Compare/Head to head
Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.
Starting price
$49/mo 7 day free trial
B2B emails and direct dials with buying-intent signals, from $49/mo with a 7-day trial.
Where Lead411 fits
Sales-quoted Free tier
Real-time contact search with some sequencing attached. Quote-based for the paid tiers.
Where Seamless.AI fits
| Detail | Lead411 | Seamless.AI |
|---|---|---|
| Starting price | $49/mo | Sales-quoted |
| Free tier | –No | ✓Yes |
| Free trial | 7 day free trial | Not on record |
| MCP server | –No | ✓Yes |
| Public API | ✓Yes | ✓Yes |
| Listed under | Email finders, Lead generation | Email finders, Lead generation, Outreach |
| Capterra | 4.7 from 78 reviews | 4.5 from 581 reviews |
Lead411
Stands out: Intent signals sitting alongside the dials, at a price that undercuts the enterprise data vendors.
Watch out: No MCP, and intent data is only as useful as the market you sell into.
Not the right fit for
Seamless.AI
Stands out: Contacts are verified as they come back rather than pulled from a stale export.
Watch out: The marketing is loud and the paid tiers are sales-led, with no published price.
Not the right fit for
Lead411
Seamless.AI
Lead411
$49/mo
Spark is $49/mo or $490/yr for 1,000 exports a month, and Ignite starts at $150/mo. A 7-day free trial is available. Confirm current terms on the vendor site.
Checked 4 Nov 2026
Seamless.AI
Sales-quoted
Sales-quoted. The vendor pricing page is an inquiry form with no published plan prices. Confirm current terms on the vendor site.
Checked 4 Nov 2026
All Lead411 alternatives All Seamless.AI alternatives Every Email finders tool
Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?