These 10 apps lead Slack Marketplace's MCP registry category as of August 2026 — ranked by user rating, review count, and audit score, refreshed every 24 hours from the canonical Slack Marketplace marketplace listing.
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Updated · methodology: audit-score · About AppRanks
This is the curated shortlist — the top-ranked mcp registry apps. To browse every mcp registry app on Slack Marketplace, see the full MCP registry category.
This list ranks the top 10 Slack Marketplace apps classified under MCP registryby the source marketplace's own taxonomy — apps appear here only because Slack Marketplace itself tags them in this category, not because of any AppRanks editorial decision. Within the category set, ranking uses a Bayesian-ish blend of average rating × natural log of review count: the formula is rating × ln(reviewCount + 1), so a high-rating-low-review app doesn't leapfrog an established listing on a single 5-star outlier. The blend favors apps that are both well-reviewed AND have an established user base.
AppRanks does not invent a proprietary score for public surfaces — the rank shown mirrors the marketplace's published category position exactly, scraped on a 12-24 hour refresh cycle from the canonical Slack Marketplace listing. The category lookup happens at request time and the page is cached at the edge for 1 hour to absorb traffic spikes; the underlying ranking data refreshes daily so the list stays accurate within one day of any source change. AppRanks does not editorially promote or demote apps based on advertiser or partnership status — the same blend formula applies uniformly across every app on this platform.
Ranks #1 in the Slack Marketplace mcp registry category as a newly-listed listing. Currently has an early-stage review volume (0 reviews). Pricing: Free and paid plans available. Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging mcp registry option — Zoom ranks #1 on Slack Marketplace and is still building review depth.
Ranks #2 in the Slack Marketplace mcp registry category as a newly-listed listing. An early-stage review volume (0 reviews) with a no-rating average. Pricing: Free and paid plans available. Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging mcp registry option — Zapier ranks #2 on Slack Marketplace and is still building review depth.
Ranks #3 in the Slack Marketplace mcp registry category as a newly-listed listing. Tracks at no-rating across 0 reviews — early-stage review volume. Pricing: Free and paid plans available. Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging mcp registry option — Notion ranks #3 on Slack Marketplace and is still building review depth.
Holds position #4 in the Slack Marketplace mcp registry category as a newly-listed listing. Currently has an early-stage review volume (0 reviews). Pricing: Paid. Refresh: daily from the source marketplace.
Currently sits at #5 in the Slack Marketplace mcp registry category as a newly-listed listing. An early-stage review volume (0 reviews) with a no-rating average. Pricing: Free and paid plans available. Refresh: daily from the source marketplace.
Holds position #6 in the Slack Marketplace mcp registry category as a newly-listed listing. Tracks at no-rating across 0 reviews — early-stage review volume. Pricing: Paid. Refresh: daily from the source marketplace.
Currently sits at #7 in the Slack Marketplace mcp registry category as a newly-listed listing. Currently has an early-stage review volume (0 reviews). Pricing: Free and paid plans available. AppRanks tracks this listing on a 24-hour cycle.
Holds position #8 in the Slack Marketplace mcp registry category as a newly-listed listing. An early-stage review volume (0 reviews) with a no-rating average. Pricing: Paid, with a free trial. AppRanks tracks this listing on a 24-hour cycle.
Currently sits at #9 in the Slack Marketplace mcp registry category as a newly-listed listing. Tracks at no-rating across 0 reviews — early-stage review volume. Pricing: Free and paid plans available. AppRanks tracks this listing on a 24-hour cycle.
Holds position #10 in the Slack Marketplace mcp registry category as a newly-listed listing. Currently has an early-stage review volume (0 reviews). Pricing: Paid. Source: Slack Marketplace's own published category position.
Same data as the ranked cards, condensed into a sortable-by-eye grid: rating × review depth × pricing tier across the top 10 mcp registry apps on Slack Marketplace.
| # | App | Rating | Reviews | Pricing |
|---|---|---|---|---|
| 1 | Zoom | — | — | Free and paid plans available |
| 2 | Zapier | — | — | Free and paid plans available |
| 3 | Notion | — | — | Free and paid plans available |
| 4 | Box | — | — | Paid |
| 5 | Lucidchart | — | — | Free and paid plans available |
| 6 | Lattice | — | — | Paid |
| 7 | Reclaim.ai | — | — | Free and paid plans available |
| 8 | Bob | — | — | Paid, with a free trial |
| 9 | Canva | — | — | Free and paid plans available |
| 10 | Atlassian Rovo | — | — | Paid |
Want to compare any two apps in detail (features, ratings trend, pricing plans side-by-side)? Open the head-to-head page from the "Compare to #N" link on each card above. Custom multi-app comparisons, historical rank trajectory, and CSV export are available on a paid plan.
Methodology details: /glossary/audit-score · /about.
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