Email APIs · side by side
Nitrosend vs SparkPost
Compare Nitrosend, SparkPost by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
0
Nitrosend
$0 / mo
Free · 0 emails
SparkPost
$0 / mo
Free · 0 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 | Nitrosend | SparkPost |
|---|---|---|
| Provider | Nitrosend Pty Ltd | Bird |
| Billing unit | emails | emails |
| Plan at selected usage | Free | Free |
| Monthly estimate | $0/mo | $0/mo |
| Workload | 0 emails | 0 emails |
| Free access | 8,000 starter emails up front, then 500 emails/month with unlimited contacts, 1 seat, and full MCP/API/CLI access | Trial availability varies |
| Published plans | Free, Pro, Ultra, Enterprise | Free, Startup, Growth, Enterprise |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Nitrosend
- Nitrosend Pty Ltd
- SparkPost
- Bird
Billing unit
- Nitrosend
- emails
- SparkPost
- emails
Plan at selected usage
- Nitrosend
- Free
- SparkPost
- Free
Monthly estimate
- Nitrosend
- $0/mo
- SparkPost
- $0/mo
Workload
- Nitrosend
- 0 emails
- SparkPost
- 0 emails
Free access
- Nitrosend
- 8,000 starter emails up front, then 500 emails/month with unlimited contacts, 1 seat, and full MCP/API/CLI access
- SparkPost
- Trial availability varies
Published plans
- Nitrosend
- Free, Pro, Ultra, Enterprise
- SparkPost
- Free, Startup, Growth, Enterprise
Prices checked
- Nitrosend
- 2026-10-08
- SparkPost
- 2026-10-08
Email APIs monthly cost
Nitrosend: $0SparkPost: $0
Cost by emails
Cost curve data
| emails | Nitrosend | SparkPost |
|---|---|---|
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
0
- Nitrosend
- $0
- SparkPost
- $0
Email APIs feature comparison
| Email APIs | Nitrosend | SparkPost |
|---|---|---|
| Sending domains | Not listed | 1 |
| Dedicated IP | Not listed | |
| Emails per month | 8,000 then 500/mo | Not listed |
| AI actions | 20 | Not listed |
| Extra emails | Not listed | |
| Extra AI actions | Not listed | |
| Contacts | Free & Unlimited | Not listed |
| Brands | 3 | Not listed |
| Domains | 1 | Not listed |
| Recipients / rolling 24h — Probation | 100 | Not listed |
| Recipients / rolling 24h — Standard | 500 | Not listed |
| Recipients / rolling 24h — Trusted | 5,000 | Not listed |
| Included email validation | None | Not listed |
| Seats | 1 | Not listed |
| Nitrosend branding | Shown | Not listed |
| Frontier AI models | Not listed | |
| BYO sending keys | Not listed | |
| BYO AI keys | Not listed | |
| MCP access | Not listed | |
| REST API + SDK | Not listed | |
| CLI access | Not listed | |
| AI copywriting | Not listed | |
| NitroWheel LLM | Not listed | |
| Campaigns & flows | Not listed | |
| SSO / SAML | Not listed | |
| Priority support | Not listed | |
| 99.9% SLA | Not listed | |
| Emails / month | Not listed | 1,000 |
| Webhook endpoints | Not listed | 1 |
| Sending IP | Not listed | Shared |
Sending domains
- Nitrosend
- Not listed
- SparkPost
- 1
Dedicated IP
- Nitrosend
- SparkPost
- Not listed
Emails per month
- Nitrosend
- 8,000 then 500/mo
- SparkPost
- Not listed
AI actions
- Nitrosend
- 20
- SparkPost
- Not listed
Extra emails
- Nitrosend
- SparkPost
- Not listed
Extra AI actions
- Nitrosend
- SparkPost
- Not listed
Contacts
- Nitrosend
- Free & Unlimited
- SparkPost
- Not listed
Brands
- Nitrosend
- 3
- SparkPost
- Not listed
Domains
- Nitrosend
- 1
- SparkPost
- Not listed
Recipients / rolling 24h — Probation
- Nitrosend
- 100
- SparkPost
- Not listed
Recipients / rolling 24h — Standard
- Nitrosend
- 500
- SparkPost
- Not listed
Recipients / rolling 24h — Trusted
- Nitrosend
- 5,000
- SparkPost
- Not listed
Included email validation
- Nitrosend
- None
- SparkPost
- Not listed
Seats
- Nitrosend
- 1
- SparkPost
- Not listed
Nitrosend branding
- Nitrosend
- Shown
- SparkPost
- Not listed
Frontier AI models
- Nitrosend
- SparkPost
- Not listed
BYO sending keys
- Nitrosend
- SparkPost
- Not listed
BYO AI keys
- Nitrosend
- SparkPost
- Not listed
MCP access
- Nitrosend
- SparkPost
- Not listed
REST API + SDK
- Nitrosend
- SparkPost
- Not listed
CLI access
- Nitrosend
- SparkPost
- Not listed
AI copywriting
- Nitrosend
- SparkPost
- Not listed
NitroWheel LLM
- Nitrosend
- SparkPost
- Not listed
Campaigns & flows
- Nitrosend
- SparkPost
- Not listed
SSO / SAML
- Nitrosend
- SparkPost
- Not listed
Priority support
- Nitrosend
- SparkPost
- Not listed
99.9% SLA
- Nitrosend
- SparkPost
- Not listed
Emails / month
- Nitrosend
- Not listed
- SparkPost
- 1,000
Webhook endpoints
- Nitrosend
- Not listed
- SparkPost
- 1
Sending IP
- Nitrosend
- Not listed
- SparkPost
- Shared
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Which email providers fit your needs?
Nitrosend features & plan notes
- Native support for AI agents via Model Context Protocol (MCP), REST API, and CLI
- Unified sending for newsletters, transactional emails, and automated lifecycle flows
- Unlimited contacts included on all plans with pricing based solely on send volume
- Automated brand kit formatting and AI copywriting powered by NitroWheel LLM
- Support for bringing your own sending infrastructure (e.g., SES, Mailgun) and AI API keys
- Emails 8,000 then 500/mo
- Email types Transactional & Marketing
- AI actions 20/mo
- Contacts Free & Unlimited
- Brands 3
- MCP/API/CLI Included
- Seats 1
- Recipients / rolling 24h 100–5,000
- Email validation Prepaid only
SparkPost features & plan notes
- Deliverability analytics
- Enterprise scale
- Predictive signals
- No credit card
- 50/day cap
- 1 webhook endpoint
- 1 sending domain
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