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La meilleure alternative à Twilio Verify

Prelude et Twilio offrent tous deux des API de vérification de téléphone, mais Prelude fournit une protection contre le pompage SMS, une délivrabilité de 99%, le tout à une fraction du prix de Twilio.

Testez gratuitement

Testez gratuitement

Parlons

Parlons

What is an SMS API ?

A SMS API (Application Programming Interface) is a programming interface that allows your applications, websites, or CRM systems to send and receive text messages automatically.

Through a simple integration, you can automate all your communications, including :

Notifications

Notifications

Notifications

Alerts

Alerts

Alerts

Authentications codes

Authentications codes

Authentications codes

Marketing campaigns

Marketing campaigns

Marketing campaigns

The Prelude SMS API transforms how businesses communicate: fast, automated, and reliable.

The Prelude SMS API transforms how businesses communicate: fast, automated, and reliable.

The Prelude SMS API transforms how businesses communicate: fast, automated, and reliable.

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Scale to 230+ countries without extra integrations.

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Send SMS messages directly through your API platform.

Send SMS messages directly through your API platform.

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Track message deliveries and receipts (DLRs) in real time.

+ 33 624606164

Android

10s ago

+ 206 342-8631

iOS

20s ago

+ 34 634701125

Android

5min ago

+ 39 614820364

iOS

7min ago

Why use an SMS API for your messaging?

Why use an SMS API for your messaging?

By centralizing your communication through a single, professional SMS gateway, you gain efficiency, accuracy, and reliability.

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Automatic notifications

Order confirmations, delivery updates, alerts.

Time to show your friends your next fun picture !

now

Locket

You’ve got a new match waiting for you, go say hi!

now

Fruitz

Your favourite items are back in stock. Don’t miss them again!

now

Choose

It’s time to BeReal! Tap to capture a photo.

now

BeReal

Your ticket is ready! Find it in the app before the event.

now

Shotgun

Time to show your friends your next fun picture !

now

Locket

You’ve got a new match waiting for you, go say hi!

now

Fruitz

Your favourite items are back in stock. Don’t miss them again!

now

Choose

It’s time to BeReal! Tap to capture a photo.

now

BeReal

Your ticket is ready! Find it in the app before the event.

now

Shotgun

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Secure

authentication

Secure authentication

Secure authentication

(OTP / 2FA): identity verification and login validation.

now

YourApp

5678 is your verification code for YourApp, click on it while it’s time !

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

Marketing SMS campaigns:

Personalized promotional and loyalty messages.

now

Getaround

Thanks for riding with us! Your trip has ended successfully.

1 hour ago

Getaround

Vehicle unlocked. Have a safe trip!

3 hours ago

Getaround

Your trip is booked! Your car will be ready for pickup at 3:00 PM.

Vos résultats avant tout

Vos résultats avant tout

Vos résultats avant tout

How does the Prelude SMS API work?

How does the Prelude SMS API work?

It’s built on a secure and scalable cloud infrastructure designed to handle high volumes of traffic while maintaining excellent deliverability rates.

Parlons

Parlons

Parlons

Easy to set up

curl https://api.prelude.dev/v2/verification \
-H 'Authorization: Bearer <TOKEN>' \
-H 'Content-Type: application/json' \
-d '{"target":{"type":"phone_number","value":"+33612345678"}}'

Compatible with PHP, Python, Java, Node.js and Go

Features

Prelude provides all the tools you need for professional, large-scale, and automated communication.

Unified SMS API

Send and receive SMS through a unified API platform.

Unified SMS API

Send and receive SMS through a unified API platform.

Unified SMS API

Send and receive SMS through a unified API platform.

Live Delivery Reports

Real-time delivery tracking, DLR reporting, and live spend monitoring.

Live Delivery Reports

Real-time delivery tracking, DLR reporting, and live spend monitoring.

Live Delivery Reports

Real-time delivery tracking, DLR reporting, and live spend monitoring.

Smart Campaign Management

Manage campaigns, and message templates.

Smart Campaign Management

Manage campaigns, and message templates.

Smart Campaign Management

Manage campaigns, and message templates.

Advanced API Security

Secure authentication: API keys, token-based access, GDPR compliance.

Advanced API Security

Secure authentication: API keys, token-based access, GDPR compliance.

Advanced API Security

Secure authentication: API keys, token-based access, GDPR compliance.

Cloud-Powered Performance

Reliable cloud infrastructure for uninterrupted service.

