Mercury vs Brex

A detailed comparison to help you choose between Mercury and Brex.

Mercury

Mercury

Banking for startups with AI insights

Brex

Brex

AI corporate cards and spend management

Rating4.2 (152 reviews)4.9 (75 reviews)
Pricing Modelfreefreemium
Starting PriceFreeFree tier available
Best ForUS tech startups wanting smart banking with built-in AI financial insights and treasuryVC-backed startups needing high-limit corporate cards with AI spend management
Free Tier
API Access
Team Features
Open Source
Tags
free tierapi access
free tierteam features
Visit Mercury →Visit Brex →

Mercury

Pros

  • + Free banking for startups
  • + AI spending insights
  • + Treasury and investing built-in

Cons

  • - US only
  • - Not for established enterprises
View full Mercuryreview →

Brex

Pros

  • + Startup-friendly underwriting
  • + AI expense management
  • + High credit limits

Cons

  • - US startups primarily
  • - Competitor to Ramp
View full Brexreview →

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Mercury vs Brex — Comparison 2026 | ToolSpotter