# VerifyGrid, free: Email verification API

> Block throwaway burner domains, verify MX/SPF/DMARC DNS records, and score B2B SaaS trial signups in real time via REST or MCP.

VerifyGrid's Sandbox Key plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. VerifyGrid's docs list 3: Address, Deliverability, Company.
We haven't run VerifyGrid through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 4,716 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [733 email verification API plans on our price sheet are free.](https://datacircle.dev/best-email-verification-api.txt) [pingutil's free plan](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) scores highest of the free plans in our benchmark, at 82.3 out of 100.
[PayPerQ's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/payperq/pay-as-you-go-pay-per-request-with-l402-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.06.
[Disify's $9 monthly plan (/email)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails.
[Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/verifygrid/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://verifygrid.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://verifygrid.io/mcp`
- API key: with the plan, on https://verifygrid.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://verifygrid.io/tools/b2b-email-deliverability?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: VerifyGrid (https://verifygrid.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Company: ✓

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Verify FMCSA USDOT/MC carrier operating authority, insurance, BOC-3, and 2027 UCR · Verify 10-digit Healthcare NPI provider via D1 cache and live CMS NPPES API · Screen entity or individual against OFAC SDN, HHS OIG LEIE, SAM.gov, and EPA ECHO · Validate phone E.164, NANPA line type, carrier OCN, and TCPA DNC / serial litigator status · Verify SEC EDGAR CIK, incorporation state, SIC code, and corporate standing

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Block throwaway burner domains, verify MX/SPF/DMARC DNS records, and score B2B SaaS trial signups in real time via REST or MCP.

## Data

- What it checks: mail servers, disposable domains
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 50 credits
- Enough for: 50 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: jsonrpc "2.0", id, method "tools/call", params.name "validate_email_signup", params.arguments.email. Optional: params.arguments.ip_address
- Method: POST
- Path: /mcp

## About the plan

- Plan: Sandbox Key
- Who can get it: anyone

## The 8 fields the plan's answer can hold

email address, domain, deliverable, disposable, MX records valid, free trial abuse risk, source, provenance timestamp

## VerifyGrid's plans (4)

- [VerifyGrid, free](https://datacircle.dev/validate-email-apis/verifygrid/free/llms.txt): $0.00 per 1,000, 50% complete
- [VerifyGrid, $49 monthly](https://datacircle.dev/validate-email-apis/verifygrid/49-monthly/llms.txt): $1.96 per 1,000, 50% complete
- [VerifyGrid, $199 monthly](https://datacircle.dev/validate-email-apis/verifygrid/199-monthly/llms.txt): $1.327 per 1,000, 50% complete
- [VerifyGrid, $499 monthly](https://datacircle.dev/validate-email-apis/verifygrid/499-monthly/llms.txt): $0.998 per 1,000, 50% complete

## VerifyGrid's calls for this API (1)

- `POST /mcp`: [VerifyGrid, free](https://datacircle.dev/validate-email-apis/verifygrid/free/llms.txt)

## VerifyGrid's APIs (4)

- [VerifyGrid Business verification API pricing, 4 plans](https://datacircle.dev/business-verification-apis/verifygrid/free/llms.txt)
- [VerifyGrid Company enrichment API pricing, 4 plans](https://datacircle.dev/company-enrichment-apis/verifygrid/free/llms.txt)
- [VerifyGrid Email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/verifygrid/free/llms.txt)
- [VerifyGrid Phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/verifygrid/free/llms.txt)

## VerifyGrid: email verification API alternatives

[VerifyGrid alternatives: other email verification API providers by price](https://datacircle.dev/verifygrid-alternatives.txt)

We list VerifyGrid's cheapest paid plan first. Next we list other providers' plans closest to VerifyGrid in price per 1,000 emails.

- [VerifyGrid, $499 monthly](https://datacircle.dev/validate-email-apis/verifygrid/499-monthly/llms.txt): $0.998 per 1,000, 50% complete
- [MailValid, $499 monthly, MailValid Plus 500,000 credits, POST /api/v1/verify/bulk](https://datacircle.dev/validate-email-apis/mailvalid/499-monthly-mailvalid-plus-500000-credits-post-api-v1-verify-bulk/llms.txt): $0.998 per 1,000, 67% complete, 30 days
- [No2Bounce, $499 pack](https://datacircle.dev/validate-email-apis/no2bounce/499-pack/llms.txt): $0.998 per 1,000, 0% complete, live
- [Anymail Finder, $4,990 pack](https://datacircle.dev/validate-email-apis/anymail-finder/4990-pack/llms.txt): $0.998 per 1,000, 17% complete, live
- [SafetyMails, $998 monthly](https://datacircle.dev/validate-email-apis/safetymails/998-monthly/llms.txt): $0.998 per 1,000, 33% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://verifygrid.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifygrid.io/.well-known/mcp.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifygrid.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifygrid.io/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifygrid.io/tools/b2b-email-deliverability?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing