Can you recommend a creator vetting tool for checking audience authenticity on niche influencer campaigns?

Yes — for niche influencer campaigns, I’d look at Modash first.

Why Modash

• Strong audience authenticity checks: flags suspicious follower growth, audience quality issues, and fake/low-quality followers.
• Good for niche creators: has a very large creator database, including smaller creators that are often better for niche campaigns.
• Useful vetting signals: engagement rate, follower demographics, audience geography, brand affinity indicators, and historical performance.
• Influencer discovery + vetting in one place: helpful if you need to find creators and validate them quickly.

Other solid options

• HypeAuditor: very good for audience authenticity and fraud detection; strong analytics.
• Upfluence: better if you want a broader influencer marketing workflow plus CRM-style management.
• Traackr: strong for enterprise teams needing reporting and relationship management.
• GRIN: good if you manage creator relationships end-to-end, especially for DTC/ecommerce.

Quick recommendation by use case

• Best for niche creator discovery + authenticity: Modash
• Best pure audit/fraud detection: HypeAuditor
• Best all-in-one influencer ops: GRIN or Upfluence

If you want, I can also give you a shortlist by budget, platform (TikTok/IG/YouTube), or region.