Cloud-Powered Performance

Reliable cloud infrastructure for uninterrupted service.

Cloud-Powered Performance

Reliable cloud infrastructure for uninterrupted service.

The advantages of choosing Prelude as your SMS gateway

The advantages of choosing Prelude as your SMS gateway

Prelude is a reliable, European-hosted SMS solution designed for businesses that demand performance, security, and simplicity.

Multi-Canaux

Multi-Canaux

Multi-Canaux

High performance: 98%+ deliverability via direct operator routes.

+33612345678

1

2

3

4

0.028€

price

0.034€

price

0.048€

price

0.029€

price

convertion

86%

convertion

88%

Undelivered

Converted

Multi-Canaux

Multi-Canaux

Multi-Canaux

Clear documentation and SDKs for rapid integration.

API

SDKs

Multi-Canaux

Multi-Canaux

Multi-Canaux

Intuitive dashboard for campaign, message tracking and monitor spending.

1%

Conversion Rate

88%

iOS

92%

Android

Multi-Canaux

Multi-Canaux

Multi-Canaux

Unlimited scalability: REST API and HTTPS protocols supported.

Multi-Canaux

Multi-Canaux

Multi-Canaux

Expert local support to assist your technical integration.

Des tarifs adaptés à votre croissance.

Des tarifs adaptés à votre croissance.

Des tarifs adaptés à votre croissance.

Personnalisez vos messages à l'échelle

Créez des messages multilingues avec notre créateur de modèles, qui les enregistre automatiquement auprès des autorités locales. Finie la paperasse : personnalisez vos messages pour refléter votre marque et répondre aux besoins de vos utilisateurs.

1 API pour plus de 230 pays et 1000 routes

Envoyez des messages vers de nouveaux pays et canaux, sans installations techniques supplémentaires. Créez, déployez et suivez les performances de vos templates à l'échelle mondiale.

1 API pour plus de 230 pays et 1000 routes

Envoyez des messages vers de nouveaux pays et canaux, sans installations techniques supplémentaires. Créez, déployez et suivez les performances de vos templates à l'échelle mondiale.

Personnalisez vos messages à l'échelle

Créez des messages multilingues avec notre créateur de modèles, qui les enregistre automatiquement auprès des autorités locales. Finie la paperasse : personnalisez vos messages pour refléter votre marque et répondre aux besoins de vos utilisateurs.

Recevez nos tarifs globaux

Prelude opère dans 230 destinations dans le monde entier, offrant les meilleurs tarifs sur tous les canaux. Obtenez notre liste de prix complète directement dans votre boîte de réception

Mobile SDKs

Accédez à des analyses pour suivre vos conversions. Repérez les points de friction dans le parcours utilisateur, suivez les taux de conversion par pays et surveillez vos KPIs pour optimiser votre stratégie.

What types of SMS can I send with the Prelude API?

With Prelude’s SMS API, you can send transactional messages, OTP verifications, notifications, and marketing campaigns directly from your applications.

Messages are routed through direct operator connections, ensuring secure, fast, and reliable delivery.

Typical examples include:

  • Order confirmations and delivery notifications.

  • 2FA codes and password resets.

  • Appointment reminders and service alerts.

  • Personalized marketing campaigns and promotional offers.

Prelude’s business-grade API enables instant, high-quality communication with your customers at scale.

What types of SMS can I send with the Prelude API?

With Prelude’s SMS API, you can send transactional messages, OTP verifications, notifications, and marketing campaigns directly from your applications.

Messages are routed through direct operator connections, ensuring secure, fast, and reliable delivery.

Typical examples include:

  • Order confirmations and delivery notifications.

  • 2FA codes and password resets.

  • Appointment reminders and service alerts.

  • Personalized marketing campaigns and promotional offers.

Prelude’s business-grade API enables instant, high-quality communication with your customers at scale.

What types of SMS can I send with the Prelude API?

With Prelude’s SMS API, you can send transactional messages, OTP verifications, notifications, and marketing campaigns directly from your applications.

Messages are routed through direct operator connections, ensuring secure, fast, and reliable delivery.

Typical examples include:

  • Order confirmations and delivery notifications.

  • 2FA codes and password resets.

  • Appointment reminders and service alerts.

  • Personalized marketing campaigns and promotional offers.

Prelude’s business-grade API enables instant, high-quality communication with your customers at scale.

Is the Prelude SMS API compatible with my system?

Yes. Prelude is fully compatible with all major systems — CRM, ERP, SaaS, and e-commerce platforms.

Based on REST/JSON, the API integrates easily with a simple HTTPS request and is designed to work seamlessly with most programming environments.

Prelude also provides:

  • SDKs and code libraries for Java, Python, Ruby, and Node.js.

  • Dashboard test numbers and free credits for real message testing.

  • Real people, fast response available via Slack

This makes Prelude’s API both developer-friendly and accessible to any business.

Is the Prelude SMS API compatible with my system?

Yes. Prelude is fully compatible with all major systems — CRM, ERP, SaaS, and e-commerce platforms.

Based on REST/JSON, the API integrates easily with a simple HTTPS request and is designed to work seamlessly with most programming environments.

Prelude also provides:

  • SDKs and code libraries for Java, Python, Ruby, and Node.js.

  • Dashboard test numbers and free credits for real message testing.

  • Real people, fast response available via Slack

This makes Prelude’s API both developer-friendly and accessible to any business.

Is the Prelude SMS API compatible with my system?

Yes. Prelude is fully compatible with all major systems — CRM, ERP, SaaS, and e-commerce platforms.

Based on REST/JSON, the API integrates easily with a simple HTTPS request and is designed to work seamlessly with most programming environments.

Prelude also provides:

  • SDKs and code libraries for Java, Python, Ruby, and Node.js.

  • Dashboard test numbers and free credits for real message testing.

  • Real people, fast response available via Slack

This makes Prelude’s API both developer-friendly and accessible to any business.

How can I track the delivery status of my SMS?

Every message sent via Prelude includes a real-time delivery receipt (DLR).

You can monitor and analyze all message statuses directly from your Prelude dashboard or via API webhooks.

Available tracking data includes:

  • Delivery status (sent, delivered, failed).

  • Timestamp and message ID.

  • Routing information and response time.

You can also export these logs to measure your delivery performance and campaign efficiency over time.

How can I track the delivery status of my SMS?

Every message sent via Prelude includes a real-time delivery receipt (DLR).

You can monitor and analyze all message statuses directly from your Prelude dashboard or via API webhooks.

Available tracking data includes:

  • Delivery status (sent, delivered, failed).

  • Timestamp and message ID.

  • Routing information and response time.

You can also export these logs to measure your delivery performance and campaign efficiency over time.

How can I track the delivery status of my SMS?

Every message sent via Prelude includes a real-time delivery receipt (DLR).

You can monitor and analyze all message statuses directly from your Prelude dashboard or via API webhooks.

Available tracking data includes:

  • Delivery status (sent, delivered, failed).

  • Timestamp and message ID.

  • Routing information and response time.

You can also export these logs to measure your delivery performance and campaign efficiency over time.

Is the Prelude SMS API secure and GDPR compliant?

Yes. Prelude is a European-hosted platform fully compliant with GDPR and SOC 2 Type II certification.

Security is a core priority of our infrastructure:

  • HTTPS/TLS encrypted connections for all communications.

  • Token-based API authentication and key rotation.

  • Data hosting within European data centers.

Prelude guarantees that all user data remains secure, private, and processed in Europe, ensuring full compliance with EU privacy laws.

Is the Prelude SMS API secure and GDPR compliant?

Yes. Prelude is a European-hosted platform fully compliant with GDPR and SOC 2 Type II certification.

Security is a core priority of our infrastructure:

  • HTTPS/TLS encrypted connections for all communications.

  • Token-based API authentication and key rotation.

  • Data hosting within European data centers.

Prelude guarantees that all user data remains secure, private, and processed in Europe, ensuring full compliance with EU privacy laws.

Is the Prelude SMS API secure and GDPR compliant?

Yes. Prelude is a European-hosted platform fully compliant with GDPR and SOC 2 Type II certification.

Security is a core priority of our infrastructure:

  • HTTPS/TLS encrypted connections for all communications.

  • Token-based API authentication and key rotation.

  • Data hosting within European data centers.

Prelude guarantees that all user data remains secure, private, and processed in Europe, ensuring full compliance with EU privacy laws.

How is the SMS API pricing structured?

Pay-As-You-Go (default)

Best for: teams who want to launch quickly, stay flexible, and pay only for real usage.

How it works:

  • Each SMS is charged at the public carrier price.

    This price doesn’t change with volume and Prelude doesn’t take margin on it.

  • Prelude charges a service license fee per message sent.

