AI Rook pricing: email verification API
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50% complete: 3 of the 6 fields on our checklistSee the 6 fields
$0.00per 1,000 emailsWe ran AI Rook in our email verification API benchmark. We didn't score any AI Rook plan.This plan is free. We rank 4,337 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. See the best free email verification API plan.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. StableEnrich's pay-as-you-go plan costs the least for 10,000 emails a month: $0.05.Disify's $9 monthly plan (/
Plan: Free trial one of AI Rook's 3 plans
- FreeFree trial$0.00 per 1,000
- Pay as you gox402 pay per call$1.00 per 1,000
- $5 packCredit pack$100.00 per 1,000
Call:
POST / AI Rook's only call for this APIAPI: Email verification API one of AI Rook's 4 APIs
About this item
- Freshness. We don't know how fresh this plan's data is.
- 3 of the 6 fields on our checklist. Address, Deliverability, Company.
- Nothing to pay. You get 1 request once.
- One call. You send
emailtoPOST /. The call returns whether the address takes mail.api/ email-validate - Who can get it: anyone, one free call per wallet or IP address on each paid endpoint. Keep data: no API terms. Use data: no API terms.
AI Rook: email verification API alternatives
AI Rook alternatives: other email verification API providers by price
The table starts with AI Rook's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to AI Rook's.
| AI Rook, pay as you go | Prime Verifier, $200 pack, Pay-As-You-Go 200,000 credits, POST /v1/verify/single | BillionVerify, $20 pack, Starter, POST /verify/bulk | MillionPhones, $100 monthly | DeBounce, top-up from $200, 200K credits, GET /v1/, Single email validation | Agent402 Tools, pay as you go | |
|---|---|---|---|---|---|---|
| $ per 1,000 emails | $1.00 | $1.00 | $1.00 | $1.00 | $1.00 | $1.00 |
| Completeness | 50% | 50% | 67% | 33% | 50% | 50% |
| Billing | pay as you go | pay first | pay first | monthly | pay first | pay as you go |
| Pay | per call | $200 | $20 | $100 | $200 | per call |
| Enough for | as many as you pay for | 200,000 calls | 20,000 results | 100,000 calls a month | 200,000 calls | as many as you pay for |
| Freshness | unknown | unknown | live | live | live | unknown |
| Who can get it | anyone with a wallet paying USDC on Base, Solana or Hedera, no account or API key | anyone 18 or older able to form a binding contract | anyone at least 18 years old and legally able to enter into a contract, for their internal business purposes only | anyone with a work email | anyone over 18 | anyone at least 18 (or the age of majority where they live, if higher), able to form a binding contract, not barred from receiving services under U.S. or other applicable law, not in an embargoed jurisdiction and not on a U.S. government sanctions list, with no account or API key, paying each call in USDC (or USDG on Robinhood Chain) over x402 or MPP |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Address
- Deliverability
- Confidence, not in the answer
- Name, not in the answer
- Place, not in the answer
- Company
| $ per 1,000 emails | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | 74 other calls: one free call each |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Email validation — syntax check plus live MX record DNS lookup to confirm deliverability. |
|---|
| What it checks | format, mail servers |
|---|---|
| Keep data | no API terms |
| Use data | no API terms |
| Pay | $0 |
|---|---|
| You get | 1 request |
| Enough for | 1 call, once |
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | |
|---|---|
| Method | POST |
| Path | /api/email-validate |
| Plan | Free trial |
|---|---|
| Who can get it | anyone, one free call per wallet or IP address on each paid endpoint |
The 5 fields the plan's answer can hold
email, domain, syntax valid, MX found, valid