Work in progress. We haven't benchmarked most of these providers yet, so most plans have no Overall score.

Cached email validation API plans

Name: Cached email validation API plans
Creator: Datacircle
License: https://creativecommons.org/licenses/by/4.0/

Fields explainedCSV JSON zip

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z	AA	AB	AC	AD	AE	AF	AG	AH	AI	AJ	AK	AL	AM	AN	AO	AP	AQ	AR	AS	AT	AU	AV	AW	AX	AY
1	API	Score						Price			Not found	Addresses judged					Time per address						The validation call		Aggregators	Charges			Overage		Catch-all	Bounce	In their words	Data			Plan				Rate limit			Speed		The call			About the plan		Sources
2	API plan	Overall score	Price score	Data score	Cost to get started score	Bundle score	Performance score	$ per 1,000	Billing	$ a month	$ per 1,000	Called	Real, said valid	Bounced, said invalid	Wrong	Unsure	Median	10th percentile	90th percentile	Fastest	Slowest	Baseline	Call	Charged per address	Aggregators	Repeat free	Per	Also pays for	$ per 1,000	Add-ons	$ per 1,000	Bounce refund	Their pitch	Freshness	Keep data	Use data	Pay	You get	Enough for	Expires	Per second	Concurrent	Batch	Answer	Median	You send	Method	Path	Plan	Who can get it	Read from
	Cached email validation · 8 plans
3	Hunter, $299 monthly	72.1	58	76	65	93	100	$5.98	monthly	$299	$0.00	19 of 19	9 of 13	5 of 6	0 of 19	5 of 19	1.95 s	0.70 s	2.76 s	0.16 s	4.45 s	0.42 s	GET api.hunter.io/v2/email-verifier	$0.0055	Clay: your key no Data Credits, 1 Action per call (Actions start at less than $0.01 each), paid, no fixed price · Deepline: your key free for 50,000 calls a month, then $5.00 per 1,000, paid $15.00 per 1,000 results · Monid: paid $12.25 per 1,000 results · Orthogonal: paid $10.00 · treg: your key free, paid $12.25	the same billing month	call	Sequences: 20 connected email accounts, 15,000 recipients per sequence · Saved Leads: 30,000,000 · AI Assistant in Discover: 300 included AI searches a month, 900 included proactive suggestions a month · from the same budget: Bulk Email Finder · Domain Search · Bulk Domain Search · Email Finder · Bulk Email Verifier · Multi-Domain Search reveal · Email Enrichment · Company Enrichment · Combined Enrichment · Hunter Discover (when finding emails)		100 credits once for $5 ($25.00 per 1,000) · 1,000 credits once for $35 ($17.50 per 1,000) · 10,000 credits once for $200 ($10.00 per 1,000)	$5.98		Verify any email address with a simple API call.	1 month	Data minimization: not storing data beyond what is needed for the stated purpose.	B2B outreach and prospecting: identifying and contacting relevant professional contacts at target companies for legitimate business purposes, sales, marketing, partnership, or recruitment, where the individual is being contacted in their professional capacity. [...] CRM enrichment: verifying or enriching a company’s existing B2B contact database, where the individuals are professional contacts with whom a business relationship is sought or maintained. [...] Internal research and analysis: internal analysis of company-level contact patterns for legitimate business intelligence purposes. This does not extend to bulk export of individual-level personal data for redistribution, resale, or use outside the permitted purposes in this section. [...] API integration and testing: technical integration and testing of the API using test accounts and non-production data environments. [...] Prohibited: Sending unsolicited bulk commercial email using Hunter data, in violation of CAN-SPAM, CASL, the EU ePrivacy Directive, or equivalent applicable law. [...] Contacting individuals in a harassing, threatening, or abusive manner, facilitating stalking, doxing, or targeted harassment campaigns, sharing Hunter data in contexts designed to expose individuals to harm, ridicule, or unwanted public attention. [...] Processing Hunter data in violation of applicable data protection law, combining Hunter data with special category data to build legally non-compliant profiles, sharing or reselling Hunter data to third parties without prior written authorization from Hunter. [...] Using Hunter data for political campaigning, voter outreach, or micro-targeting based on inferred political opinions. [...] Using Hunter-sourced email addresses for credential stuffing, phishing, account compromise, or social engineering attacks. [...] Contacting individuals as private consumers rather than in a professional B2B context. Hunter’s database is limited to professional contact data and must not be used for B2C marketing. [...] Using Hunter data as the sole input to automated mass outreach sequences with no individualized relevance or genuine business purpose, i.e. spam with a company name attached. [...] Under this license you may not: Build a similar or competitive service without Hunter’s prior written consent.	$299	25,000 credits a month	50,000 calls a month	at the monthly reset, credits don't roll over	5		1	in the call or by polling	1.95 s	email. Optional: domain_metadata	GET	/email-verifier	Scale	anyone 18 or over (in India, businesses only)

