# SendSure, free, POST /api/scoring/score: Email verification API

> Predictive quality scoring without full SMTP verification. Runs syntax, disposable, role-based, DNS/MX, domain intelligence, and ML scoring. Faster and cheaper than full verification.

SendSure's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Confidence, Company.
We haven't run SendSure through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,753 plans for email verification APIs by price. Half the plans cost $1.98 per 1,000 emails or less.
[treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) 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)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/sendsure/free-post-api-scoring-score
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://sendsure.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://api.sendsure.ai/api/scoring/score`
- API key: with the plan, on https://sendsure.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://sendsure.ai/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#tag/email-scoring/POST/api/scoring/score
- Sold by: SendSure (https://sendsure.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-03

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Verify a single email address · Verify a batch of emails · Start processing a job · Batch score up to 1000 emails

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Predictive quality scoring without full SMTP verification. Runs syntax, disposable, role-based, DNS/MX, domain intelligence, and ML scoring. Faster and cheaper than full verification.

## Data

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

## Plan

- Pay: $0
- You get: 10 credits
- Enough for: 50 results

## Rate limit

- Per second: 0.14
- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: one of email or emails
- Method: POST
- Path: /api/scoring/score

## About the plan

- Plan: Free
- Who can get it: anyone

## The 19 fields the plan's answer can hold

success, result count, credits charged, email address, score, quality score, risk band, risk score, flags, syntax valid, disposable, role-based, free provider, MX valid, SPF valid, DMARC valid, domain, mail provider, catch-all

## SendSure's plans (27)

- [SendSure, free, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-scoring-score/llms.txt): $0.00 per 1,000, 67% complete
- [SendSure, $5 pack, Starter 1K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/5-pack-starter-1k-credits-post-api-scoring-score/llms.txt): $1.00 per 1,000, 67% complete
- [SendSure, $19 pack, Starter 5K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/19-pack-starter-5k-credits-post-api-scoring-score/llms.txt): $0.76 per 1,000, 67% complete
- [SendSure, $30 pack, Starter 10K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/30-pack-starter-10k-credits-post-api-scoring-score/llms.txt): $0.60 per 1,000, 67% complete
- [SendSure, $60 pack, Starter 25K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/60-pack-starter-25k-credits-post-api-scoring-score/llms.txt): $0.48 per 1,000, 67% complete
- [SendSure, $109 pack, Starter 50K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/109-pack-starter-50k-credits-post-api-scoring-score/llms.txt): $0.436 per 1,000, 67% complete
- [SendSure, $207 pack, Starter 100K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/207-pack-starter-100k-credits-post-api-scoring-score/llms.txt): $0.414 per 1,000, 67% complete
- [SendSure, $427 pack, Starter 250K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/427-pack-starter-250k-credits-post-api-scoring-score/llms.txt): $0.342 per 1,000, 67% complete
- [SendSure, $549 pack, Starter 500K credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/549-pack-starter-500k-credits-post-api-scoring-score/llms.txt): $0.22 per 1,000, 67% complete
- [SendSure, $732 pack, Starter 1M credits, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/732-pack-starter-1m-credits-post-api-scoring-score/llms.txt): $0.146 per 1,000, 67% complete
- [SendSure, $17 monthly, Growth Monthly, up to 5,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/17-monthly-growth-monthly-up-to-5000-month-post-api-scoring-score/llms.txt): $0.68 per 1,000, 67% complete
- [SendSure, $27 monthly, Growth Monthly, up to 10,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/27-monthly-growth-monthly-up-to-10000-month-post-api-scoring-score/llms.txt): $0.54 per 1,000, 67% complete
- [SendSure, $54 monthly, Growth Monthly, up to 25,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/54-monthly-growth-monthly-up-to-25000-month-post-api-scoring-score/llms.txt): $0.432 per 1,000, 67% complete
- [SendSure, $98 monthly, Growth Monthly, up to 50,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/98-monthly-growth-monthly-up-to-50000-month-post-api-scoring-score/llms.txt): $0.392 per 1,000, 67% complete
- [SendSure, $186 monthly, Growth Monthly, up to 100,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/186-monthly-growth-monthly-up-to-100000-month-post-api-scoring-score/llms.txt): $0.372 per 1,000, 67% complete
- [SendSure, $384 monthly, Growth Monthly, up to 250,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/384-monthly-growth-monthly-up-to-250000-month-post-api-scoring-score/llms.txt): $0.307 per 1,000, 67% complete
- [SendSure, $494 monthly, Growth Monthly, up to 500,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/494-monthly-growth-monthly-up-to-500000-month-post-api-scoring-score/llms.txt): $0.198 per 1,000, 67% complete
- [SendSure, $659 monthly, Growth Monthly, up to 1,000,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/659-monthly-growth-monthly-up-to-1000000-month-post-api-scoring-score/llms.txt): $0.132 per 1,000, 67% complete
- [SendSure, $180 yearly, Growth Yearly, up to 5,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/180-yearly-growth-yearly-up-to-5000-month-post-api-scoring-score/llms.txt): $0.60 per 1,000, 67% complete
- [SendSure, $300 yearly, Growth Yearly, up to 10,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/300-yearly-growth-yearly-up-to-10000-month-post-api-scoring-score/llms.txt): $0.50 per 1,000, 67% complete
- [SendSure, $588 yearly, Growth Yearly, up to 25,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/588-yearly-growth-yearly-up-to-25000-month-post-api-scoring-score/llms.txt): $0.392 per 1,000, 67% complete
- [SendSure, $1,056 yearly, Growth Yearly, up to 50,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/1056-yearly-growth-yearly-up-to-50000-month-post-api-scoring-score/llms.txt): $0.352 per 1,000, 67% complete
- [SendSure, $2,004 yearly, Growth Yearly, up to 100,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/2004-yearly-growth-yearly-up-to-100000-month-post-api-scoring-score/llms.txt): $0.334 per 1,000, 67% complete
- [SendSure, $4,152 yearly, Growth Yearly, up to 250,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/4152-yearly-growth-yearly-up-to-250000-month-post-api-scoring-score/llms.txt): $0.277 per 1,000, 67% complete
- [SendSure, $5,340 yearly, Growth Yearly, up to 500,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/5340-yearly-growth-yearly-up-to-500000-month-post-api-scoring-score/llms.txt): $0.178 per 1,000, 67% complete
- [SendSure, $7,116 yearly, Growth Yearly, up to 1,000,000 / month, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/7116-yearly-growth-yearly-up-to-1000000-month-post-api-scoring-score/llms.txt): $0.119 per 1,000, 67% complete
- [SendSure, contact us, Custom, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/contact-us-custom-post-api-scoring-score/llms.txt): 67% complete