    This is the API/service fee for using the platform.

  • You get a real-time billing dashboard to track usage and export invoices anytime.

  • No subscription, no commitment, no platform fee — just usage.

In short: you pay the public SMS cost plus a Prelude service license fee per SMS, with zero lock-in.

License Plan (post-paid + discounted)

Best for: companies with consistent or high volumes that want lower unit costs and monthly invoicing.

How it works:

  • You move from pre-paid credits to post-paid billing with monthly invoices.

  • You unlock:

    • Discounted per-SMS API fees (lower unit pricing),

    • Custom volume tiers aligned with your expected usage,

    • Optional upgrades like tailored routing, SLA, or dedicated support (when relevant).

  • You keep the same transparent dashboard, just with better economics at scale.

In short: the same usage-based logic, but cheaper per SMS and billed monthly once you scale.

How is the SMS API pricing structured?

Pay-As-You-Go (default)

Best for: teams who want to launch quickly, stay flexible, and pay only for real usage.

How it works:

  • Each SMS is charged at the public carrier price.

    This price doesn’t change with volume and Prelude doesn’t take margin on it.

  • Prelude charges a service license fee per message sent.

    This is the API/service fee for using the platform.

  • You get a real-time billing dashboard to track usage and export invoices anytime.

  • No subscription, no commitment, no platform fee — just usage.

In short: you pay the public SMS cost plus a Prelude service license fee per SMS, with zero lock-in.

License Plan (post-paid + discounted)

Best for: companies with consistent or high volumes that want lower unit costs and monthly invoicing.

How it works:

  • You move from pre-paid credits to post-paid billing with monthly invoices.

  • You unlock:

    • Discounted per-SMS API fees (lower unit pricing),

    • Custom volume tiers aligned with your expected usage,

    • Optional upgrades like tailored routing, SLA, or dedicated support (when relevant).

  • You keep the same transparent dashboard, just with better economics at scale.

In short: the same usage-based logic, but cheaper per SMS and billed monthly once you scale.

How is the SMS API pricing structured?

Pay-As-You-Go (default)

Best for: teams who want to launch quickly, stay flexible, and pay only for real usage.

How it works:

  • Each SMS is charged at the public carrier price.

    This price doesn’t change with volume and Prelude doesn’t take margin on it.

  • Prelude charges a service license fee per message sent.

    This is the API/service fee for using the platform.

  • You get a real-time billing dashboard to track usage and export invoices anytime.

  • No subscription, no commitment, no platform fee — just usage.

In short: you pay the public SMS cost plus a Prelude service license fee per SMS, with zero lock-in.

License Plan (post-paid + discounted)

Best for: companies with consistent or high volumes that want lower unit costs and monthly invoicing.

How it works:

  • You move from pre-paid credits to post-paid billing with monthly invoices.

  • You unlock:

    • Discounted per-SMS API fees (lower unit pricing),

    • Custom volume tiers aligned with your expected usage,

    • Optional upgrades like tailored routing, SLA, or dedicated support (when relevant).

  • You keep the same transparent dashboard, just with better economics at scale.

In short: the same usage-based logic, but cheaper per SMS and billed monthly once you scale.

How fast are SMS deliveries through Prelude’s API?

Prelude’s infrastructure is optimized for real-time messaging, with average delivery times under three seconds per SMS.

Thanks to direct operator routing and redundant servers, Prelude clients average >98% deliverability, even during high-traffic periods.

This makes it ideal for critical messages like OTPs, alerts, or system notifications that demand instant delivery.

How fast are SMS deliveries through Prelude’s API?

Prelude’s infrastructure is optimized for real-time messaging, with average delivery times under three seconds per SMS.

Thanks to direct operator routing and redundant servers, Prelude clients average >98% deliverability, even during high-traffic periods.

This makes it ideal for critical messages like OTPs, alerts, or system notifications that demand instant delivery.

How fast are SMS deliveries through Prelude’s API?

Prelude’s infrastructure is optimized for real-time messaging, with average delivery times under three seconds per SMS.

Thanks to direct operator routing and redundant servers, Prelude clients average >98% deliverability, even during high-traffic periods.

This makes it ideal for critical messages like OTPs, alerts, or system notifications that demand instant delivery.

What makes Prelude different from other SMS API providers?

Prelude stands out as a European-hosted, GDPR-compliant SMS gateway built for reliability and transparency.

Key differentiators:

  • Infrastructure located in France and the EU.

  • Built-in anti-fraud protection with a 4-layer AI-powered system that filters abuse and ensures only legitimate users can receive OTPs and log in.

  • Transparent, usage-based pricing with no hidden costs.

  • Simple REST API and clear SDKs for fast deployment.

  • Real people support, fast response available via Slack.

Prelude combines enterprise-grade technology with a human-centric approach, ensuring both performance and peace of mind.

What makes Prelude different from other SMS API providers?

Prelude stands out as a European-hosted, GDPR-compliant SMS gateway built for reliability and transparency.

Key differentiators:

  • Infrastructure located in France and the EU.

  • Built-in anti-fraud protection with a 4-layer AI-powered system that filters abuse and ensures only legitimate users can receive OTPs and log in.

  • Transparent, usage-based pricing with no hidden costs.

  • Simple REST API and clear SDKs for fast deployment.

  • Real people support, fast response available via Slack.

Prelude combines enterprise-grade technology with a human-centric approach, ensuring both performance and peace of mind.

What makes Prelude different from other SMS API providers?

Prelude stands out as a European-hosted, GDPR-compliant SMS gateway built for reliability and transparency.

Key differentiators:

  • Infrastructure located in France and the EU.

  • Built-in anti-fraud protection with a 4-layer AI-powered system that filters abuse and ensures only legitimate users can receive OTPs and log in.

  • Transparent, usage-based pricing with no hidden costs.

  • Simple REST API and clear SDKs for fast deployment.

  • Real people support, fast response available via Slack.

Prelude combines enterprise-grade technology with a human-centric approach, ensuring both performance and peace of mind.

How can I get technical support or integration help?

Our expert support team is available to assist you at every step — from setup to optimization.

We help you:

  • Integrate the API and configure authentication.

  • Run Proof of Concept and troubleshoot errors.

  • Optimize your deliverability and analyze campaign data.

You can reach us directly from the Prelude dashboard, by email, or through Slack dedicated channel.

Comprehensive API documentation and developer guides are also available online.

How can I get technical support or integration help?

Our expert support team is available to assist you at every step — from setup to optimization.

We help you:

  • Integrate the API and configure authentication.

  • Run Proof of Concept and troubleshoot errors.

  • Optimize your deliverability and analyze campaign data.

You can reach us directly from the Prelude dashboard, by email, or through Slack dedicated channel.

Comprehensive API documentation and developer guides are also available online.

How can I get technical support or integration help?

Our expert support team is available to assist you at every step — from setup to optimization.

We help you:

  • Integrate the API and configure authentication.

  • Run Proof of Concept and troubleshoot errors.

  • Optimize your deliverability and analyze campaign data.

You can reach us directly from the Prelude dashboard, by email, or through Slack dedicated channel.

Comprehensive API documentation and developer guides are also available online.

Des tarifs adaptés à votre croissance.

Accédez à des analyses pour suivre vos conversions. Repérez les points de friction dans le parcours utilisateur, suivez les taux de conversion par pays et surveillez vos KPIs pour optimiser votre stratégie.

Testez gratuitement

Testez gratuitement

Testez gratuitement

Parlons

Parlons

Parlons

Solutions

Verify API

Transactional API

Watch API

Tarifs

Prix Japon

Prix US

Prix FR

Prix UK

Prix Brésil

À Propos

Blog

Cas Clients

Carrières

Ressources

Documentation

Tarifs

Alternatives à Twilio

Meilleurs OTP providers

Meilleurs SMS API

Réseaux Sociaux

Copyright ©️ 2025

Politique de confidentialité

Conditions Générales

Conditions Générales

Solutions

Verify API

Transactional API

Watch API

Tarifs

Prix US

Prix FR

Prix UK

À Propos

Blog

Cas Clients

Carrières

Ressources

Documentation

Tarifs

Alternatives à Twilio

Meilleurs OTP providers

Meilleurs SMS API

Réseaux Sociaux

Copyright ©️ 2025

Politique de confidentialité

Conditions Générales

Conditions Générales

Solutions

Verify API

Transactional API

Watch API

Tarifs

Prix Japon

Prix US

Prix FR

Prix UK

Prix Brésil

À Propos

Blog

Cas Clients

Carrières

Ressources

Documentation

Tarifs

Alternatives à Twilio

Meilleurs OTP providers

Meilleurs SMS API

Réseaux Sociaux

Copyright ©️ 2025

Politique de confidentialité

Conditions Générales

Conditions Générales