4	Bouncer, $320 monthly	N/A	78	N/A	55	83	N/A	$3.20	monthly	$320	$0.00														none	24 hours	result	from the same budget: Verify email · Create batch request · Verify domain · Create toxicity list job · Email Verification			$3.20	money back (a credit or refund) for an address it said deliverable that bounces within 72 hours of the check, for an objective reason, not spam or soft bounces	Bouncer Email Verification API lets you validate email address and verify its deliverability, in the way you want. It’s easy to integrate, powerful, robust, secure, ultrafast and affordable.	24 hours	no limit	In order to use our Services, you must agree to verify only email addresses for which the Recipients have granted you verifiable permission for the messages to be sent – all Recipients must have opted-in to receive communications from you. [...] You may not use our Services to: verify email addresses without the subscriber’s permission to receive email communications from your entity, verify purchased lists (whether they are opt-in or not), verify harvested email addresses from web sites or other sources, verify permutations of email addresses, verify generated email addresses. [...] You may: verify email addresses for which a user has opted-in to receive email communications from you, verify email addresses provided by your end-users via a sign-up form. [...] As a user of the Site, you agree not to: [...] use any information obtained from the Site in order to harass, abuse, or harm another person, use the Site as part of any effort to compete with us or otherwise use the Site and/or the Content for any revenue-generating endeavor or commercial enterprise [...], use the Site in a manner inconsistent with any applicable laws or regulations.	$320	100,000 credits a month	100,000 results a month	never	1.67		10,000	in the call		email. Optional: Content-Type	POST	/v1.1/email/verify/batch/sync	Monthly Subscription, 100,000 credits	anyone 18 or over with a work email, a private one (Gmail, Hotmail) only after writing to Bouncer first
5	ContactOut, contact us, Team / API, POST /v1/email/verify/batch	N/A							contact		$0.00														none		result	LinkedIn Profile API from LinkedIn URL · LinkedIn Profile API from email address · People Enrich API · Contact Info API - Single · Contact Info API - Bulk · Company information from domains · People Search API · Decision Makers API · Company Search API · Email to LinkedIn API · Hashed Email API · People Count API · Contact Checker API - Personal Email Checker · Contact Checker API - Work Email Checker · Contact Checker API - Phone Number Checker · from the same budget: Email Verifier API - Single					Verify your email list to Reduce bounce rates, Protect sender reputation and Reach high-quality prospects	1 hour	governed by the subscription agreement and subscription order form entered into between you and ContactOut, they prevail over its Terms of Use	governed by the subscription agreement and subscription order form entered into between you and ContactOut, they prevail over its Terms of Use					16.67		100	by polling or webhook		emails. Optional: callback_url	POST	/v1/email/verify/batch	Team / API	anyone
6	Email Hippo, $468 monthly	N/A	54	N/A	62	0	N/A	$4.68	monthly	$468	$4.68														none		call	nothing else			$4.68		Verify emails instantly with Email Hippo MORE. Prevent fake sign-ups, reduce fraud, and improve data accuracy with our secure, high-speed API.	30 days	no limit	solely for Your internal business purposes. For the avoidance of doubt, You may not: (a) Modify, change or create any derivative works of Email Hippo Services, including translation or localization, (b) Copy, decompile, disassemble, decrypt, reverse engineer, or otherwise attempt to derive the source code for Email Hippo Services, (c) Redistribute, encumber, sell, rent, lease, sublicense, display, publish, disclose or otherwise transfer rights to Email Hippo Services, in whole or in part, to any other person or entity, (d) Remove or alter any trademark, logo, copyright or other proprietary notices, legends, symbols or labels in Email Hippo Services, (e) Permit any unauthorized person to access or