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# Mailjet API

> Every Mailjet endpoint on Cotlet: inputs, JSON Schema, cURL, Python and Node.js examples and an example response for each call.

Source: https://cotlet.dev/docs/api/mailjet

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

14 endpoints for Mailjet, each at its own method and path, called with your API key. Open an endpoint for its inputs, examples and response.

- Base URL: `https://cotlet.dev/api/v1/mailjet`
- Connects with: Your own Mailjet login. What your agent can do follows your access: a shared user with the Marketer or Manager role can manage lists and campaigns, and account sharing is a Premium and Custom feature.
- Integration page: https://cotlet.dev/integrations/mailjet-api-mcp-server

## Read

Return data and change nothing in the account.

| Endpoint | Description |
|---|---|
| [`GET /contact-lists`](https://cotlet.dev/docs/api/mailjet/list_contact_lists.md) | Contact lists of your Mailjet account with their subscriber counts. |
| [`GET /lists/{list_id}/contacts`](https://cotlet.dev/docs/api/mailjet/list_contacts.md) | Contacts of one list with their properties, filtered by segment or email address. |
| [`GET /segments`](https://cotlet.dev/docs/api/mailjet/list_segments.md) | Segments from Contacts, then Segmentation, with their filters. |
| [`GET /campaigns`](https://cotlet.dev/docs/api/mailjet/list_campaigns.md) | Campaigns of your account with their status, subject and list. |
| [`GET /campaigns/{campaign_id}/report`](https://cotlet.dev/docs/api/mailjet/get_campaign_report.md) | Delivery and engagement numbers of one sent campaign. |
| [`GET /campaign-activities`](https://cotlet.dev/docs/api/mailjet/list_campaign_activity.md) | Contacts behind one count of a campaign: who opened, clicked, bounced or was blocked. |

## Write

Change the account. Calls marked Confirm wait for the user to approve them.

| Endpoint | Description |
|---|---|
| [`POST /segments`](https://cotlet.dev/docs/api/mailjet/create_segment.md) | Create a segment from activity, list and contact property filters. |
| [`POST /campaigns/{campaign_id}/duplicate`](https://cotlet.dev/docs/api/mailjet/duplicate_campaign.md) | Copy a sent or draft campaign into a new draft. |
| [`PATCH /campaigns/{campaign_id}`](https://cotlet.dev/docs/api/mailjet/update_campaign.md) | Change the name, subject or sender of a draft campaign. |
| [`PUT /lists/{list_id}/campaigns/{campaign_id}/recipients`](https://cotlet.dev/docs/api/mailjet/set_campaign_recipients.md) | Choose the contact list and optional segment a draft campaign goes to. |
| [`POST /campaigns/{campaign_id}/schedule`](https://cotlet.dev/docs/api/mailjet/schedule_campaign.md) (Confirm) | Schedule a draft campaign to send at a set time. |
| [`POST /campaigns/{campaign_id}`](https://cotlet.dev/docs/api/mailjet/send_campaign.md) (Confirm) | Send a draft campaign now. |
| [`POST /campaigns/{campaign_id}/unschedule`](https://cotlet.dev/docs/api/mailjet/unschedule_campaign.md) | Cancel the schedule of a campaign so it can be edited. |
| [`POST /contacts/unsubscribe`](https://cotlet.dev/docs/api/mailjet/unsubscribe_contacts.md) (Confirm) | Unsubscribe contacts from a list or exclude them from all campaigns. |

---

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Cotlet is an independent service. It is not affiliated with, endorsed by or sponsored by any of the products listed on this site. Product names are trademarks of their respective owners.

## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

One call creates the account and sends the access request; we email the user when access is granted.