Email APIs · side by side
SparkPost vs ZeptoMail
Compare SparkPost, ZeptoMail by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
100K
SparkPost
$80 / mo
Growth · 100K emails
ZeptoMail
Custom / not listed
No priced plan for this volume · 100K emails
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | SparkPost | ZeptoMail |
|---|---|---|
| Provider | Bird | Zoho Corporation |
| Billing unit | emails | emails |
| Plan at selected usage | Growth | No priced plan for this volume |
| Monthly estimate | $80/mo | Custom / not listed |
| Workload | 100K emails | 100K emails |
| Free access | Trial availability varies | 10,000 free email credits on account signup, valid for 6 months |
| Published plans | Free, Startup, Growth, Enterprise | Pay As You Go, Custom Pricing |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- SparkPost
- Bird
- ZeptoMail
- Zoho Corporation
Billing unit
- SparkPost
- emails
- ZeptoMail
- emails
Plan at selected usage
- SparkPost
- Growth
- ZeptoMail
- No priced plan for this volume
Monthly estimate
- SparkPost
- $80/mo
- ZeptoMail
- Custom / not listed
Workload
- SparkPost
- 100K emails
- ZeptoMail
- 100K emails
Free access
- SparkPost
- Trial availability varies
- ZeptoMail
- 10,000 free email credits on account signup, valid for 6 months
Published plans
- SparkPost
- Free, Startup, Growth, Enterprise
- ZeptoMail
- Pay As You Go, Custom Pricing
Prices checked
- SparkPost
- 2026-10-08
- ZeptoMail
- 2026-10-08
Email APIs monthly cost
SparkPost: $80ZeptoMail: Not priced
Cost by emails
Cost curve data
| emails | SparkPost | ZeptoMail |
|---|---|---|
| 0 | $0 | $0 |
| 25K | $15 | Not priced |
| 50K | $15 | Not priced |
| 100K | $80 | Not priced |
| 200K | Not priced | Not priced |
| 500K | Not priced | Not priced |
| 1M | Not priced | Not priced |
0
- SparkPost
- $0
- ZeptoMail
- $0
25K
- SparkPost
- $15
- ZeptoMail
- Not priced
50K
- SparkPost
- $15
- ZeptoMail
- Not priced
100K
- SparkPost
- $80
- ZeptoMail
- Not priced
200K
- SparkPost
- Not priced
- ZeptoMail
- Not priced
500K
- SparkPost
- Not priced
- ZeptoMail
- Not priced
1M
- SparkPost
- Not priced
- ZeptoMail
- Not priced
Email APIs feature comparison
| Email APIs | SparkPost | ZeptoMail |
|---|---|---|
| Sending domains | 1,000 | Not listed |
| Emails / month | 100K to 2.5M | Not listed |
| Webhook endpoints | 10 | Not listed |
| Sending IP | Dedicated IPs (add-on) | Not listed |
Sending domains
- SparkPost
- 1,000
- ZeptoMail
- Not listed
Emails / month
- SparkPost
- 100K to 2.5M
- ZeptoMail
- Not listed
Webhook endpoints
- SparkPost
- 10
- ZeptoMail
- Not listed
Sending IP
- SparkPost
- Dedicated IPs (add-on)
- ZeptoMail
- Not listed
Which email providers fit your needs?
SparkPost features & plan notes
- Deliverability analytics
- Enterprise scale
- Predictive signals
- 10 webhook endpoints
- 1,000 sending domains
- Dedicated IPs (add-on)
ZeptoMail features & plan notes
- Exclusively transactional email sending to protect domain and IP reputation
- Credit-based pay-as-you-go pricing with no monthly subscription lock-in (credits valid for 6 months)
- Integration via RESTful APIs and SMTP relay with SDK support for multiple languages
- Comprehensive email logs, suppression list management, and delivery analytics
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricing