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Postcoder pricing: email verification API

Postcoder's sitellms.txtBest email verification API in 2026: providers comparedPostcoder: 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 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 Postcoder's 20 plans
Call: GET /pcw/{apikey}/email/{email} Postcoder's only call for this API
API: Email verification API one of Postcoder's 2 APIs

About this item

  • Live. Postcoder checks the email when you call the API.
  • 2 of the 6 key fields we check. Deliverability, Confidence.
  • Nothing to pay.
  • One call. You send email to GET /pcw/{apikey}/email/{email}. You can also send identifier and timeout. The call returns whether the address takes mail.
  • Anyone can get it. Keep data: with conditions. Use data: with conditions.

Postcoder: email verification API alternatives

Postcoder alternatives: every email verification API provider ranked

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

Postcoder, £1,261 monthlyFiber AI, $300 monthlyClearout, $400 pack, 100,000 credits, POST /email_verify/instant, Instant Verify, fullBytemine, $500 monthly, Growth, POST /emails/verify/singleDropcontact, €199 monthly
$ per 1,000 emails$20.178$20.00$20.00$20.00$20.358
Completeness33%50%50%33%33%
Billingmonthlymonthlypay firstmonthlymonthly
Pay£1,261$300$400$500€199
Enough forabout 83,333 calls a month15,000 calls a month20,000 calls25,000 calls a month11,000 results a month
Freshnesslivelivelivelivelive
Who can get itanyoneanyone, to use only in the United Statesnot new usersbusiness users only: 18 or over, acting on behalf of a companyprofessionals acting within their activity (a natural person with the power to commit, or a legal person)

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.

  1. admin.postcoder.com/downloads/Licence-Agreement-v28.2.0.pdf
  2. postcoder.com
  3. postcoder.com/docs/credit-costs
  4. postcoder.com/docs/email-validation/email
  5. postcoder.com/docs/troubleshooting
  6. postcoder.com/email-validation
  7. postcoder.com/payments-billing-compliance
  8. postcoder.com/pricing
  9. postcoder.com/terms

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
  • Name, not in the answer
  • Place, not in the answer
  • Company, not in the answer
Price
$ per 1,000 emails$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: autocomplete/retrieve · address · reversegeo · position · udprn · street · nyb · ipaddress · ngd/retrieve · ngd · pafaddressbase · addressbase · addressbase/uprn · addressbase/dpa · addressbase/lpi · mobile · bank · bank/sortcode · bank/iban · otp/send
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
In their words
Their pitchPostcoder checks and validates email addresses in real-time as soon as they're typed into your form. Block incorrect or fraudulent signups, and capture real and deliverable email addresses from genuine customers.
Data
Freshnesslive
What it checksformat, mail servers, disposable domains, mailbox
Keep datauntil the licence ends (12 months from acceptance, or sooner when the credit pack is used up or expires or the monthly plan is cancelled), then destroy all copies and confirm it in writing within 7 days
Use datayour own internal business use, or inside a product or service you sell to your own clients if you enforce Postcoder's end-user terms on them and give Postcoder each client's company details and usage summary, legal purposes only, API calls only for requests people start in real time (e.g. a website form), not a batch script working through a database, unless agreed in writing
Plan
Pay£0
Expires30 days
Rate limit
Batch1
Speed
Answerin the call
Median0.86 s
The call
You sendemail. Optional: identifier, timeout
MethodGET
Path/pcw/{apikey}/email/{email}
About the plan
PlanFree trial
Who can get itanyone
The 6 fields the plan's answer can hold

warning, state, valid, score, processing time, did you mean

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