use the Email Hippo Services or use the Hosted Services to provide services to third parties, (f) Interfere with or disrupt the integrity or performance of the Email Hippo Service or Hosted Services or the data contained therein, or (g) Attempt to gain unauthorized access to the service or its related systems or networks or make any alteration to the Platform, except as permitted by the documentation. You agree to comply with all applicable laws and regulations in connection with Your use of Email Hippo Services	$468	100,000 requests a month	100,000 calls a month	at each 30-day quota reset, no rollover			1	in the call		e	GET	/v3/more/json/{k}/{e}	MORE 100,000 Edition 2 (Monthly)	anyone, as an individual or a duly authorized representative for an entity (USD, GBP or EUR set by country)
7	Mailgun, $420 monthly, Foundation, 50,000 emails a month, next 50,000 validations, POST /v4/address/validate/bulk/{list_id}	N/A	51	N/A	63	67	N/A	$5.00	monthly	$420															none		result	Send email API (50,000 emails a month) · from the same budget: Single Validation					See better results from your email list. Embed our email validation API into your site, form, or application to automatically verify all incoming addresses before you hit send.	stored	no limit	You may use the Services for commercial and professional purposes only [...] With respect to any of the Services' email verification features or functionality, you may not: use the Services to verify the email address(es) of any person who has not affirmatively consented (i.e., opted-in) to, or who has expressly opted-out from receiving email communications from you, use the Services to validate email addresses that were purchased, rented or similarly obtained from a third party (i.e., third party email lists), or, use the Services to harvest or generate email addresses or otherwise determine the existence of unknown email addresses	$420	from the 50,001st result a month				5	no limit	by polling or webhook		list_id. Optional: file	POST	/v4/address/validate/bulk/{list_id}	Foundation, 50,000 emails a month, next 50,000 validations	professional use only, not minors under the age of 18
8	MailValid, $499 monthly, MailValid Plus 500,000 credits, POST /api/v1/verify/bulk	N/A	100	N/A	62	50	N/A	$0.998	monthly	$499	$0.00														none	never	result	from the same budget: Single Email Verification		5,000 credits once for $19 ($3.80 per 1,000) · 10,000 credits once for $38 ($3.80 per 1,000) · 25,000 credits once for $79 ($3.16 per 1,000) · 50,000 credits once for $119 ($2.38 per 1,000) · 100,000 credits once for $179 ($1.79 per 1,000) · 250,000 credits once for $399 ($1.596 per 1,000) · 500,000 credits once for $599 ($1.198 per 1,000) · 1,000,000 credits once for $899 ($0.899 per 1,000)	$0.998	the equivalent credits of misverified emails, on a batch of 1,000+ below 99% accuracy, reported with its batch ID and bounce rate data and confirmed	MailValid's email verification API checks syntax, DNS/MX records, and SMTP mailbox existence in a single REST call, returning a result in under 500ms.	30 days	no limit	You agree NOT to use the Service to: Verify email addresses obtained without consent (spam, scraping, purchased lists), Violate any applicable laws, including anti-spam regulations (CAN-SPAM, GDPR, etc.), Resell, sublicense, or redistribute access to the Service without written permission, Attempt to reverse-engineer, decompile, or extract the Service's underlying technology, Exceed rate limits or attempt to disrupt the Service's infrastructure, Use the Service for any illegal, harmful, or fraudulent purpose	$499	500,000 credits a month	500,000 results a month	never, unused credits roll over	3.33		10,000	by polling or webhook		emails. Optional: webhook_url, filename, source_data	POST	/api/v1/verify/bulk	MailValid Plus 500,000 credits	anyone at least 18 years old
9	Renidly, $50 pack	N/A	0	N/A	72	50	N/A		pay first																none			from the same budget: every billable request to the data, live, and email APIs					A bounce is not free: mailbox providers score your domain on every failed send. Check any address against the receiving mail server first: deliverable or not, with catch-all, disposable, and dead-domain conditions called out by name.	20 minutes	no limit	Subject to your compliance with these Terms, we grant you a non-exclusive, non-transferable, revocable licence to access and use the Service for your internal business purposes during the term. [...] You agree not to: Use the Service to violate any law, regulation, or third-party right. Re-sell, sub-license, or repackage the Service or its raw data outputs as a competing data product without our prior written agreement. [...] Build profiles to harass, dox, or discriminate against individuals, or to make automated decisions producing legal or similarly significant effects on a person without an adequate lawful basis and human review. Use the Service to send unsolicited bulk communications in violation of applicable anti-spam laws (including CAN-SPAM, CASL, GDPR/ePrivacy and equivalents). [...] You are responsible for: [...] Ensuring your downstream use of enriched data complies with all applicable laws.	$50	6,000 credits		never	0.5		1	in the call		email	GET	/api/emails/v1/verify	Hobby	anyone 18 or over with a work email (Gmail, Yahoo, Outlook and other free providers aren't accepted)
10	SalesQL, $119 monthly	N/A	46	N/A	72	80	N/A	$5.95	monthly	$119	$5.95														none	never	call	Enrich Person · Email Lookup Person · Bulk Enrich Persons · from the same budget: Bulk Verify Emails			$5.95		Reduce bounce rates and ensure your emails reach real inboxes with our reliable email verifier.	120 days	right to access Profile Data through the Services for the Customer's internal business purposes during the Subscription Term [...] On termination of these Terms or expiry of the Subscription Term: [...] the Customer must cease all use of Profile Data obtained from the Services, except for Profile Data that the Customer has lawfully integrated into its own systems and is processing as an independent controller in accordance with applicable law and these Terms [...] Where SalesQL informs the Customer that a Business Contact has objected to processing or has been removed from the Profiles Database, the Customer will, without undue delay, suppress that Business Contact's data in the Customer's own systems	SalesQL grants the Customer a limited, non-exclusive, non-transferable, revocable right to access Profile Data through the Services for the Customer's internal business purposes during the Subscription Term. [...] The Customer must not, and must not allow any End User or third party to: access or use the Services in violation of applicable law, third-party rights, or these Terms, copy, modify, translate, adapt or create derivative works of the Services or the Profiles Database, except as expressly permitted, [...] create or operate multiple Accounts (including under different identities, email addresses or organisations) to obtain additional free-tier or promotional credits, or to evade rate limits, credit limits, suppressions or other restrictions under these Terms or the AUP (see the AUP, Section 4), access, scrape, copy or download the Services or the Profiles Database in bulk, including by means of automated tools other than SalesQL's official API or MCP Server used in accordance with the Documentation and the applicable rate limits, resell, sublicense, rent, lease, distribute or transfer the Services or the Profiles Database to any third party, or use the Services to provide services to third parties on a service-bureau, white-label or hosted basis, [...] attempt to circumvent any security, authentication, rate-limit, or access-control mechanism of the Services, [...] use the Services to develop a competing product or to benchmark the Services for the purpose of building a competing product. [...] the Customer must not: use Profile Data to build or contribute to a competing B2B contact database, sales-intelligence platform or data broker, combine Profile Data with consumer data or other data sets in a way that would create a profile for non-business purposes, use Profile Data for credit, employment, housing or insurance decisions, sell, license or otherwise commercialise Profile Data to third parties. [...] The