# BillionVerify, $20 pack, Starter, POST /verify/disposable: Email verification API

> Check whether an email address belongs to a known disposable (temporary) email provider. This endpoint is free — it performs an in-memory domain lookup and does not consume any credits.

BillionVerify's email verification API on its Starter plan. It returns 3 of the 6 key fields we check: Address, Deliverability, Company.
You pay $20 for 20,000 credits, which pay for BillionVerify's other calls. This call costs none of them for up to 259,200,000 calls a month.
We rank 2,467 plans by price. [treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $26.95 per 1,000 emails when no provider answers.
[Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/149-monthly/llms.txt), [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) and [treg](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) are the best email verification API providers in our benchmark.

- This page: https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-disposable
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://billionverify.com/pricing
- Request: `POST https://api.billionverify.com/v1/verify/disposable`
- API key: with the plan, on https://billionverify.com/pricing
- Its API docs: https://billionverify.com/docs/api-reference#disposable-email-check
- Sold by: BillionVerify (https://billionverify.com)
- Checked: 2026-10-26

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Company: ✓

## Price

- $ per 1,000 emails: no limit
- Per: call
- Billing: pay first

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Check whether an email address belongs to a known disposable (temporary) email provider. This endpoint is free — it performs an in-memory domain lookup and does not consume any credits.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: You may not use the Service to: Violate anti-spam, privacy, consumer protection, or data protection laws. Submit data you do not have the lawful right to process. Abuse promotional offers, bypass rate limits, probe our systems, or attempt unauthorized access. Reverse engineer, copy, resell, sublicense, or build a competing service using the Service except as expressly permitted by us in writing. [...] Subject to these Terms, we grant you a limited, revocable, non-exclusive, non-transferable right to use the Service for your internal business purposes.

## Plan

- Pay: $20
- You get: 20,000 credits
- Enough for: 259,200,000 calls a month
- Expires: never

## Rate limit

- Per second: 100
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Starter
- Who can get it: anyone at least 18 years old and legally able to enter into a contract, for their internal business purposes only

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

email, domain, disposable, checked at

## BillionVerify's plans (18)

- [BillionVerify, $20 pack, Starter, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $45 pack, Popular, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/45-pack-popular-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $80 pack, Professional, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/80-pack-professional-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $150 pack, Business, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/150-pack-business-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $200 pack, Enterprise, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/200-pack-enterprise-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $350 pack, Ultimate, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/350-pack-ultimate-post-verify-disposable/llms.txt): no limit, 50% complete, stored
- [BillionVerify, $16 monthly, Starter, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/16-monthly-starter-post-verify-disposable/llms.txt): $0.000062 per 1,000, 50% complete, stored
- [BillionVerify, $36 monthly, Popular, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/36-monthly-popular-post-verify-disposable/llms.txt): $0.00014 per 1,000, 50% complete, stored
- [BillionVerify, $64 monthly, Professional, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/64-monthly-professional-post-verify-disposable/llms.txt): $0.00025 per 1,000, 50% complete, stored
- [BillionVerify, $120 monthly, Business, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/120-monthly-business-post-verify-disposable/llms.txt): $0.00046 per 1,000, 50% complete, stored
- [BillionVerify, $160 monthly, Enterprise, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/160-monthly-enterprise-post-verify-disposable/llms.txt): $0.00062 per 1,000, 50% complete, stored
- [BillionVerify, $280 monthly, Ultimate, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/280-monthly-ultimate-post-verify-disposable/llms.txt): $0.0011 per 1,000, 50% complete, stored
- [BillionVerify, $96 yearly, Starter, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/96-yearly-starter-post-verify-disposable/llms.txt): $0.000031 per 1,000, 50% complete, stored
- [BillionVerify, $216 yearly, Popular, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/216-yearly-popular-post-verify-disposable/llms.txt): $0.000069 per 1,000, 50% complete, stored
- [BillionVerify, $384 yearly, Professional, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/384-yearly-professional-post-verify-disposable/llms.txt): $0.00012 per 1,000, 50% complete, stored
- [BillionVerify, $720 yearly, Business, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/720-yearly-business-post-verify-disposable/llms.txt): $0.00023 per 1,000, 50% complete, stored
- [BillionVerify, $960 yearly, Enterprise, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/960-yearly-enterprise-post-verify-disposable/llms.txt): $0.00031 per 1,000, 50% complete, stored
- [BillionVerify, $1,680 yearly, Ultimate, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/1680-yearly-ultimate-post-verify-disposable/llms.txt): $0.00054 per 1,000, 50% complete, stored

## BillionVerify's calls (4)

- `POST /verify/bulk`: [BillionVerify, $20 pack, Starter, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-bulk/llms.txt)
- `POST /verify/disposable`: [BillionVerify, $20 pack, Starter, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-disposable/llms.txt)
- `POST /verify/file`: [BillionVerify, $20 pack, Starter, POST /verify/file](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-file/llms.txt)
- `POST /verify/single`: [BillionVerify, $20 pack, Starter, POST /verify/single](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-single/llms.txt)

## BillionVerify's APIs (1)

- [BillionVerify: email verification API pricing, 18 plans, POST /verify/disposable](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-disposable/llms.txt)

## BillionVerify: email verification API alternatives

- [RouterGrowth, top-up from $10](https://datacircle.dev/validate-email-apis/routergrowth/top-up-from-10/llms.txt): 50% complete
- [Sixtyfour, top-up from $50](https://datacircle.dev/validate-email-apis/sixtyfour/top-up-from-50/llms.txt): 50% complete, live
- [Strale, top-up from €10, Prepaid wallet, POST /v1/do, Email Validation](https://datacircle.dev/validate-email-apis/strale/top-up-from-10-prepaid-wallet-post-v1-do-email-validation/llms.txt): 50% complete, stored
- [EnvoAPI, $29 pack, Starter top-up, GET /v1/emails/disposable](https://datacircle.dev/validate-email-apis/envoapi/29-pack-starter-top-up-get-v1-emails-disposable/llms.txt): 33% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-26.

- https://api.billionverify.com/openapi.yaml
- https://billionverify.com/docs/api-reference.md
- https://billionverify.com/email-verification-api.md
- https://billionverify.com/help.md
- https://billionverify.com/help/disposable-emails-are-free.md
- https://billionverify.com/help/do-credits-expire.md
- https://billionverify.com/help/no-charge-for-recheck-within-24h.md
- https://billionverify.com/help/what-does-catch-all-mean.md
- https://billionverify.com/help/which-results-are-charged.md
- https://billionverify.com/llms-full.txt
- https://billionverify.com/llms.txt
- https://billionverify.com/pricing
- https://billionverify.com/pricing.md
- https://billionverify.com/terms