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MessageFlow SMS API
What MessageFlow SMS API is
MessageFlow SMS API is part of a cross-channel business communication platform for SMS campaigns, transactional notifications, and business-critical messages. Campaign tools support branded sender names, replies, personalization, dynamic audience segments, and performance measurement. Teams can monitor Pending, Sent, and Error statuses in real time and track clicks on links. MessageFlow states that it sends 6M SMS messages per hour, with delivery time under 3.5 seconds, and can support campaigns for tens of thousands to tens of millions of recipients. Shield 360 analyzes message content and embedded links in real time for phishing, smishing, and other abuse. Consent controls include automated opt-out handling and a configurable unsubscribe page. The service is available via web and API, with webhooks, delivery status, and two-way messaging. Listed SMS API integrations include ManagoAI, Microsoft Azure Marketplace, Salesforce Marketing Cloud, and Synerise. MessageFlow says customer data is processed and stored exclusively within the EEA and encrypted in transit. The 30-day trial includes 100 SMS, 100 emails, and up to 100 contacts; trial SMS are set up for Polish numbers by default.
Who it suits
MessageFlow may suit businesses sending transactional or campaign SMS alongside other channels. Its API, delivery-status tools, and compliance controls are relevant to teams managing message workflows programmatically or through the web platform.
What it does well
- Real-time Pending, Sent, and Error statuses
- Automated opt-out handling
- Two-way messaging and webhooks
- Default two-factor authentication and IP-based access controls
- 30-day trial includes SMS, email, and contacts
What to know first
- Trial SMS default to Polish phone numbers
- Starter plan does not include SMS
- Included SMS pools cover selected destinations and one chosen country
- Additional SMS have individual pricing
Limits
The 30-day trial allows 100 SMS, 100 emails, and up to 100 contacts, with trial SMS configured for Polish phone numbers by default. Starter includes no SMS; Grow, Advanced, and Prime restrict included SMS pools to selected destinations and one chosen country, with additional SMS priced individually.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Advanced | 199 / mth; 159 EUR / mth for the first six months for new users · Up to 50 000 contacts · No limit on marketing emails · 50,000 API-triggered emails · 5,000 SMS | On request |
| Mix and Match | Minimum subscription is 465 EUR per month · Custom combination of SMS, RCS, email, and mobile push · Minimum subscription fully available for message sends | On request |
| Starter | 89 / mth; 69 EUR / mth for the first six months for new users · Up to 10 000 contacts · 20,000 marketing emails · 10,000 API-triggered emails · SMS not included | On request |
| Prime | 369 / mth; 299 EUR / mth for the first six months for new users · Up to 100 000 contacts · No limit on marketing emails · 150,000 API-triggered emails · 10,000 SMS | On request |
| Grow | 159 / mth; 109 EUR / mth for the first six months for new users · Up to 20 000 contacts · 100,000 marketing emails · 20,000 API-triggered emails · 1,000 SMS | On request |
| Enterprise | Get a quote · Unlimited contacts · Unlimited users · Custom onboarding · Priority and dedicated support option · SLA | On request |
As messageflow.com lists them, read 7 Oct 2026. The maker's own page has the final word.
Getting started
- Open the MessageFlow website
- Choose the web platform or SMS API
- Start the 30-day trial
- Use the trial allowance of 100 SMS, 100 emails, and up to 100 contacts
- Connect a listed integration or configure webhooks
- Select a plan such as Starter, Grow, Advanced, Prime, Mix and Match, or Enterprise
Verdict
MessageFlow combines SMS campaign and API capabilities with delivery monitoring, abuse protection, and consent controls. Review destination restrictions and additional-message pricing when estimating a campaign’s needs.
Questions
Is there a free plan?
Yes. MessageFlow lists a free plan and a 30-day trial.
What does the trial include?
The trial includes 100 SMS, 100 emails, and up to 100 contacts. Trial SMS are configured for Polish phone numbers by default.
Which platforms are supported?
MessageFlow is available on the web and through an API.
Does it support two-way messaging?
Yes. The SMS API provides two-way messaging, delivery status, and webhooks.
What integrations are listed?
The catalog lists ManagoAI, Microsoft Azure Marketplace, Salesforce Marketing Cloud, and Synerise SMS API integrations.
What are the listed plan charges?
Starter is billed 89 / mth, or 69 EUR / mth for the first six months for new users. Grow is billed 159 / mth, or 109 EUR / mth for the first six months; Advanced 199 / mth, or 159 EUR / mth for the first six months; Prime 369 / mth, or 299 EUR / mth for the first six months. Mix and Match has a minimum subscription of 465 EUR per month, while Enterprise says get a quote.
Facts from MessageFlow SMS API's own pages
- Abuse protection
- Shield 360 analyzes message content and embedded links in real time to detect phishing, smishing, and other abuse. · messageflow.com, 7 Oct 2026
- Access controls
- The platform provides two-factor authentication by default, IP-based access controls, roles and permissions, and activity logs. · messageflow.com, 7 Oct 2026
- Compliance
- The security page lists ISO 27001:2022, ISO 22301:2019, and ISO 27018:2019 certifications and describes NIS2 and DORA compliance. · messageflow.com, 7 Oct 2026
- Consent controls
- SMS compliance features include automated opt-out handling and a configurable unsubscribe page. · messageflow.com, 7 Oct 2026
- Headquarters
- Poznań, Poland · messageflow.com, 28 Sept 2026
- Integrations
- The integration catalog lists SMS API integrations for ManagoAI, Microsoft Azure Marketplace, Salesforce Marketing Cloud, and Synerise. · messageflow.com, 7 Oct 2026
- Monitoring
- SMS performance tools show Pending, Sent, and Error statuses in real time and monitor clicks on tracked links. · messageflow.com, 7 Oct 2026
- Notable limits
- For the Grow, Advanced, and Prime plans, included SMS pools apply only to selected destinations and one chosen country, and additional SMS are subject to individual pricing. · messageflow.com, 7 Oct 2026
- Product
- MessageFlow offers a platform for cross-channel business communication, including SMS campaigns, transactional notifications, and business-critical messages. · messageflow.com, 7 Oct 2026
- Scale
- The SMS page says MessageFlow can support campaigns reaching tens of thousands to tens of millions of recipients. · messageflow.com, 7 Oct 2026
- Security
- MessageFlow says customer data is processed and stored exclusively within the EEA and encrypted in transit. · messageflow.com, 7 Oct 2026
- SMS features
- SMS campaign tools include branded sender names, replies, personalization, dynamic audience segments, and campaign performance measurement. · messageflow.com, 7 Oct 2026
- Support
- The homepage describes 24/7 support with a premium SLA, a dedicated Customer Success Specialist, consultations, and audits. · messageflow.com, 7 Oct 2026
- Throughput
- The SMS page states that the service sends 6M SMS messages per hour and lists an SMS delivery time of < 3.5 s. · messageflow.com, 7 Oct 2026
- Trial limits
- The 30-day trial includes 100 SMS, 100 emails, and up to 100 contacts; trial SMS are configured for Polish phone numbers by default. · messageflow.com, 7 Oct 2026
Where MessageFlow SMS API stands on Freedom251
- Transactional SMS Software#10 of 76