## SendSure's calls (5)

- `POST /api/scoring/batch`: [SendSure, free, POST /api/scoring/batch](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-scoring-batch/llms.txt)
- `POST /api/scoring/score`: [SendSure, free, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-scoring-score/llms.txt)
- `POST /api/jobs/{jobId}/process`: [SendSure, free, POST /api/jobs/{jobId}/process](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-jobs-jobid-process/llms.txt)
- `POST /api/verify/batch`: [SendSure, free, POST /api/verify/batch](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-verify-batch/llms.txt)
- `POST /api/verify/single`: [SendSure, free, POST /api/verify/single](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-verify-single/llms.txt)

## SendSure's APIs (1)

- [SendSure: email verification API pricing, 27 plans, POST /api/scoring/score](https://datacircle.dev/validate-email-apis/sendsure/free-post-api-scoring-score/llms.txt)

## SendSure: email verification API alternatives

- [VerifNow, free](https://datacircle.dev/validate-email-apis/verifnow/free/llms.txt): $0.00 per 1,000, 17% complete
- [CleanTalk, $58 monthly, 500,000 checks a month, 1 month, GET /, email_check_one](https://datacircle.dev/validate-email-apis/cleantalk/58-monthly-500000-checks-a-month-1-month-get-email-check-one/llms.txt): $0.116 per 1,000, 33% complete
- [Kanta, $1,430.40 yearly, Kanta Verify Volume (annual), POST /verify](https://datacircle.dev/validate-email-apis/kanta/1430-40-yearly-kanta-verify-volume-annual-post-verify/llms.txt): $0.119 per 1,000, 33% complete, live
- [Elastic Email, $1,199 monthly, Email API Starter (10,000,000 emails/month), POST /verifications/files](https://datacircle.dev/validate-email-apis/elastic-email/1199-monthly-email-api-starter-10000000-emails-month-post-verifications-files/llms.txt): $0.12 per 1,000, 50% complete, stored
- [SendBridge, $1,199 pack](https://datacircle.dev/validate-email-apis/sendbridge/1199-pack/llms.txt): $0.12 per 1,000, 50% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-03.

- https://api.sendsure.ai/api/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.sendsure.ai/api/docs/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/_next/static/chunks/33-b0mh2va2pf.js?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/docs/api-guides/api-errors-rate-limits-and-retries?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/docs/billing-and-admin/credits-and-billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://sendsure.ai/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing