Trestle pricing: email verification API

Trestle's site llms.txt Best email verification API in 2026: providers compared Trestle: email verification API alternatives

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17% complete: 1 of the 6 key fields we checkSee the 6 fields

$0.00per 1,000 emailsWe rank 3,227 plans by price. 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 (/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 our benchmark.

Plan: Free trial one of Trestle's 3 plans

Call: GET /2.0/real_contact, Real Contact API one of Trestle's 2 calls for this API

API: Email verification API one of Trestle's 2 APIs

About this item

Stored. Trestle may answer from Trestle's stored data instead of asking the mail server. Trestle doesn't say how old the data is.
1 of the 6 key fields we check. Deliverability.
Nothing to pay. You get up to 25 calls in all. Unused calls expire after 14 days.
One call. You send name and phone to GET /2.0/real_contact. The call returns whether the address takes mail.
Who can get it: companies, with a business email address. Keep data: for the duration of this Agreement. Use data: with conditions.

Trestle: email verification API alternatives

Trestle alternatives: every email verification API provider ranked

The table starts with Trestle's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to Trestle's. Each plan in the table gives stored data.

	Trestle, top-up from $10, Self-Serve, pay as you go, GET /2.0/real_contact, Real Contact API	Bytemine, $250 monthly, Starter, POST /fraud-check	Minelead, $348 yearly, Starter, GET /detect-disposable	TrekMail, $29 monthly, Agency, POST /verify, Verify one address (quick)	Strale, pay as you go, x402 (USDC on Base), GET /x402/email-validate
$ per 1,000 emails	$30.00	$25.00	$29.00	$29.00	$32.40
Completeness	33%	50%	33%	50%	50%
Billing	pay first	monthly	yearly	monthly	pay as you go
Pay	$10	$250	$348	$29	per call
Enough for	about 333 calls	10,000 calls a month	12,000 calls a year	1,000 calls a month	as many as you pay for
Freshness	stored	stored	stored	stored	stored
Who can get it	companies, with a business email address	business users only: 18 or over, acting on behalf of a company	anyone	anyone at least 18 years of age (or the age of majority in their jurisdiction) and not barred from receiving services under sanctions laws	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 2026-10-29.

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, not in the answer

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

Aggregators
Aggregators	none

Charges
Also pays for	nothing else

Not found
$ per 1,000	$0.00

In their words
Their pitch	Real Contact API is a comprehensive lead verification API that confirms the legitimacy and contactability of your consumer or business data in real-time.

Data
Freshness	stored
What it checks	format, mail servers
Keep data	for the duration of this Agreement
Use data	Customer is authorized to use the Trestle Data for identity verification, lead verification, identity management, caller identification, routing, prioritization use cases, to scrub lists for outbound dialing, and/or for any additional use case(s) expressly set forth on the applicable Order. Customer will not, and shall ensure its Affiliates and Users do not: (a) use the Trestle Data for marketing purposes except to respond to an inbound request, (b) use the Trestle Data in violation of any applicable laws, rules, or regulations or in violation of any third-party right, (c) store or otherwise use the Trestle Data for purposes other than the internal business purposes of the Customer, as contemplated in the applicable Order or Customer Agreement, (d) use the Trestle Data in conjunction with activities prohibited by law, (e) store or cache the Trestle to avoid making additional Queries to the Services, (f) merge stored Trestle Data with other data unless it is coded or tagged to indicate Trestle as its source, or (g) use the Trestle Data for file download in a fixed page format (i.e., create a printable, downloadable directory of personal information). [...] Customer will not: (a) make any Services or Trestle Data available to anyone other than Customer, its Affiliates, and their respective Users, (b) use the Services or Trestle Data for the benefit of anyone other than Customer or its Affiliates, (c) resell, distribute, or otherwise disclose or make available the Services or Trestle Data [...] without the prior written consent of Trestle [...] (h) use the Services or Trestle Data to build a competitive product or service [...] Customer may not use the Services or Trestle Data in connection with any FCRA purpose

Plan
Pay	$0
Enough for	25 calls, once
Expires	14 days

Rate limit
Per second	10
Batch	1

Speed
Answer	in the call

The call
You send	name, phone. Optional: first_name, last_name, business.name, email, address.street_line_1, address.street_line_2, address.city, address.state_code, address.postal_code, address.country_code, ip_address, add_ons, source_id
Method	GET
Path	/2.0/real_contact

About the plan
Plan	Free trial
Who can get it	companies, with a business email address

The 4 fields the plan's answer can hold

valid, contact grade, name match, warnings