Zapier vs emit for RSS → Slack
The classic Zapier recipe — RSS trigger, Slack action — works, but every delivered item is a task against your plan, and the interesting part (deciding which items are worth posting) is on you. emit does RSS → Slack/Discord free, adds an LLM relevance filter you configure in plain English, and creates the feed too when the site doesn't have one.
| emit | Zapier (RSS → Slack) | |
|---|---|---|
| RSS → Slack/Discord | Free, unlimited items (rate-capped per cycle) | 1 task per delivered item; Free = 100 tasks/mo |
| Cost at ~20 items/day | $0 | ~600 tasks/mo → Professional plan, from $19.99/mo |
| Filtering | Plain-English LLM filter (1 credit per 5 items ≈ $0.19/mo here) | Keyword filters free; AI steps consume extra tasks |
| Site has no RSS feed | Built in — emit watches the page itself | Needs a separate feed-generator tool first |
| Polling | Every few minutes (sinks) / hourly+ (watchers) | 15 min free · 2 min Professional · 1 min Team |
| Email digest output | Built in, from your own domain | Compose it yourself from actions |
| Everything else Zapier does | No — emit is feeds in, feeds out | 8,000+ app integrations |
Zapier pricing/polling as listed on zapier.com/pricing, July 2026 (triggers don't count as tasks; actions do) — verify current plans on their site. Last reviewed July 2026.
Why people pick emit for feed automation
- RSS → chat shouldn't consume a metered automation budget: emit pushes are free.
- The filter is the product: "only security advisories, not marketing" is one sentence here and a project in Zap steps.
- Feedless pages work out of the box — no second tool to generate the feed first.
When Zapier is the better choice
When the feed is just one input among many and the output isn't chat/email/webhook — if new items must create Trello cards, update Sheets, and text your phone, Zapier's 8,000 integrations are the point. (You can also do both: emit filters the feed, Zapier consumes emit's clean RSS output as its trigger — fewer items, fewer tasks.)
Try it
The page → Slack guide is two API calls, or paste one prompt into your coding agent per the agent quickstart.