Data Legion pricing: email verification API

Data Legion's site llms.txt Email validation API: 180+ verification providers compared Data Legion: email verification API alternatives

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33% complete: 2 of the 6 key fields we checkSee the 6 fields

$0.00per 1,000 emailsWe haven't run Data Legion through our email verification API benchmark yet.Half of the 3,753 plans we rank by price cost $1.98 per 1,000 emails or less. This plan and 50 others tie for the lowest price per 1,000 emails of the 3,753 plans.Disify's $9 monthly plan (/email) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.MailTester Ninja, Enrich.so and GetProspect are the best email verification API providers in the Datacircle benchmark.

Plan: Utility Endpoints Data Legion's only plan

FreeUtility Endpoints$0.00 per 1,000

Call: POST /utility/validate Data Legion's only call for this API

POST /utility/validateFree$0.00 per 1,000

API: Email verification API one of Data Legion's 5 APIs

About this item

Stored. Data Legion may answer from Data Legion's stored data instead of asking the mail server. Data Legion doesn't say how old the data is.
2 of the 6 key fields we check. Deliverability, Company.
Nothing to pay. You get up to 4,320,000 calls a month.
One call. You call POST /utility/validate. Every input is optional.
Who can get it: with conditions. Keep data: with conditions. Use data: with conditions.

Data Legion: email verification API alternatives

Data Legion alternatives: every email verification API provider ranked

We list other providers' plans closest to this plan in price per 1,000 emails. Each plan in the table gives stored data.

	This planData Legion, free	KaijuVerifier, free, POST /api/v1/jobs, Submit an async bulk job	DeBounce, free API	OneShot, free	MailSift, free, GET /verify, Verify one email	X402 Farm, free
$ per 1,000 emails	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
Completeness	33%	50%	17%	33%	67%	17%
Billing	free	free	free	free	free	free
Pay	$0	$0	$0	$0	$0	$0
Enough for	4,320,000 calls a month	100 results a month	not published	1,000 calls, once	500 calls, once	30 calls a month
Freshness	stored	stored	stored	stored	stored (MX, SPF, DMARC: live)	stored
Who can get it	anyone, for legitimate B2B business purposes, not in a sanctioned or restricted jurisdiction or on a restricted-party list	anyone	anyone over 18	anyone, consumer or business, not in a country under a U.S. government embargo or on a U.S. restricted-party list, with a new personal workspace (its console claims the credit)	anyone 16 or older	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 2026-10-31.

Product details

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

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

Price
$ per 1,000 emails	$0.00
Per	call
Billing	free

Aggregators
Aggregators	none

Charges
Also pays for	Field Cleaning API: 100 requests/min · Email Hashing API: 100 requests/min · Report a Data Issue API (person): 50 requests/min · Report a Data Issue API (company): 50 requests/min

Not found
$ per 1,000	$0.00

In their words
Their pitch	Validate person and company data format and get suggestions before sending to search or enrich endpoints.

