# Ambolt, free: Email verification API

> Fast email address check without sending anything: syntax, domain MX records, disposable/temporary-mail domain (9,000+ listed), role address (info@, admin@) and likely typo of a popular provider. Does not confirm that a mailbox exists.

Ambolt's Free call a day plan for the email verification API costs $0.00 per 1,000 emails. Ambolt's docs list 1 of the 6 fields on our checklist: Deliverability.
You get up to 30 calls a month.
We haven't run Ambolt through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 4,098 plans for email verification APIs by price. Half the plans cost $1.995 or less per 1,000 emails. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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. [StableEnrich's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/stableenrich/pay-as-you-go-pay-per-request-with-x402-or-mpp-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.05.
[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.
[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt), [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) and [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/ambolt/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.ambolt.dev/v1/disposable-email-check`
- API key: not needed
- Its API docs: https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1v1~1disposable-email-check
- Sold by: Ambolt (https://ambolt.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Fast email address check without sending anything: syntax, domain MX records, disposable/temporary-mail domain (9,000+ listed), role address (info@, admin@) and likely typo of a popular provider. Does not confirm that a mailbox exists.

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no limit
- Use data: Do not use the services to attack or overload systems, to evade sanctions, or in breach of law. [...] Each developer-tool response names its source and licence. Where a source requires attribution, you must keep it when you reuse the data.

## Plan

- Pay: $0
- Enough for: 30 calls a month

## Rate limit

- Per day: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email. Optional: free
- Method: GET
- Path: /v1/disposable-email-check

## About the plan

- Plan: Free call a day
- Who can get it: anyone, with no account or API key: one free call per tool and IP address per day

## The 5 fields the plan's answer can hold

syntax valid, MX records, disposable, role address, likely typo

## Ambolt's plans (2)

- [Ambolt, free](https://datacircle.dev/validate-email-apis/ambolt/free/llms.txt): $0.00 per 1,000, 17% complete
- [Ambolt, pay as you go](https://datacircle.dev/validate-email-apis/ambolt/pay-as-you-go/llms.txt): $3.00 per 1,000, 17% complete

## Ambolt's calls for this API (1)

- `GET /v1/disposable-email-check`: [Ambolt, free](https://datacircle.dev/validate-email-apis/ambolt/free/llms.txt)

## Ambolt's APIs (6)

- [Ambolt: tech stack API pricing, 2 plans](https://datacircle.dev/company-technology-apis/ambolt/free/llms.txt)
- [Ambolt: domain WHOIS API pricing, 2 plans](https://datacircle.dev/domain-whois-apis/ambolt/free/llms.txt)
- [Ambolt: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/ambolt/free/llms.txt)
- [Ambolt: web scraping API pricing, 2 plans](https://datacircle.dev/web-scraping-apis/ambolt/free/llms.txt)
- [Ambolt: company enrichment API pricing, 2 plans, GET /v1/brazil-cnpj-lookup](https://datacircle.dev/company-enrichment-apis/ambolt/free-call-a-day-get-v1-brazil-cnpj-lookup/llms.txt)
- [Ambolt: company enrichment API pricing, 2 plans, GET /v1/eu-vat-validate](https://datacircle.dev/company-enrichment-apis/ambolt/free-call-a-day-get-v1-eu-vat-validate/llms.txt)
- [Ambolt: business verification API pricing, 2 plans, GET /v1/entity-resolve](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-entity-resolve/llms.txt)
- [Ambolt: business verification API pricing, 2 plans, GET /v1/lei-lookup](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-lei-lookup/llms.txt)
- [Ambolt: business verification API pricing, 2 plans, GET /v1/nordic-company-lookup](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-nordic-company-lookup/llms.txt)
- [Ambolt: business verification API pricing, 2 plans, GET /v1/us-business-entities](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-us-business-entities/llms.txt)

## Ambolt: email verification API alternatives

- [Prime Verifier, $15 pack, Pay-As-You-Go 5,000 credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/prime-verifier/15-pack-pay-as-you-go-5000-credits-post-v1-verify-single/llms.txt): $3.00 per 1,000, 50% complete
- [DeBounce, top-up from $15, 5K credits, GET /v1/, Single email validation](https://datacircle.dev/validate-email-apis/debounce/top-up-from-15-5k-credits-get-v1/llms.txt): $3.00 per 1,000, 50% complete, live
- [OrbiSearch, $30 pack, Starter, POST /v1/bulk](https://datacircle.dev/validate-email-apis/orbisearch/30-pack-starter-post-v1-bulk/llms.txt): $3.00 per 1,000, 50% complete, live
- [ExactVerify, $15 pack, Pay-As-You-Go from 5,000 emails, GET /v1/single](https://datacircle.dev/validate-email-apis/exactverify/15-pack-pay-as-you-go-from-5000-emails-get-v1-single/llms.txt): $3.00 per 1,000, 33% complete, live
- [Resolve402, pay as you go](https://datacircle.dev/validate-email-apis/resolve402/pay-as-you-go/llms.txt): $3.00 per 1,000, 67% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://ambolt.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ambolt.dev/licences?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ambolt.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ambolt.dev/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ambolt.dev/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.ambolt.dev/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.ambolt.dev/catalog.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing