Prelude Transactional SMS API
The facts below are what the maker publishes about Prelude Transactional SMS API, checked and dated. Our editors have not written about it yet.
Plans and prices
From Prelude Transactional SMS API's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Pay as you go | €0.05, paid once | Country- and volume-based pricing · No hidden fees or subscriptions · Per verification; SMS message costs are additional and vary by country. |
The facts
Each one read from Prelude Transactional SMS API's own pages, with the date it was checked.
What it does
- API
- The API uses REST and supports single or bulk message sending through POST requests.checked 4 Oct 2026
- Certifications
- Prelude’s Trust Center lists ISO 27001:2022 and SOC 2 Type 1 and Type 2 reports.checked 4 Oct 2026
- Integration resources
- Prelude offers technical documentation, code samples, sandbox testing, dashboard test numbers, and free credits for real message testing.checked 4 Oct 2026
- Message handling
- The API automatically manages language and encoding and supports dynamic fields such as name, language, and time zone.checked 4 Oct 2026
- Monitoring
- The service provides delivery receipts, real-time message status, analytics, cost monitoring, and detailed API logs.checked 4 Oct 2026
- Performance
- Prelude advertises average delivery under three seconds, a delivery rate above 98%, and a 99.95% uptime SLA.checked 4 Oct 2026
- Pricing model
- Pricing depends on destination country and sending volume, with no setup fees or minimum commitment stated on the product page.checked 4 Oct 2026
- Privacy and compliance
- Prelude says its infrastructure complies with GDPR and U.S. privacy standards and that only essential data is stored for delivery tracking.checked 4 Oct 2026
- Routing
- Prelude says it routes messages by region and carrier and supports delivery to over 230 countries.checked 4 Oct 2026
- Security
- Prelude states that communications use HTTPS/TLS encryption and token-based API authentication, with hosting in U.S. and EU data centers.checked 4 Oct 2026
- Support
- Prelude offers human support via chat, email, and a dedicated Slack channel for integration, deliverability, webhook, and troubleshooting help.checked 4 Oct 2026
- What it does
- Prelude’s Transactional SMS API sends automated service messages such as OTPs, order confirmations, payment notifications, and reminders.checked 4 Oct 2026
The company
- Founded
- 2022checked 28 Sep 2026
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