KWatch.io

KWatch.io is a web and API service for monitoring keywords and selected Reddit and Hacker News conversations. It is best suited to teams that need timely alerts across those communities and several social platforms. The main trade-off is focused source coverage: comments, video audio, Instagram, and TikTok are outside its reach.

Overview

KWatch.io targets sales-signal detection, customer feedback, competitor monitoring, market intelligence, customer support, and campaign measurement. Its mix of keyword alerts and tracked-thread notifications makes it useful when a team needs to spot mentions and follow activity in particular Reddit or Hacker News discussions.

The maker says monitoring refreshes per second, with notifications usually arriving within seconds and sometimes taking up to one minute during temporary congestion. That is suited to prompt follow-up, but not a guarantee of instant delivery. Included and excluded keywords and language filters help narrow alerts and reduce irrelevant matches.

Key features

Alerts, sentiment, and integrations

Alerts can be delivered by email, Slack notification, or API webhook. Each webhook result is sent as a JSON-encoded HTTP POST, so it can feed systems that accept custom POST requests. AI classifies detected keyword sentiment as positive, negative, or neutral: a useful quick signal, though the stated output is a label rather than a deeper interpretation.

The hosted MCP server works with compatible clients using a KWatch API key; named clients include Claude, Claude Code, Cursor, and VS Code. Webhook and MCP traffic is encrypted with TLS, and MCP access can be revoked by revoking its API key.

Source coverage and limits

Keyword monitoring covers Reddit, X, Hacker News, LinkedIn, Facebook, and YouTube. Reddit and Hacker News also support tracking posts or comments and receiving an alert when someone comments in the conversation. That narrower thread tracking is valuable for community monitoring, but it is not a general comment-monitoring feature across every source.

LinkedIn and Facebook comments are not monitored, and Facebook groups must be public. YouTube keyword alerts check titles and descriptions, not video audio. Instagram and TikTok are not monitored, so teams whose listening depends on those platforms should look elsewhere.

Pricing

KWatch.io has a free plan and paid plans from $19 a month. The Free plan costs nothing, billed monthly, and includes 2 Reddit keyword alerts, 2 Hacker News keyword alerts, and no tracked conversations. It is a limited way to start with keyword monitoring, but not a fit for teams that need thread follow-up or wider source coverage.

Essential costs $19 a month. It raises Reddit and Hacker News alerts to 20 each, includes 2 each for X and YouTube and 1 each for Facebook and LinkedIn, and adds 2 tracked conversations each on Reddit and Hacker News. AI analysis, filtering, and basic support are included. This is the practical entry point for someone who needs sentiment or conversation tracking without the larger quotas of higher tiers.

Business costs $79 a month, with 100 Reddit and Hacker News alerts each, 10 each for X and YouTube, 5 each for Facebook and LinkedIn, and 10 tracked conversations each on Reddit and Hacker News. API, webhooks, Slack, MCP, bulk import, team management, and basic support make it the first tier suited to team workflows and integrations.

Enterprise costs $199 a month. Its quotas rise to 500 Reddit and Hacker News alerts each, 50 each for X and YouTube, 25 each for Facebook and LinkedIn, and 50 tracked conversations each on Reddit and Hacker News. It includes the same integration and management features as Business, plus advanced support, so it is aimed at larger monitoring needs rather than a different source set.

Agency (Multi-Client) has custom pricing, multi-client management, custom keyword-alert and conversation limits, and API, webhooks, Slack, and MCP. It suits agencies managing multiple client programs, while exact quotas depend on the arrangement. Basic support is included on Free, Essential, and Business; Enterprise and Agency include advanced support.

Platforms

KWatch.io is available on web and through an API. The API and webhook options matter most to teams that want alerts in their own systems; they are not a substitute for broader source coverage.

Who it's for

Choose KWatch.io if Reddit and Hacker News matter alongside monitoring on X, LinkedIn, Facebook, or YouTube, and if alerts, sentiment labels, or specific conversation tracking support your work. It is less suitable when the job depends on Instagram or TikTok, LinkedIn or Facebook comments, or what is said in YouTube audio.

Pros and cons

• Pros: Six-source keyword monitoring and Reddit and Hacker News conversation alerts bring mention discovery and thread follow-up together.
• Pros: Email, Slack, webhooks, API, and MCP offer several ways to route results into existing workflows, with TLS encryption for webhook and MCP traffic.
• Pros: Included and excluded keywords, language filters, and positive/negative/neutral sentiment labels help teams triage results.
• Cons: The free tier has only four keyword alerts in total across Reddit and Hacker News and no tracked conversations.
• Cons: Comment coverage is limited to Reddit and Hacker News, Facebook groups must be public, and YouTube alerts omit audio.
• Cons: Instagram and TikTok are not monitored, ruling it out for teams centered on either platform.

Alternatives

For more AI-focused options, browse AI Social Listening Tools; for a broader category comparison, see Social Media Listening Software.

• dig is another freemium web and API option; choose it if its free 10 credits per month or Pro plan at $25 a month for 50 credits, influencer vetting, crisis detection, and trend discovery better match your needs.
• Social Searcher offers a free web plan with no registration or login, 100 real-time searches per day, one monitoring, and 500 saved posts per month; consider it if those search and saved-post limits suit a lightweight start.
• Brand24 is a paid alternative with a free trial and apps for Android, iOS, macOS, web, and Windows; its Individual plan is $249 a month, billed $ 199 per month annually, with 3 keywords, 2K mentions per month, 1 user, and updates every 12 hours.
• Sprinklr Social Listening is another paid alternative.
• Awshar AI is a paid web alternative.
• Harken is a free web alternative.
• Pulsar is a paid web alternative with enterprise pricing.
• Quid (formerly NetBase Quid) is a paid web alternative without a free plan.

Verdict

KWatch.io is a strong fit for teams that want keyword monitoring across six sources, particularly when Reddit and Hacker News conversations deserve dedicated follow-up. Its integrations and tiered quotas support workflows from a modest paid setup to larger teams. Look elsewhere if your coverage depends on Instagram, TikTok, comments on LinkedIn or Facebook, or YouTube audio; those gaps are central to the product's fit, not minor plan limitations.