Customer will not use the Services to target Recipients on the basis of, or to send communications relating to, special categories of personal data, including health, religion, political opinions, sexual orientation, trade-union membership, or other categories that benefit from heightened protection under applicable law, except where the Customer has obtained the explicit consent of the Recipient or has another valid lawful basis. The Customer will not use the Services for any of the following purposes: consumer-targeted marketing, except where the Recipient has provided informed consent under applicable laws, communications relating to gambling, adult content, weapons, controlled substances, get-rich-quick schemes, multi-level-marketing schemes, or fraudulent or deceptive schemes, harassment, threats, defamation, hate speech or unlawful discrimination, communications targeting individuals identified as employed by, or affiliated with, government, judicial, military, intelligence or law-enforcement institutions in their capacity as such, where such targeting would constitute interference with public functions under applicable law, communications relating to political campaigns or elections, except where the Customer is registered with the applicable electoral authorities and has complied with all applicable election laws, communications relating to personal injury solicitation, debt collection, or consumer financial products, except where the Customer is licensed to engage in those activities under applicable law, any other purpose prohibited by the AUP. [...] Data accessed or generated through a Customer-Authorized Tool is used exclusively by the Customer and its End Users for the Customer's internal business purposes, and is not redistributed, resold, sublicensed, made available, or otherwise disclosed to any third party, including the operator of the Customer-Authorized Tool except as strictly necessary for the technical operation of that tool on the Customer's behalf. [...] Making automated requests against non-public or undocumented endpoints is prohibited and can result in account suspension.	$119	20,000 credits a month	20,000 calls a month				1	in the call		email	POST	/emails/verify	Premium	at least 18 years old and capable of entering into a legally binding contract, for businesses and other organisations, not for personal, family or household use
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63	Bouncer, free
64	ContactOut, contact us, Team / API, GET /v1/email/verify
65	Email Hippo, free
66	Hunter, free
67	Mailgun, $15 monthly, Basic, 10,000 emails a month, POST /v4/address/validate/bulk/{list_id}
68	Mailgun, $15 monthly, Basic, 10,000 emails a month, GET /v4/address/validate
69	MailValid, free, Free, POST /api/v1/verify/bulk
70	MailValid, free, Free, POST /api/v1/verify/single
71	SalesQL, $79 monthly

Datacircle lists all the GTM APIs

8 of 251 rows

We add each plan's price, data, cost to get started, bundle and performance scores at their weights and scale the total to 100. Data and performance come from our benchmark, so until we benchmark the provider they are N/A, and so is the plan's overall score. A plan whose data score is 0 has an overall score of 0, whatever its other scores. Point at any score to see how we scored it. Move a weight to rank the plans by the new scores.

Price40

Price › $ per 1,000
Not found › $ per 1,000

Data40

Addresses judged

Our benchmark of the provider's call. N/A on a call we haven't benchmarked. Each API's sheet shows what we measured on each benchmarked plan, in the columns after its price.

Cost to get started10

About the plan › Who can get it
Price › Billing
Plan › Pay
Price › $ per 1,000

On a pay as you go plan, the price of one result. On a tier that starts after a set number of monthly calls, the cost of those first calls.

Bundle10

Charges › Also pays for

Performance10

Time per address › Median

Our benchmark of the provider's call. N/A on a call we haven't benchmarked. Each API's sheet shows what we measured on each benchmarked plan, in the columns after its price.

Best GTM APIs

Cached email validation API plans

Best GTM APIs