Mailjet

Best for: Prototypes and side projects - free to start, no sales call; Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt)

Pricing model

Hybrid (base + usage) [2]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day ; Starter. $9/month. 8,000 emails/month. No daily sending limit ; Essential. $17/month. 15,000 emails/month.”

Published pricing

✓ Yes [3]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day ; Starter. $9/month. 8,000 emails/month. No daily sending limit ; Essential. $17/month. 15,000 emails/month.”

Free tier

✓ Yes [4]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day”

Free tier details

6,000 emails/month, 200 emails per day [5]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day ; Starter. $9/month. 8,000 emails/month. No daily sending limit ; Essential. $17/month. 15,000 emails/month.”documentation.mailjet.com/hc/en-us/articles/8625025643803-Mailjet-Subscription-Management“With the Free plan, you can send 200 emails a day (6000 emails per month) for free.”

Self-serve signup

✓ Yes [6]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day”

Requires sales call

✗ No [7]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day”

Enterprise plan

✓ Yes [8]mailjet.com/pricing/“Free. $0/month. 6,000 emails/month. 200 emails per day ; Starter. $9/month. 8,000 emails/month. No daily sending limit ; Essential. $17/month. 15,000 emails/month.”

• Transactional send
• Marketing / broadcasts
• Inbound parsing
• Templates
• Batch send
• Scheduled send
• SMTP relay
• Dedicated IP
• Analytics

Supported actions

send_email, manage_messages, manage_contacts, manage_campaigns, segmentation, manage_templates, get_statistics, track_message_events, manage_webhooks, parse_inbound_email, manage_sender_addresses_and_domains, manage_settings, send_sms [9]dev.mailjet.com/email/reference/“Send API v3.1 gives more detailed feedback information on your sendings, while Send API v3 gives you a higher sending limit per single API call.”dev.mailjet.com/email/reference/overview/“Use the API to access all our API endpoints, used for a variety of purposes, including sending emails, contact management and retrieving statistics.”dev.mailjet.com/sms/reference/send-message/“With the Mailjet Send SMS API you can easily send transactional SMS messages to more than 50 countries.”

Regions

EU (data stored in Frankfurt, Germany and Saint-Ghislain, Belgium; 2 regions and 6 data centers in Europe), Global (customers worldwide), SMS available in 50+ countries [10]mailjet.com/products/email-api/infrastructure/“We distribute resources across 2 regions and 6 data centers in Europe.”mailjet.com/legal/security-privacy/dev.mailjet.com/sms/reference/send-message/“With the Mailjet Send SMS API you can easily send transactional SMS messages to more than 50 countries.”

Input types

JSON, SMTP [11]dev.mailjet.com/email/guides/“The Mailjet API is organized around REST. It has predictable, resource-oriented URLs, and uses HTTP response codes to indicate API errors.”

Output types

JSON [12]dev.mailjet.com/email/guides/“The Mailjet API is organized around REST. It has predictable, resource-oriented URLs, and uses HTTP response codes to indicate API errors.”

Webhooks

✓ Yes [13]dev.mailjet.com/email/guides/webhooks/“The Mailjet webhook resources allow you to receive real-time notification through HTTP requests on events linked to the messages you sent.”mailjet.com/products/email-api/event-api/“With Mailjet's webhook notifications, track email events in real time. We will PUSH the open, click, bounce and all other email events directly to your system.”

Sandbox / test mode

✓ Yes [14]dev.mailjet.com/email/guides/send-api-v31/

SDK languages

PHP, Python, Node.js, Java, C#/.NET, Go, Ruby [15]dev.mailjet.com“The Mailjet API guides with all references, wrappers samples (PHP, Python, Ruby, Java, Node.js, C#/.NET and GO) and template language documentation.”

MCP server

✓ Yes [16]documentation.mailjet.com/hc/en-us/articles/42810091203867-Installing-the-Mailjet-MCP-Server“The Mailjet MCP server is a small service that runs on your computer and exposes Mailjet APIs to Claude.”

SOC 2

SOC 2 Type II [17]trust.sinch.com“Mailgun Technologies, Inc has completed its SOC2 Type II for Sinch Mailgun, Mailjet and Email on Acid Services for the August 1, 2024 to July 31, 2025 period.”

