Clay vs Seamless.AI
Which Prospecting AI tool is better in 2026?
Clay
AI-powered sales prospecting and data enrichment.
Seamless.AI
AI-powered sales leads and B2B contact data in real time
Side-by-side
Clay leads on both fronts — more capital raised ($146M) and a lower entry price than Seamless.AI.
| Metric | Clay | Seamless.AI |
|---|---|---|
| Taglinei | AI-powered sales prospecting and data enrichment. | AI-powered sales leads and B2B contact data in real time |
| Foundedi | 2017 | 2015🏆 |
| HQi | New York, US | Columbus, United States |
| Employeesi | 51-200🏆 | 400 |
| Neuron scorei | 54 | 64🏆 |
| Total fundingi | $146M🏆 | Undisclosed |
| Latest roundi | Series C · Aug 2025 | — |
| Valuationi | $3.1B🏆 | — |
| Cheapest paid plani | Launch · $185/mo🏆 | Pricing not disclosed |
| Free plani | ✓ Free | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Growth · $495/mo | Pricing not disclosed |
| Pricing summaryi | 4 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Clay and Seamless.AI.
| Capability | Clay | Seamless.AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✓ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Clay
- Has raised more capital ($146M vs Undisclosed)
- Lower starting price ($149/mo)
- Newer company (2017)
🔵 Strengths of Seamless.AI
- Higher Neuron score (64 vs 54)
- Offers a free trial
- More mature (2015)
Which should you choose?
Choose Clay if price matters most — it starts at Free · From $149/mo, which is friendlier for teams watching burn. Both AI Prospecting tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Clay if you want the most established option — it has raised $146M, 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
Clay vs Seamless.AI — which is better?
It depends on your priority. Clay has raised more capital and is the more established option; Seamless.AI has broader feature depth. See the side-by-side table above.
Is Clay cheaper than Seamless.AI?
Yes — Clay's cheapest paid plan is Launch · $185/mo, while Seamless.AI's is Free.
Do Clay and Seamless.AI offer free plans?
Clay: Yes, has a free plan. Seamless.AI: Yes, has a free plan.
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