OpenLookup pricing: email verification API
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33% complete: 2 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsIn our email verification API benchmark, the best plan from OpenLookup scores 0.0 out of 100. OpenLookup ranks 165th of 181 providers.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 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 (/
Plan: Free one of OpenLookup's 4 plans
- FreeFree$0.00 per 1,000
- $9 monthly, StarterStarter$1.80 per 1,000
- $49 monthly, ProPro$0.98 per 1,000
- Contact us, BusinessBusiness
Call:
POST / one of OpenLookup's 2 calls for this APIAPI: Email verification API one of OpenLookup's 2 APIs
About this item
- Stored. OpenLookup may answer from OpenLookup's stored data instead of asking the mail server. OpenLookup doesn't say how old the data is.
- 2 of the 6 key fields we check. Address, Deliverability.
- Nothing to pay. You get 100 requests a month. Calls stop once your requests run out.
- One call. You send
emailtoPOST /. The call returns whether the address takes mail.v1/ email/ check - Anyone can get it. Keep data: no limit. Use data: with conditions.
OpenLookup: email verification API alternatives
OpenLookup alternatives: every email verification API provider ranked
The table starts with OpenLookup's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to OpenLookup's. Each plan in the table gives stored data.
| OpenLookup, $49 monthly, Pro, POST /v1/email/check | KaijuVerifier, $49 monthly, Growth, POST /api/v1/jobs, Submit an async bulk job | Elastic Email, $49 monthly, Email API Pro (50,000 emails/month), POST /verifications/files | IsItDisposable, $49 monthly, Growth, POST /v1/check | NexMailPro, $49 pack, Volume Top-Up, POST /verify/email | |
|---|---|---|---|---|---|
| $ per 1,000 emails | $0.98 | $0.98 | $0.98 | $0.98 | $0.98 |
| Completeness | 33% | 50% | 50% | 50% | 50% |
| Billing | monthly | monthly | monthly | monthly | pay first |
| Pay | $49 | $49 | $49 | $49 | $49 |
| Enough for | 50,000 calls a month | 50,000 results a month | 50,000 results a month | 50,000 calls a month | 50,000 calls |
| Freshness | stored | stored | stored | stored | stored |
| Who can get it | anyone | anyone | anyone at least the age of majority in their jurisdiction, with a registered account | anyone signing up with a valid, non-disposable, deliverable email address | anyone |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Address
- Deliverability
- Confidence, not in the answer
- Name, not in the answer
- Place, not in the answer
- Company, not in the answer
| $ per 1,000 emails | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | from the same budget: Phone Check · IP Check · Domain Check · IBAN Check · BIC Check · VAT Check · LEI Check · Card BIN Check · ISIN Check · Routing Number Check · Crypto Address Check · ASN Check · Security Headers Check · DNSSEC Check · CAA Check · TLS Check · Typosquat Check · Website Status Check · IPv6 Readiness Check · URL Safety Check · Batch check |
|---|
| Units cap | hard |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Email syntax, domain/MX, disposable, role, and free-provider signals. |
|---|
| Freshness | stored |
|---|---|
| What it checks | format, mail servers, disposable domains, role addresses |
| Keep data | no limit |
| Use data | You may not use OpenLookup to facilitate spam or robocalling, to launder or clean contact lists obtained without the consent of the people on them, or for any unlawful purpose. [...] The following uses are prohibited: Cleaning or validating email or phone number lists that were purchased, scraped, or otherwise obtained without the consent of the people on them, Preparing, testing, or supporting unsolicited bulk email (spam) or unsolicited robocall/ text campaigns, Attempting to enumerate, harvest, or reverse-engineer valid email addresses or phone numbers using the API's signals, Scanning or probing IP ranges or domains you do not own or operate for purposes beyond the risk-assessment use case the API is provided for, Reselling or rebranding API access without a written agreement with us, Any use that violates applicable law, including data protection law in your or your users' jurisdiction, Attempting to circumvent rate limits, credit limits, or authentication controls |
| Pay | $0 |
|---|---|
| You get | 100 requests a month |
| Enough for | 100 calls a month |
| Per second | 0.17 |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | |
|---|---|
| Method | POST |
| Path | /v1/email/check |
| Plan | Free |
|---|---|
| Who can get it | anyone |
The 13 fields the plan's answer can hold
email address, risk score, classification, recommendation, syntax valid, domain exists, MX found, disposable, role account, free provider, degraded, response time, credits remaining