Kalshi vs Mercury
Which Finance AI tool is better in 2026?
Kalshi
The first US-regulated prediction market exchange
Mercury
Radically different online business banking for startups, small businesses, and scaling companies.
Side-by-side
Kalshi is the more established option (raised $2.5B), but Mercury is cheaper to start.
| Metric | Kalshi | Mercury |
|---|---|---|
| Taglinei | The first US-regulated prediction market exchange | Radically different online business banking for startups, small businesses, and scaling companies. |
| Foundedi | 2018 | 2017🏆 |
| HQi | New York, US | US |
| Employeesi | 201-500 | 201-500🏆 |
| Neuron scorei | 65🏆 | 57 |
| Total fundingi | $2.5B🏆 | $700M |
| Latest roundi | Series F · May 2026 | Series D · May 2026 |
| Valuationi | $22B🏆 | $5.2B |
| Cheapest paid plani | Pricing not disclosed | —🏆 |
| Free plani | ✓ | ✓ Free Banking |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | — |
| Pricing summaryi | Free | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Kalshi and Mercury.
| Capability | Kalshi | Mercury |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Kalshi
- Has raised more capital ($2.5B vs $700M)
- Higher Neuron score (65 vs 57)
- Offers a free trial
- Newer company (2018)
🔵 Strengths of Mercury
- More mature (2017)
Which should you choose?
Choose Mercury if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Finance tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Kalshi if you want the most established option — it has raised $2.5B, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Kalshi vs Mercury — which is better?
It depends on your priority. Kalshi has raised more capital and is the more established option; Mercury is cheaper to start. See the side-by-side table above.
Is Kalshi cheaper than Mercury?
No — Mercury's cheapest paid plan is Free, while Kalshi's is Free.
Do Kalshi and Mercury offer free plans?
Kalshi: Yes, has a free plan. Mercury: Yes, has a free plan.
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