Openapi.com pricing and alternatives: email verification API, POST /email-advanced/{email}

Openapi.com's site llms.txt Best email verification API in 2026

67% complete: 4 of the 6 key fields we checkSee the 6 fields

$55.14per 1,000 emails€49.00 per 1,000 is $55.14, at the European Central Bank's $1.1253 for €1.Half of the 1,712 plans we rank by price cost $2.632 per 1,000 or less. This plan costs less than 4% of the 1,712 plans.The cheapest plan we rank by price is treg, top-up from $10, at $0.00 per 1,000.

Plan: Single request one of Openapi.com's 16 plans

Call: POST /email-advanced/{email} one of Openapi.com's 2 calls

API: Email verification API one of Openapi.com's 2 APIs

About this item

Freshness. We don't know how fresh this plan's data is.
4 of the 6 key fields we check. Address, Deliverability, Confidence, Name.
A balance you top up. You pay any amount. You spend all of it on calls.
One call. You send email to POST /email-advanced/{email}. You can also send callback. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done.
Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

Openapi.com: email verification API alternatives

We list other providers' plans closest to this plan in price per 1,000 emails.

	This planOpenapi.com, top-up, Single request, POST /email-advanced/{email}	DeBounce, top-up from $25, 10K credits, GET /v1/, Single email validation, full	TrekMail, $96 yearly, Pro, POST /verify, Verify one address (deep)	Dropcontact, €288 yearly	Tomba, $3,648 pack, Scale 400k, GET /email-verifier, Email Verifier, full
$ per 1,000	$55.14	$52.50	$53.333	$54.014	$54.72
Completeness	67%	50%	50%	33%	50%
Billing	pay first	pay first	yearly	yearly	pay first
Pay	any amount	$25	$96	€288	$3,648
Enough for	as many as you pay for	about 476 calls	150 calls a month	500 results a month	about 66,666 calls
Freshness	unknown	live	live	live	live
Who can get it	anyone acting in the course of their business, entrepreneurial or professional activity	anyone over 18	anyone at least 18 years of age (or the age of majority in their jurisdiction) and not barred from receiving services under sanctions laws	professionals acting within their activity (a natural person with the power to commit, or a legal person)	anyone 18 or over

Every email verification API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-25.

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

Address
Deliverability
Confidence
Name
Place, not in the answer
Company, not in the answer

Price
$ per 1,000	$55.14
Billing	pay first

Aggregators
Aggregators	none

Charges
Per	call
Also pays for	from the same budget: API Services

In their words
Their pitch	Verify the validity and characteristics of an email address, with more detailed data than the Start service, such as deliverability rate and unsubscription frequency, in just a few seconds and on a global level.

Data
Keep data	no limit
Use data	The data and information provided by Openapi are for the exclusive use of the Customer, who is prohibited from copying, reproducing, assigning to third parties on any grounds and/or using them for purposes other than those expressly established in the Agreement, unless expressly authorised by Openapi and subject to the Customer undertaking to comply with the instructions provided. In particular, to obtain such authorisation, the Customer must provide Openapi with assurances: (i) that it has informed its customers that the data they provide will be transmitted to third parties for the provision of the requested service, (ii) that it has adopted an adequate privacy policy and processes its customers’ data according to security and confidentiality standards no lower than those offered by Openapi’s Privacy Policy, (iii) that it adopts all measures required by applicable law or otherwise suitable to preserve the confidentiality and security of the data provided by its customers. [...] The Customer is also prohibited from: [...] (v) using the APIs and/or the Services for purposes or in a manner that causes damage to Openapi, the Suppliers or third parties and/or violates any provision of law [...]

Plan
Expires	12 months after the last top-up

Rate limit
Per second	20
Batch	1

Speed
Answer	in the call or by polling

The call
You send	email. Optional: callback
Method	POST
Path	/email-advanced/{email}

About the plan
Plan	Single request
Who can get it	anyone acting in the course of their business, entrepreneurial or professional activity

The 37 fields the plan's answer can hold

request ID, email, SPF details, DMARC details, SPF record, DMARC record, valid, disposable, SMTP score, overall score, first name, generic address, known provider, DNS valid, honeypot, deliverability, frequent complainer, spam trap score, catch-all, timed out, suspect, recent abuse, fraud score, suggested domain, leaked, sanitized email, identity data, domain age, first seen, risky TLD, MX records, A records, request state, created at, updated at, message, success