Email validation API
Waterfall.io, contact us
Contact us
Plan: Rates are quoted against your data Waterfall.io's only plan
Call:
POST / Waterfall.io's only callAbout this item
- Live. The call checks the email when you make it.
- No public price. You ask Waterfall.io for one.
- One call. You send email, custom_fields to
POST /. The call returns whether the address takes mail.v1/ verify/ email - Who can get it: business users 18 or over, who sign after a call. Keep data: set by your agreement with Waterfall, not public. Use data: for internal sales and marketing use or, with our permission, for integration into their products.
Compare with similar plans
Other providers' plans with no public price and the closest number of sections. Like this plan, each is live.
| This planWaterfall.io, contact us | Anymail Finder, contact us | Clearout, contact us | Dropcontact, contact us | EmailVerify.io, contact us, Custom plan, POST /validate-batch | |
|---|---|---|---|---|---|
| Billing | contact | contact | contact | contact | contact |
| Freshness | live | live | live | live | live |
| Who can get it | business users 18 or over, who sign after a call | businesses only | anyone | professionals acting within their activity (a natural person with the power to commit, or a legal person) | anyone 18 or over |
Sources
From each provider's own pricing page and docs. We read this row from these pages on 2026-10-17.
- docs.waterfall.io/v1/email-verifier
- docs.waterfall.io/v1/inline-usage
- docs.waterfall.io/v1/introduction
- github.com/Waterfall-io/api-skills/blob/master/skills/waterfall-direct-api/SKILL.md
- waterfall-io-public.s3.us-east-1.amazonaws.com/api_specs.yaml
- waterfall.io/
- waterfall.io/book-a-call
- waterfall.io/pricing
- waterfall.io/privacy-policy
- waterfall.io/product/contact-enrich
- waterfall.io/terms-of-service
Product details
We list each column of this plan's row on the sheet that has a value.
| Billing | contact |
|---|
| Per | call |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Verify an email address and get deliverability status in a single synchronous call. |
|---|
| Freshness | live |
|---|---|
| Keep data | set by your agreement with Waterfall, not public |
| Use data | for internal sales and marketing use or, with our permission, for integration into their products |
| Per second | 0.83 |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | email, custom_fields |
|---|---|
| Method | POST |
| Path | /v1/verify/email |
| Plan | Rates are quoted against your data |
|---|---|
| Who can get it | business users 18 or over, who sign after a call |
The 20 fields in the plan's answer
job status, start date, stop date, input, job ID, context ID, custom fields, email, domain, email status, SMTP provider, MX record, usage total USD, usage balance remaining USD, usage persons count, usage persons USD, usage phones count, usage phones USD, usage companies count, usage companies USD