HIPAA

✓ Yes [18]mailjet.com/products/data-security-and-privacy/“ISO 27001 Certified. You can trust that your data is protected by enterprise-grade security standards. GDPR Compliant. As the first company in the world to”

GDPR

✓ Yes [19]mailjet.com/products/data-security-and-privacy/mailjet.com/legal/security-privacy/“Is Mailjet GDPR compliant? We are proud to announce our complete implementation of all GDPR's rigid requirements.”

ISO 27001

✓ Yes [20]mailjet.com/products/data-security-and-privacy/“ISO 27001 Certified. You can trust that your data is protected by enterprise-grade security standards.”mailjet.com/resources/learn/gdpr/mailjet-first-esp-iso-27001-and-gdpr-certified

PCI DSS

✓ Yes [21]mailjet.com/products/data-security-and-privacy/“ISO 27001 Certified. You can trust that your data is protected by enterprise-grade security standards. GDPR Compliant. As the first company in the world to”

Published SLA

✓ Yes [22]mailjet.com/legal/sla/

Known restrictions

Bounces ≤ 5% (calculated on the number of messages that have bounced), Unsubscribes ≤ 1.4% (or 1% if unsubs > clicks), Spam Complaints ≤ 0.08% (calculated on the number of messages reported as spam), Blocks < 20% (calculated on the number of messages blocked), Max 50 messages per single API call, Attachments must not exceed 15 MB, Max 50 elements per array for Messages, Attachments, InlineAttachments, Headers, and Variables, Acquiring or sending to a third-party mailing list is prohibited, You may not sign up or use more than one free account for each of our respective email platforms without prior written consent [23]mailjet.com/legal/sending-policy/“Acceptable Use Policy · 1) Requirements. · 2) Prohibited Behavior · 3) Prohibited Content · 4) Excessive Use of Shared or Free System Resources · 5)”dev.mailjet.com/email/guides/send-api-v31/

• Docs
• API reference
• Changelog
• Status page

Docs rendering: static

API style

rest

Base URL

https://api.mailjet.com/v3

Version

v3

Versioning

url

Stability

ga

Auth methods

basic

Error format

vendor-specific

SDKs

• PHP mailjet/mailjet-apiv3-php · repo · updated 2026-05 · 272★
• Python mailjet-rest · repo · updated 2026-06 · 120★
• Node.js node-mailjet · repo · updated 2025-10 · 254★
• Java com.mailjet:mailjet-client · repo · updated 2025-06 · 73★
• C#/.NET Mailjet.Api · repo · updated 2026-05 · 80★
• Go github.com/mailjet/mailjet-apiv3-go · repo · updated 2025-11 · 93★
• Ruby mailjet · repo · updated 2025-11 · 129★

• Auth docs
• Quickstart
• MCP server
• Webhook events

Launched

2010-01-01

• Mailgun

  Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers.

  Hybrid · free tier · public pricing · self-serve

• Amazon Simple Email Service

  Amazon Simple Email Service (Amazon SES) is a cloud-based email service provider that can integrate into any application for high-volume email automation.

  Usage · public pricing · self-serve

• Brevo

  Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email.

  Hybrid · free tier · public pricing · self-serve

• SendGrid

  Email at scale, proven deliverability, and so much more

  Hybrid · public pricing · self-serve

• MailerSend

  MailerSend is a powerful transactional email system built for developers but designed so non-tech teams can contribute without coding.

  Hybrid · free tier · public pricing · self-serve

• Postmark

  Fast, Reliable Email Delivery Service

  Hybrid · free tier · public pricing · self-serve

Mailjet alternatives · Mailjet vs Mailgun · All Email APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: mailjet.com
2. ↑Pricing model: mailjet.com
3. ↑Published pricing: mailjet.com
4. ↑Free tier: mailjet.com
5. ↑Free tier details: mailjet.com · documentation.mailjet.com
6. ↑Self-serve signup: mailjet.com
7. ↑Requires sales call: mailjet.com
8. ↑Enterprise plan: mailjet.com
9. ↑Supported actions: dev.mailjet.com · dev.mailjet.com · dev.mailjet.com
10. ↑Regions: mailjet.com · mailjet.com · dev.mailjet.com
11. ↑Input types: dev.mailjet.com
12. ↑Output types: dev.mailjet.com
13. ↑Webhooks: dev.mailjet.com · mailjet.com
14. ↑Sandbox: dev.mailjet.com
15. ↑SDK languages: dev.mailjet.com
16. ↑MCP server: documentation.mailjet.com
17. ↑SOC 2: trust.sinch.com
18. ↑HIPAA: mailjet.com
19. ↑GDPR: mailjet.com · mailjet.com
20. ↑ISO 27001: mailjet.com · mailjet.com
21. ↑PCI DSS: mailjet.com
22. ↑Published SLA: mailjet.com
23. ↑Known restrictions: mailjet.com · dev.mailjet.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Agent Friendliness: 40 → 60
2. 2026-06-15 Score Docs Quality: 25 → 45
3. 2026-06-15 Has Structured Data: (none) → Yes
4. 2026-06-15 Robots Allows Agents: (none) → Yes
5. 2026-06-15 API Reference URL: (none) → https://www.mailjet.com/fr/glossaire/reference/
6. 2026-06-09 Best For: Prototypes and side projects — free to start, no sales call, Regulated or enter… → Prototypes and side projects - free to start, no sales call, Regulated or enter…
7. 2026-06-09 Scoring Methodology: Scores are computed deterministically from this profile's published, sourced fi… → Scores are computed deterministically from this profile's published, sourced fi…
8. 2026-06-09 Best For: (none) → Prototypes and side projects — free to start, no sales call, Regulated or enter…
9. 2026-06-09 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
10. 2026-06-09 Score Agent Friendliness: (none) → 40
11. 2026-06-09 Score Pricing Transparency: (none) → 100
12. 2026-06-09 Score Setup Speed: (none) → 100
13. 2026-06-09 Score Docs Quality: (none) → 25
14. 2026-06-09 Score Procurement Friction: (none) → 100
15. 2026-06-09 Score Trust Readiness: (none) → 100
16. 2026-06-08 Changelog URL: (none) → https://www.mailjet.com/releases
17. 2026-06-08 Rendering: (none) → static
18. 2026-06-08 Status Page URL: (none) → https://status.mailjet.com
19. 2026-06-08 Llms Txt Present: (none) → No
20. 2026-06-08 Docs URL: (none) → https://www.mailjet.com/documentation
21. 2026-06-07 SDK Packages: PHP, Python, Node.js, Java, C#/.NET, Go, Ruby → PHP, Python, Node.js, Java, C#/.NET, Go, Ruby
22. 2026-06-07 Summary Md: (none) → Mailjet is an email platform for transactional and marketing email, built for d…
23. 2026-06-07 SDK Languages: PHP, Python, Ruby, Java, Node.js, Go, C# → PHP, Python, Node.js, Java, C#/.NET, Go, Ruby
24. 2026-06-07 Auth Methods: (none) → basic
25. 2026-06-07 Auth Docs URL: (none) → https://dev.mailjet.com/email/reference/overview/authentication/
26. 2026-06-07 API Style: (none) → rest
27. 2026-06-07 Base URL: (none) → https://api.mailjet.com/v3
28. 2026-06-07 API Version: (none) → v3
29. 2026-06-07 Versioning Scheme: (none) → url
30. 2026-06-07 Stability: (none) → ga
31. 2026-06-07 SDK Packages: PHP, Python, Ruby, Java, Node.js, Go, C# → PHP, Python, Node.js, Java, C#/.NET, Go, Ruby
32. 2026-06-07 MCP URL: (none) → https://github.com/mailgun/mailjet-mcp-server
33. 2026-06-07 Quickstart URL: (none) → https://dev.mailjet.com/email/guides/getting-started/
34. 2026-06-07 Error Format: (none) → vendor-specific
35. 2026-06-07 Webhook Events URL: (none) → https://dev.mailjet.com/email/guides/webhooks/
36. 2026-06-07 Requires Verification: (none) → No
37. 2026-06-07 SLA URL: (none) → https://www.mailjet.com/legal/sla/
38. 2026-06-07 Data Retention Policy URL: (none) → https://www.mailjet.com/legal/privacy-policy/
39. 2026-06-07 Starting Price Usd: (none) → 9
40. 2026-06-07 Price Basis: (none) → month
41. 2026-06-07 Free Tier Limit: (none) → 6,000 emails/month
42. 2026-06-07 Launched At: (none) → 2010-01-01
43. 2026-06-07 Fields Not Found: (none) → ga_date, deprecation_policy_url, rate_limit_requests
44. 2026-06-07 SDK Packages: (none) → PHP, Python, Ruby, Java, Node.js, Go, C#
45. 2026-06-07 Capabilities: {"smtp":true,"inbound":true,"analytics":true,"marketing":true,"templates":true,… → {"smtp":true,"inbound":true,"analytics":true,"marketing":true,"templates":true,…

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/mailjet \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/mailjet/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

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