Data
Freshness	stored
What it checks	format, mail servers, disposable domains
Keep data	no limit, but "Data Legion Inc. reserves the right to: [...] Require customers to delete data upon termination"
Use data	Our data products are intended for legitimate B2B business purposes, including: Sales Prospecting: Identifying and reaching potential business customers, Marketing Campaigns: Account-based marketing, email marketing (with proper consent where required), and audience building, Recruiting: Identifying potential candidates for open positions, Market Research: Analyzing market trends, competitive intelligence, and industry analysis, Data Enrichment: Enhancing your existing customer or prospect records, Analytics: Building models, conducting research, and generating business insights, Due Diligence: Verifying business contacts and conducting background research for legitimate business purposes, Platform Integration: Powering B2B applications, CRMs, and business tools [...] The following uses of our data are strictly prohibited: Consumer Marketing: Using B2B data for direct-to-consumer marketing unrelated to business purposes, Harassment or Stalking: Using data to harass, stalk, or harm any individual, Discrimination: Using data to discriminate against individuals based on protected characteristics, Fraud or Deception: Using data to commit fraud, identity theft, or any deceptive practices, Spam: Sending unsolicited bulk communications in violation of applicable laws (CAN-SPAM, etc.), Resale Without Authorization: Reselling or redistributing our data without explicit written permission, Illegal Activities: Any use that violates local, state, federal, or international laws, Sanctioned Parties and Jurisdictions: Accessing or using our data while located in, or on behalf of any party in, a comprehensively sanctioned jurisdiction (Cuba, Iran, North Korea, or the Crimea, Donetsk, and Luhansk regions of Ukraine), or as a party identified on a U.S. restricted-party list (including OFAC's Specially Designated Nationals list), Credit Decisions: Data Legion data is not a consumer report and may not be used to make decisions about credit, insurance, employment eligibility, housing, or any other purpose covered by the Fair Credit Reporting Act (FCRA), Data Scraping Enhancement: Using our data to enhance or validate data obtained through unauthorized scraping [...] As a customer of Data Legion Inc., you agree to: Comply with Laws: Use data in compliance with all applicable laws and regulations, including CCPA, CAN-SPAM, TCPA, and other privacy laws, Honor Opt-Outs: Promptly honor any opt-out or unsubscribe requests from individuals you contact, Maintain Security: Implement appropriate security measures to protect the data from unauthorized access or disclosure, Limit Access: Restrict data access to authorized personnel within your organization, Update Records: Maintain accurate records and update your data regularly with our refresh files, Suppression Lists: Maintain and respect internal suppression lists and do-not-contact requests, Report Violations: Notify us promptly of any suspected data breach or misuse, Sanctions and Export Compliance: Comply with U.S. sanctions and export laws (OFAC) and the DOJ Data Security Program (28 C.F.R. Part 202). Do not sell, transfer, or provide access to our data to any "country of concern" or "covered person" (China including Hong Kong and Macau, Russia, Iran, North Korea, Cuba, and Venezuela), and impose a contractual prohibition on onward transfer to such parties before reselling or providing our data to any foreign person [...] When using our data for outreach, you must: Include clear identification of your company in all communications, Provide a valid physical mailing address in email communications, Include a clear and conspicuous unsubscribe mechanism, Honor unsubscribe requests within 10 business days, Comply with TCPA regulations for phone and SMS outreach, Respect time zone and business hour considerations, Never use deceptive subject lines or misleading content [...] Customers must implement reasonable security measures, including: Encryption of data at rest and in transit, Access controls and authentication for systems containing the data, Regular security assessments and monitoring, Employee training on data handling and privacy, Incident response procedures for data breaches [...] You must not share API keys with unauthorized parties [...] You will not use, export, re-export, or provide access to the Site or our data in violation of any applicable sanctions or export control laws [...] You will not knowingly sell, license, transfer, or otherwise provide access to our data, in bulk or otherwise, to any "country of concern" or "covered person" as defined under 28 C.F.R. Part 202, which currently means China (including Hong Kong and Macau), Russia, Iran, North Korea, Cuba, and Venezuela, and persons owned by, controlled by, or acting on behalf of those jurisdictions. If you resell or otherwise make our data available to any foreign person, you agree to impose a contractual prohibition on onward transfer to such countries of concern and covered persons

Plan
Pay	$0
Enough for	4,320,000 calls a month

Rate limit
Per second	1.67
Batch	1

Speed
Answer	in the call

The call
You send	nothing required. Optional: email, phone, first_name, last_name, full_name, social_url, address, state, country, company, school, birth_date, domain, ticker_symbol, linkedin_company_url
Method	POST
Path	/utility/validate

About the plan
Plan	Utility Endpoints
Who can get it	anyone, for legitimate B2B business purposes, not in a sanctioned or restricted jurisdiction or on a restricted-party list

The 21 fields the plan's answer can hold

valid, errors, error field, error value, error message, error suggestion, warnings, warning field, warning value, warning message, warning suggestion, suggestions, suggestion field, cleaned value, domain, mail, mail servers, disposable, free, relay, intended domain