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# Constant Contact API

> Every Constant Contact 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/constant-contact

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)

12 endpoints for Constant Contact, 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/constant-contact`
- Connects with: Your own Constant Contact login (Account Owner or Account Manager; a Campaign Creator cannot send emails or open contacts). You sign in in your own Cloud Browser and keep your multi-factor authentication.
- Integration page: https://cotlet.dev/integrations/constant-contact-api-mcp-server

## Read

Return data and change nothing in the account.

| Endpoint | Description |
|---|---|
| [`GET /emails`](https://cotlet.dev/docs/api/constant-contact/list_emails.md) | Emails in Channels > Emails with name, subject and status, filtered by status. |
| [`GET /emails/{email_id}/report`](https://cotlet.dev/docs/api/constant-contact/get_email_report.md) | Sends, bounces, opens, clicks, unsubscribes and did-not-open of one sent email, with its rates. |
| [`GET /email-contacts`](https://cotlet.dev/docs/api/constant-contact/list_email_contacts.md) | Contacts who did not open, opened, clicked, bounced or unsubscribed from one sent email. |
| [`GET /lists`](https://cotlet.dev/docs/api/constant-contact/list_lists.md) | Your contact lists with name and number of contacts. |
| [`GET /segments`](https://cotlet.dev/docs/api/constant-contact/list_segments.md) | Your saved segments with name. Account Owners and Account Managers only. |
| [`GET /contacts`](https://cotlet.dev/docs/api/constant-contact/list_contacts.md) | Contacts of the account, of one list or of one segment, with email, name and permission to send. |
| [`GET /contacts/{contact_id}`](https://cotlet.dev/docs/api/constant-contact/get_contact.md) | One contact with email, name, permission to send, lists and tags. |

## Write

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

| Endpoint | Description |
|---|---|
| [`POST /lists`](https://cotlet.dev/docs/api/constant-contact/create_list.md) | Create an empty contact list with a unique name. |
| [`POST /lists/{list_id}/contacts-to-lists`](https://cotlet.dev/docs/api/constant-contact/add_contacts_to_list.md) (Confirm) | Add up to 500 contacts, or a whole segment, to a list. |
| [`DELETE /lists/{list_id}/contacts-from-lists`](https://cotlet.dev/docs/api/constant-contact/remove_contacts_from_list.md) | Take contacts off a list; they stay in your account. |
| [`POST /emails/{email_id}/copy`](https://cotlet.dev/docs/api/constant-contact/copy_email.md) | Make a draft copy of an existing email. |
| [`POST /emails/{email_id}`](https://cotlet.dev/docs/api/constant-contact/send_email.md) (Confirm) | Send a draft now or schedule it up to a year ahead, to lists or one segment. |

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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.