# Encrata, free, POST /email/smtp-verify: Email verification API

> Perform a live SMTP mailbox-existence probe without delivering a message.

Encrata's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 1 of the 6 key fields we check: Deliverability.
We haven't run Encrata through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,341 plans for email verification APIs by price. Half the plans cost $1.985 per 1,000 emails or less.
[treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.
[Disify's $9 monthly plan (/email)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/encrata/free-post-email-smtp-verify
- [Email validation API: 160+ providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://encrata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://developer.encrata.com/api/email/smtp-verify`
- API key: with the plan, on https://encrata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://encrata.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Encrata (https://encrata.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Email Validity · Email Identity · Email Gender · Email Compliance · Email Breaches · Password Breaches · GitHub Leaks · Exposed API Keys · URL Scan · QR Code Scan · Barcode Scan · Image Scan · File Scan · Bulk lookup (identity) · Bulk lookup (validity)

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## Catch-all

- $ per 1,000: $0.00

## In their words

- Their pitch: Perform a live SMTP mailbox-existence probe without delivering a message.

## Data

- What it checks: disposable domains, mailbox
- Keep data: 5. Data Handling Obligations: You must [...] delete data when it is no longer needed for your stated purpose
- Use data: Acceptable Use Policy, 3. Prohibited Use: You may not use the Service to: Stalk, harass, intimidate, or threaten any individual [...] Discriminate against individuals in employment, housing, credit, or insurance decisions [...] Violate any applicable law, including privacy and data protection laws (GDPR, CCPA) [...] Make eligibility decisions covered by the Fair Credit Reporting Act (FCRA) - Encrata is not a consumer reporting agency [...] Send unsolicited bulk communications (spam) [...] Resell, sublicense, or redistribute raw lookup data without authorization [...] Circumvent rate limits, credit metering, or security controls [...] Probe, scan, or test the vulnerability of the Service without written permission [...] Use the Service to develop a competing product

## Plan

- Pay: $0
- You get: 500 credits
- Enough for: 500 calls, once
- Expires: never

## Rate limit

- Per second: 3.33
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: POST
- Path: /email/smtp-verify

## About the plan

- Plan: Free
- Who can get it: anyone

## The 4 fields the plan's answer can hold

deliverable, SMTP code, catch-all, disposable

## Encrata's plans (11)

- [Encrata, free, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/free-post-email-smtp-verify/llms.txt): $0.00 per 1,000, 17% complete
- [Encrata, $10 pack, 50K credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/10-pack-50k-credits-post-email-smtp-verify/llms.txt): $0.20 per 1,000, 17% complete
- [Encrata, $20 pack, 100K credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/20-pack-100k-credits-post-email-smtp-verify/llms.txt): $0.20 per 1,000, 17% complete
- [Encrata, $50 pack, 250K credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/50-pack-250k-credits-post-email-smtp-verify/llms.txt): $0.20 per 1,000, 17% complete
- [Encrata, $100 pack, 500K credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/100-pack-500k-credits-post-email-smtp-verify/llms.txt): $0.20 per 1,000, 17% complete
- [Encrata, $250 pack, 1.3M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/250-pack-1-3m-credits-post-email-smtp-verify/llms.txt): $0.192 per 1,000, 17% complete
- [Encrata, $500 pack, 2.65M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/500-pack-2-65m-credits-post-email-smtp-verify/llms.txt): $0.189 per 1,000, 17% complete
- [Encrata, $1,000 pack, 5.5M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/1000-pack-5-5m-credits-post-email-smtp-verify/llms.txt): $0.182 per 1,000, 17% complete
- [Encrata, $2,500 pack, 14M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/2500-pack-14m-credits-post-email-smtp-verify/llms.txt): $0.179 per 1,000, 17% complete
- [Encrata, $5,000 pack, 29M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/5000-pack-29m-credits-post-email-smtp-verify/llms.txt): $0.172 per 1,000, 17% complete
- [Encrata, $10,000 pack, 60M credits, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/10000-pack-60m-credits-post-email-smtp-verify/llms.txt): $0.167 per 1,000, 17% complete

## Encrata's calls for this API (3)

- `POST /api/jobs/bulk`: [Encrata, free, POST /api/jobs/bulk](https://datacircle.dev/validate-email-apis/encrata/free-post-api-jobs-bulk/llms.txt)
- `POST /api/lookup/email/validity`: [Encrata, free, POST /api/lookup/email/validity](https://datacircle.dev/validate-email-apis/encrata/free-post-api-lookup-email-validity/llms.txt)
- `POST /email/smtp-verify`: [Encrata, free, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/free-post-email-smtp-verify/llms.txt)

## Encrata's APIs (2)

- [Encrata: email verification API pricing, 11 plans, POST /email/smtp-verify](https://datacircle.dev/validate-email-apis/encrata/free-post-email-smtp-verify/llms.txt)
- [Encrata: reverse email lookup API pricing, 10 plans, POST /api/jobs/bulk](https://datacircle.dev/reverse-email-lookup-apis/encrata/10-pack-50k-credits-post-api-jobs-bulk/llms.txt)
- [Encrata: reverse email lookup API pricing, 10 plans, POST /api/lookup/email/identity](https://datacircle.dev/reverse-email-lookup-apis/encrata/10-pack-50k-credits-post-api-lookup-email-identity/llms.txt)

## Encrata: email verification API alternatives

- [VerifySwift, $1,499.99 monthly, Daily Credits 300,000 a day](https://datacircle.dev/validate-email-apis/verifyswift/1499-99-monthly-daily-credits-300000-a-day/llms.txt): $0.167 per 1,000, 50% complete, live
- [StopReg, $200 monthly](https://datacircle.dev/validate-email-apis/stopreg/200-monthly/llms.txt): $0.167 per 1,000, 50% complete, stored
- [UserCheck, $250 monthly, Pro 1.5M, POST /v1/gates/{gate_id}/decisions, Decision endpoint](https://datacircle.dev/validate-email-apis/usercheck/250-monthly-pro-1-5m-post-v1-gates-gate-id-decisions-decision-endpoint/llms.txt): $0.167 per 1,000, 50% complete, stored
- [VeriMails, $3,000 yearly, Agency, POST /api/verify/single](https://datacircle.dev/validate-email-apis/verimails/3000-yearly-agency-post-api-verify-single/llms.txt): $0.167 per 1,000, 67% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://docs.encrata.com/credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.encrata.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.encrata.com/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://encrata.com/legal/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://encrata.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://encrata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://encrata.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing