Mailjet

Mailjet is an email service provider offering a powerful REST API for sending transactional and marketing emails. It provides an easy-to-integrate API with support for PHP, Python, Ruby, Java, Node.js, C#, and Go, along with SMTP relay and real-time email tracking.

Mailjet publishes 8 APIs on the APIs.io network, including Campaigns API, Contact Lists API, Contacts API, and 5 more. Tagged areas include Email, Email Delivery, Marketing Email, SMTP, and Transactional Email.

Mailjet’s developer surface includes authentication, developer portal, signup flow, support, pricing, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.3/100 developing ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

AccessFreemiumSelf serve⚡ Free to try

8 APIs

Email Email Delivery Marketing Email SMTP Transactional Email

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 39.3/100 · developing

Contract Quality 14.0 / 25

Developer Ergonomics 5.7 / 20

Access Clarity 10.8 / 20

Operational Transparency 1.4 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 29/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/mailjet: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

GraphQL 1

GraphQL schemas published by this provider.

Rate Limits 1

Documented rate limits and quota policies.

Mailjet Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

LinkedIn

Blog

Blog

Source (apis.yml)

aid: mailjet
name: Mailjet
description: Mailjet is an email service provider offering a powerful REST API for sending transactional and marketing emails.
  It provides an easy-to-integrate API with support for PHP, Python, Ruby, Java, Node.js, C#, and Go, along with SMTP relay
  and real-time email tracking.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/mailjet.png
tags:
- Email
- Email Delivery
- Marketing Email
- SMTP
- Transactional Email
url: https://raw.githubusercontent.com/api-evangelist/mailjet/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: mailjet:mailjet-campaigns-api
  name: Mailjet Campaigns API
  description: Manage campaigns and drafts
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/mailjet-campaigns-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-contact-lists-api
  name: Mailjet Contact Lists API
  description: Manage contact lists and recipients
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Contact Lists
  properties:
  - type: OpenAPI
    url: openapi/mailjet-contact-lists-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-contacts-api
  name: Mailjet Contacts API
  description: Manage contacts and properties
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/mailjet-contacts-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-event-api
  name: Mailjet Event API
  description: Retrieve real-time event data
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Event
  properties:
  - type: OpenAPI
    url: openapi/mailjet-event-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-send-api
  name: Mailjet Send API
  description: Send transactional and marketing emails
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Send
  properties:
  - type: OpenAPI
    url: openapi/mailjet-send-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-senders-api
  name: Mailjet Senders API
  description: Manage verified sender addresses
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Senders
  properties:
  - type: OpenAPI
    url: openapi/mailjet-senders-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-statistics-api
  name: Mailjet Statistics API
  description: Retrieve aggregated sending statistics
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Statistics
  properties:
  - type: OpenAPI
    url: openapi/mailjet-statistics-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
- aid: mailjet:mailjet-templates-api
  name: Mailjet Templates API
  description: Manage reusable email templates
  humanURL: https://dev.mailjet.com/
  baseURL: https://api.mailjet.com/v3
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/mailjet-templates-api-openapi.yml
  - type: Documentation
    url: https://dev.mailjet.com/email/guides/
  - type: Reference
    url: https://dev.mailjet.com/email/reference/
  - type: GettingStarted
    url: https://dev.mailjet.com/email/guides/send-api-V3/
  - type: Authentication
    url: https://dev.mailjet.com/email/guides/#authentication
  - type: GraphQL
    url: graphql/mailjet-graphql.md
common:
- type: AgenticAccess
  url: agentic-access/mailjet-agentic-access.yml
- type: DomainSecurity
  url: security/mailjet-domain-security.yml
- type: Authentication
  url: authentication/mailjet-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/mailjet
- type: Portal
  url: https://dev.mailjet.com/
- type: Signup
  url: https://app.mailjet.com/signup
- type: Login
  url: https://app.mailjet.com/
- type: GitHubOrganization
  url: https://github.com/mailjet
- type: Support
  url: https://documentation.mailjet.com/hc/en-us
- type: Pricing
  url: https://www.mailjet.com/pricing/
- type: StatusPage
  url: https://mailjetstatus.com/
- type: TermsOfService
  url: https://www.mailjet.com/legal/terms/
- type: PrivacyPolicy
  url: https://www.mailjet.com/legal/privacy-policy/
- type: Blog
  url: https://www.mailjet.com/blog/feed/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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