# MSG91, free: Email verification API

> Email Validation helps you verify recipient addresses before sending emails — filtering out invalid, risky, or undeliverable contacts.

MSG91's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 2 of the 6 key fields we check: Address, Deliverability.
We haven't run MSG91 through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,753 plans for email verification APIs by price. Half the plans cost $1.98 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/msg91/free
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://msg91.com/us/pricing/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://control.msg91.com/api/v5/email/validate`
- API key: with the plan, on https://msg91.com/us/pricing/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://docs.msg91.com/email/email-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: MSG91 (https://msg91.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-03

## In the answer

- Completeness: 33%
- Address: ✓
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Send Email

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Email Validation helps you verify recipient addresses before sending emails — filtering out invalid, risky, or undeliverable contacts.

## Data

- What it checks: disposable domains, role addresses
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 50 requests a month
- Enough for: 50 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: POST
- Path: /api/v5/email/validate

## About the plan

- Plan: Free
- Who can get it: anyone

## The 22 fields the plan's answer can hold

request status, validation ID, user ID, count, bulk, route, email address, created at, updated at, charged, valid, result, reason, disposable, free, role, total, deliverable, undeliverable, risky, unknown, has error

## MSG91's plans (13)

- [MSG91, free](https://datacircle.dev/validate-email-apis/msg91/free/llms.txt): $0.00 per 1,000, 33% complete
- [MSG91, $27 monthly](https://datacircle.dev/validate-email-apis/msg91/27-monthly/llms.txt): $54.00 per 1,000, 33% complete
- [MSG91, $62 monthly](https://datacircle.dev/validate-email-apis/msg91/62-monthly/llms.txt): $12.40 per 1,000, 33% complete
- [MSG91, $100 monthly](https://datacircle.dev/validate-email-apis/msg91/100-monthly/llms.txt): $12.50 per 1,000, 33% complete
- [MSG91, ₹2,000 monthly](https://datacircle.dev/validate-email-apis/msg91/2000-monthly/llms.txt): $42.12 per 1,000, 33% complete
- [MSG91, ₹4,600 monthly](https://datacircle.dev/validate-email-apis/msg91/4600-monthly/llms.txt): $9.688 per 1,000, 33% complete
- [MSG91, ₹7,500 monthly](https://datacircle.dev/validate-email-apis/msg91/7500-monthly/llms.txt): $9.872 per 1,000, 33% complete
- [MSG91, $270 yearly](https://datacircle.dev/validate-email-apis/msg91/270-yearly/llms.txt): $45.00 per 1,000, 33% complete
- [MSG91, $620 yearly](https://datacircle.dev/validate-email-apis/msg91/620-yearly/llms.txt): $10.333 per 1,000, 33% complete
- [MSG91, $1,000 yearly](https://datacircle.dev/validate-email-apis/msg91/1000-yearly/llms.txt): $10.417 per 1,000, 33% complete
- [MSG91, ₹20,000 yearly](https://datacircle.dev/validate-email-apis/msg91/20000-yearly/llms.txt): $35.10 per 1,000, 33% complete
- [MSG91, ₹46,000 yearly](https://datacircle.dev/validate-email-apis/msg91/46000-yearly/llms.txt): $8.073 per 1,000, 33% complete
- [MSG91, ₹75,000 yearly](https://datacircle.dev/validate-email-apis/msg91/75000-yearly/llms.txt): $8.227 per 1,000, 33% complete

## MSG91's calls (1)

- `POST /api/v5/email/validate`: [MSG91, free](https://datacircle.dev/validate-email-apis/msg91/free/llms.txt)

## MSG91's APIs (1)

- [MSG91: email verification API pricing, 13 plans](https://datacircle.dev/validate-email-apis/msg91/free/llms.txt)

## MSG91: email verification API alternatives

- [Easy Email Verification, $20 pack, Pay-as-you-go, 2,500 emails, POST /verify](https://datacircle.dev/validate-email-apis/easy-email-verification/20-pack-pay-as-you-go-2500-emails-post-verify/llms.txt): $8.00 per 1,000, 50% complete, live
- [Sparkle, $290 yearly, Starter, POST /email-verifier/single/catchall](https://datacircle.dev/validate-email-apis/sparkle/290-yearly-starter-post-email-verifier-single-catchall/llms.txt): $8.056 per 1,000, 33% complete, live
- [Tomba, $1,620 monthly, Scale 200k, GET /email-verifier, Email Verifier](https://datacircle.dev/validate-email-apis/tomba/1620-monthly/llms.txt): $8.10 per 1,000, 50% complete, live
- [lemlist, $609 quarterly](https://datacircle.dev/validate-email-apis/lemlist/609-quarterly/llms.txt): $8.12 per 1,000, 33% 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 2026-11-03.

- https://docs.msg91.com/email/email-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.msg91.com/email/email-validation.openapi.yml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://msg91.com/help/all-about-the-429-rate-limit-error?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://msg91.com/help/transactional-email/how-to-validate-your-recipient-email-address?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://msg91.com/in/pricing/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://msg91.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://msg91.com/us/pricing/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing