## Service directory (1-1 of 1)

| id | Provider | Product | Free tier | Lowest paid price | Checked |
|---|---|---|---|---|---|
| customer-io | Customer.io | Customer.io | Startup program: 12 months free for companies that raised under $10M | Essentials from $100/mo for 5,000 profiles | 2026-10-23 [pricing page](https://customer.io/pricing/) |

Categories: email (1), notifications (1).

**Caveats (show these word for word)**
- Directory prices summarise each provider's pricing page on the date shown (checked_at), read automatically and pending human review. Check the page before relying on a price.

Confidence: medium.

Use estimate_cost or plan_stack for providers priced by the cost engine.