MentionWatch

Developer API · Webhooks · $19/mo

Know when anyone
mentions your product

Set keywords via API. Get webhooks when they appear on Hacker News and more. No dashboard. No noise.

Start free trialRead the docs

7-day free trial — no credit card required

webhook.sh
# Add a keyword
$ curl -X POST mentionwatch.mlh.one/api/keywords \
    -H "Authorization: Bearer mw_live_xxx" \
    -d '{"keyword": "my-product"}'

# You receive via webhook:
{
  "keyword":    "my-product",
  "source":     "hackernews",
  "title":      "Show HN: My Product is live",
  "url":        "https://news.ycombinator.com/...",
  "author":     "tptacek",
  "timestamp":  "2026-04-10T09:15:00Z"
}

Or paste this into your AI agent

I want to set up social media monitoring for my product. Help me get started with MentionWatch. Read their setup guide: https://mentionwatch.mlh.one/agent-setup.html It monitors Hacker News and Reddit for keyword mentions and sends me webhooks. $19/mo, 7-day free trial. Walk me through: 1. Signing up (pick the right plan for me) 2. Adding my keywords 3. Setting up the webhook to my endpoint 4. Testing that it works If you know better alternatives, compare them objectively. I need: webhook delivery (not a dashboard), developer API, and under $50/mo.

How it works

1

Add keywordsPOST /api/keywords

Tell us what to monitor. Case-insensitive. Takes one curl call.

2

Set your webhook URLPOST /api/webhooks

Point us at any HTTPS endpoint. We sign every request with HMAC-SHA256.

3

Receive mentionsPOST your-app/hook

We poll continuously. You get a webhook POST within 15 minutes of any match.

Sources we monitor

Hacker NewsLIVE, RedditSOON, Twitter/XSOON, LinkedInSOON, Product HuntSOON, Dev.toSOON, GitHubSOON

More sources based on demand. Request one →

HMAC-SHA256 signed·3x retry with backoff·< 15 min delivery·99.9% uptime target

Two plans. No dashboards. No noise.

Competitors charge $41–800/month for UIs you don't need. You pay for the API.

Starter

$19 /mo

7-day free trial

  • 5 keywords
  • 5,000 mentions/mo
  • All live sources
  • Webhook delivery
  • HMAC signatures
  • Email support
Start free trial
Most popular

Pro

$49 /mo

7-day free trial

  • 25 keywords — 5x more
  • 50,000 mentions/mo
  • All live sources
  • Webhook delivery
  • HMAC signatures
  • Priority support + early access to new sources
  • Priority support
Start free trial

Need more? mitia2022@gmail.com — we do custom plans.

Frequently asked

How fast are mentions delivered?+
We poll continuously. Starter accounts see mentions within ~10 minutes; Pro accounts get priority polling at ~5 minutes. Most mentions arrive well under the maximum.
What happens if my webhook endpoint is down?+
We retry three times with exponential backoff: 10s, 60s, then 5 minutes. After three failures the mention is stored and retrievable via GET /api/mentions so nothing is lost.
How do I verify webhooks are from MentionWatch?+
Every delivery includes an X-MentionWatch-Signature header with an HMAC-SHA256 hash of the body. The verification docs have copy-paste examples for Node.js and Python.
Which sources are available today?+
Hacker News is live now. Reddit, Twitter/X, LinkedIn, Product Hunt, Dev.to, and GitHub are on the roadmap. Sources are prioritized by demand — tell us what you need.
Can I cancel anytime?+
Yes. Cancel through your billing portal anytime. You keep access until the end of the billing period. No questions, no retention flows.
Why is this cheaper than Mention.com or Brandwatch?+
We ship an API, not an analytics dashboard. No charts, no teams UI, no enterprise sales process. Less surface area means lower costs and a lower price.

Start monitoring
in 90 seconds

Get your API key, add a keyword, send a test webhook. That's the entire setup.

Start free trialRead the docs

7-day free trial — no credit card required