these companies have confirmed official access to X's data: Brandwatch is listed on X's own partner directory and claims "full firehose" access; Meltwater joined X's Official Partner Program in September 2021 and claims it processes roughly 500 million new posts a day from that feed; Sprout Social joined the same program in May 2023. Official partner status, though, doesn't automatically mean complete data. A third-party account of Sprout Social's product (not confirmed by Sprout Social itself) describes its X Listening as using sampled data with a backfill limited to the last 30 days or 200,000 posts — a meaningfully smaller window than "the full firehose."
Whether that gap matters depends on how much weight you put on catching a post within minutes rather than hours. Third-party analyses of X's newly open-sourced recommendation algorithm (not officially confirmed by X) report that a reply posted within 15 minutes of the original gets three to five times more visibility than one posted two hours later, and that a post's visibility score roughly halves every six hours — the numbers and their caveats are in what the reply data actually says. If those figures hold, the gap between "real-time" and "sampled, refreshed periodically" is not a cosmetic one.
What it costs to build your own X monitor now
If none of the above fits your budget, the obvious next thought is building something yourself against X's own API. That got meaningfully more expensive on February 6, 2026, when X replaced its old tiered subscriptions with pay-per-use pricing as the default for new developers — with no free tier at all.
| Action | Price per call | Relative to a tweet read |
|---|---|---|
| Read a tweet, list, or Space | $0.005 | 1× |
| Read a user profile | $0.010 | 2× |
| Post without a link | $0.015 | 3× |
| Post with a link | $0.200 | 40× |
Source: Third-party blog aggregation (twitterapi.io, xpoz.ai) of X's pay-per-use rate card, 2026. X's own developer.x.com pricing page returned an access error when we tried to fetch it directly, so this is a secondhand source, not confirmed by us against X's own page.
The same rate card caps reads at 2 million a month, limits search to the last 7 days, and drops streaming access entirely. The legacy subscription tiers still exist for accounts that had them before the change, but none accept new signups: Basic sits at $200 a month (up from its original $100), Pro at $5,000 a month, and Enterprise at $42,000 to $50,000-plus a month — the only official route left to search X's full archive back to 2006. All of this comes from third-party developer blogs rather than X's own pricing page directly, since that page returned an access error (HTTP 402) when we tried to fetch it — but multiple independent sources agree on the same numbers. X API pricing in 2026 goes through the full rate card, the legacy tiers, and what the 7-day search window rules out.
Building a monitoring tool from scratch, in other words, is now a metered cost from the first API call, not a free weekend project with a rate limit attached. That metered floor is also why we sell a run rather than a feed (disclosure: WarmList is ours): $9 buys one search, 500+ posts read and scored, and nothing running afterwards to pay for.
The platform itself keeps changing underneath all of this
Cost isn't the only thing that shifted. X open-sourced a new, Grok-based recommendation algorithm on January 20, 2026, replacing hand-tuned ranking rules with one trained directly on user behavior — a change several of the tools above wrote their own explainers about. X announced it was shutting down Communities on April 23, 2026, later extending the cutover to May 30; the company's head of product, Nikita Bier, said the feature had a good idea behind it but was used by under 0.4% of accounts and accounted for 80% of the platform's spam reports, according to TechCrunch's reporting. Separately, third-party trackers (not officially confirmed by X) report that direct-message limits now run from roughly 500 a day on a free account up to 1,500 a day on the highest paid tier, and that reply visibility itself is throttled for accounts a poster doesn't follow — the mechanism commonly called "reply deboosting." None of this is specific to monitoring tools, but it means every company in this piece is building on top of a platform that keeps moving the ground under their pricing, their reach, and their own feature roadmaps.
The smaller growth tools aren't monitoring tools either
Below the enterprise tier sits a separate category of X-focused tools — Tweet Hunter, Typefully, Hypefury, Postwise — that get lumped into "X monitoring" conversations but are built for something else: writing, scheduling, and publishing content. Tweet Hunter, founded in 2021 by Thomas Jacquesson and now owned by the French SaaS company lempire, has a Lead Finder and a CRM, and describes itself as an "official X API partner" with "no shadowban concerns," but its own blog output is almost entirely about content strategy — industry-specific how-to posts, engagement tactics, algorithm explainers — not lead discovery. Typefully, started in 2020 by Fabrizio Rinaldi and Francesco Di Lorenzo with backing from X co-founder Ev Williams and reporting roughly $1.6M in ARR as of 2024, is explicit about staying in its lane: its own comparison content describes itself as "a writing tool," not a lead-generation product. Hypefury (founded by Yannick Veys and Samy Dindane) and Postwise carry no lead-generation feature at all in what we could find — Hypefury's closest equivalent is an "Auto DM" feature that replies to anyone who comments a trigger word, which is closer to a keyword-triggered automation than a monitoring tool searching the wider platform.
- Write, schedule, and publish posts
- Track your own engagement and follower growth
- No keyword monitoring or buying-intent detection
- Monitor keywords across X and other platforms at once
- Score posts for buying intent
- Built by, and often marketed to, solo operators
The newer names on the right of that split also sell themselves in a completely different register from the nine companies in the table above. Where Brandwatch, Meltwater, and Talkwalker route you to a custom quote, a cross-platform entrant like Octolens puts the entire offer above the fold.

Source: octolens.com — captured 2026-08-20
That is not evidence of a better product — it is evidence of a different buyer. "No credit card • 2-min setup • 5k free mentions" is written for someone who will try the thing this afternoon without talking to anyone, and "in your stack, not another dashboard" is aimed squarely at the seat-based dashboards the first half of this article is about. Whether the coverage underneath holds up against a firehose partner is a separate question none of these homepages can answer. What the page does show is that the self-serve end of this market is being rebuilt around a buyer the nine incumbents never priced for.
Of everything we reviewed across both sides of that split, only Volumn.ai names indie hackers directly in its own marketing — its $40-a-month Hobby plan is described as fitting "solo creators and indie hackers." ReplyGain, a solo, self-funded product covering Reddit, Hacker News, Bluesky, and X, comes closest in practice, down to a $9 one-time "7-Day Pass" with a plain refund promise if it doesn't turn up a lead in three days. Everyone else in this list is priced and written for a marketing team, an agency, or a company with a seat budget — not a single developer deciding whether ten dollars a month is worth it.
What we sell instead of a subscription
None of the tools above are quite what WarmList does, and for the same reason each time: they're all standing services you keep running and paying for every month, whether or not anything worth replying to shows up that day. WarmList runs once, when you ask it to, and hands back the specific posts plus a written reply for that one request. If you want continuous X coverage — a dashboard, a Slack alert, a live feed you check every morning — one of the tools above is the right category of thing to buy, and the honest starting point for a solo developer's budget is Sprout Social's or Agorapulse's published entry tier rather than anything with a custom quote. For the manual version of what we do, the method is written out step by step here. If Reddit rather than X is where your buyers are, the Reddit monitoring comparison is the equivalent list for that side, and the rest of this market is compared, tool by tool, on the comparison hub.
Our price, in the same column as theirs
Every tool above is quoted per month, and ours does not fit that column, so here it is in its own. $9 for one run, paid once. You paste a product URL instead of configuring streams and filters, and the run reads the public timeline, scores 500+ posts, and returns each candidate with the post, the score, and the reason it scored — about ten minutes from payment. Nothing runs afterwards: no dashboard, no Slack alerts, no seats to add, no renewal. Set next to a $199-a-month listening suite, that is either a bargain or completely beside the point, depending entirely on whether what you wanted was a feed or a shortlist.


