Firstbase vs Kalshi
Which Finance AI tool is better in 2026?
Firstbase
Incorporation, compliance, and bookkeeping for global founders
Kalshi
The first US-regulated prediction market exchange
Side-by-side
Kalshi is the more established option (raised $2.5B), but Firstbase is cheaper to start.
| Metric | Firstbase | Kalshi |
|---|---|---|
| Taglinei | Incorporation, compliance, and bookkeeping for global founders | The first US-regulated prediction market exchange |
| Foundedi | 2019 | 2018🏆 |
| HQi | New York City, United States | New York, US |
| Employeesi | — | 201-500🏆 |
| Neuron scorei | 72 | 82🏆 |
| Total fundingi | $65M | $2.5B🏆 |
| Latest roundi | Series B · Mar 2022 | Series F · May 2026 |
| Valuationi | — | $22B🏆 |
| Cheapest paid plani | From $399/mo🏆 | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Subscription + one-time · From $399/mo | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Firstbase and Kalshi.
| Capability | Firstbase | Kalshi |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Firstbase
- Lower starting price ($399/mo)
- Newer company (2019)
🔵 Strengths of Kalshi
- Has raised more capital ($2.5B vs $65M)
- Higher Neuron score (82 vs 72)
- Offers a free plan
- Offers a free trial
Which should you choose?
Choose Firstbase if price matters most — it starts at Subscription + one-time · From $399/mo, 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
Firstbase vs Kalshi — which is better?
It depends on your priority. Firstbase is the leaner option; Kalshi has broader feature depth. See the side-by-side table above.
Is Firstbase cheaper than Kalshi?
Yes — Firstbase's cheapest paid plan is Subscription + one-time · From $399/mo, while Kalshi's is Free.
Do Firstbase and Kalshi offer free plans?
Firstbase: Paid only. Kalshi: Yes, has a free plan.
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