[Cotlet](https://cotlet.dev/index.md) · [Integrations](https://cotlet.dev/integrations.md) · [How it works](https://cotlet.dev/how-it-works.md) · [Use cases](https://cotlet.dev/use-cases.md) · [Security](https://cotlet.dev/security.md) · [For developers](https://cotlet.dev/for-developers.md) · [For automation agencies](https://cotlet.dev/for-agencies.md) · [Blog](https://cotlet.dev/blog.md) · [API docs](https://cotlet.dev/docs.md) · [Help center](https://cotlet.dev/help.md) · [Changelog](https://cotlet.dev/changelog.md) · [Contact](https://cotlet.dev/contact.md) · [Pricing](https://cotlet.dev/pricing.md) · [Sign up](https://cotlet.dev/signup) # EmailOctopus API > Every EmailOctopus 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/emailoctopus 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 EmailOctopus, 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/emailoctopus` - Connects with: Your own EmailOctopus login. What your agent can do follows your access level: an Analyst can only view reports. You sign in in your own browser and keep your 2-step verification. - Integration page: https://cotlet.dev/integrations/emailoctopus-api-mcp-server ## Read Return data and change nothing in the account. | Endpoint | Description | |---|---| | [`GET /lists`](https://cotlet.dev/docs/api/emailoctopus/list_lists.md) | Lists of your EmailOctopus account with their subscribed, pending and unsubscribed counts. | | [`GET /lists/{list_id}/contacts`](https://cotlet.dev/docs/api/emailoctopus/list_contacts.md) | Contacts of one list with status, tags and dates, filtered by status, tag, segment or email address. | | [`GET /lists/{list_id}/segments`](https://cotlet.dev/docs/api/emailoctopus/list_segments.md) | Saved segments of a list with the conditions each one is built from. | | [`GET /campaigns`](https://cotlet.dev/docs/api/emailoctopus/list_campaigns.md) | Campaigns with status, subject, list, how many contacts they were sent to and open and click rates. | | [`GET /campaigns/{campaign_id}/report`](https://cotlet.dev/docs/api/emailoctopus/get_campaign_report.md) | Report of one sent campaign: sent, opened, clicked, unsubscribed, bounced and complained, plus links clicked. | | [`GET /campaign-activities`](https://cotlet.dev/docs/api/emailoctopus/list_campaign_activity.md) | Contacts who opened, clicked, unsubscribed, bounced or complained on a campaign, or did not open or click. | ## Write Change the account. Calls marked Confirm wait for the user to approve them. | Endpoint | Description | |---|---| | [`POST /lists/{list_id}/segments`](https://cotlet.dev/docs/api/emailoctopus/create_segment.md) | Create a reusable segment on a list from conditions on tags, fields, dates, source or campaign and contact activity. | | [`POST /campaigns/{campaign_id}/duplicate`](https://cotlet.dev/docs/api/emailoctopus/duplicate_campaign.md) | Make a draft copy of a campaign, like Duplicate in the Campaigns tab. | | [`PATCH /campaigns/{campaign_id}`](https://cotlet.dev/docs/api/emailoctopus/update_campaign.md) | Change the name, subject, preview text or sender of a draft campaign. | | [`PUT /lists/{list_id}/campaigns/{campaign_id}/recipients`](https://cotlet.dev/docs/api/emailoctopus/set_campaign_recipients.md) | Choose who a draft campaign goes to: a whole list, a saved segment or a tag. | | [`POST /campaigns/{campaign_id}/schedule`](https://cotlet.dev/docs/api/emailoctopus/schedule_campaign.md) (Confirm) | Schedule a draft campaign for a date, time and timezone. | | [`POST /campaigns/{campaign_id}`](https://cotlet.dev/docs/api/emailoctopus/send_campaign.md) (Confirm) | Send a draft campaign right away. | | [`POST /campaigns/{campaign_id}/unschedule`](https://cotlet.dev/docs/api/emailoctopus/unschedule_campaign.md) | Stop a scheduled campaign from sending, like Unschedule in the Campaigns tab. | | [`POST /lists/{list_id}/contacts/unsubscribe`](https://cotlet.dev/docs/api/emailoctopus/unsubscribe_contacts.md) (Confirm) | Mark contacts as unsubscribed in bulk, by segment, tag or email addresses. | --- Give your AI agents your signed-in browser. **Product:** [Integrations](https://cotlet.dev/integrations.md) · [Use cases](https://cotlet.dev/use-cases.md) · [How it works](https://cotlet.dev/how-it-works.md) · [Pricing](https://cotlet.dev/pricing.md) · [Security](https://cotlet.dev/security.md) **Resources:** [Blog](https://cotlet.dev/blog.md) · [API docs](https://cotlet.dev/docs.md) · [Help center](https://cotlet.dev/help.md) · [Changelog](https://cotlet.dev/changelog.md) · [GitHub](https://github.com/cotletdev/cotlet) **Solutions:** [For developers](https://cotlet.dev/for-developers.md) · [For automation agencies](https://cotlet.dev/for-agencies.md) **Company:** [About](https://cotlet.dev/about.md) · [AI info: company facts](https://cotlet.dev/ai-info.md) · [Contact](https://cotlet.dev/contact.md) **Legal:** [Terms of service](https://cotlet.dev/terms) · [Privacy policy](https://cotlet.dev/privacy) · [Refund policy](https://cotlet.dev/refunds) · [Acceptable use](https://cotlet.dev/acceptable-use) · [Cookie policy](https://cotlet.dev/cookies) · [DPA](https://cotlet.dev/dpa) · [Subprocessors](https://cotlet.dev/subprocessors) **Elsewhere:** [Status page](https://status.cotlet.dev) · [Cotlet on GitHub](https://github.com/cotletdev) · [Cotlet on X](https://x.com/cotletdev) · [Cotlet on LinkedIn](https://www.linkedin.com/company/cotletdev) · [Cotlet on Product Hunt](https://www.producthunt.com/products/cotlet) · [Cotlet on Crunchbase](https://www.crunchbase.com/organization/cotlet) · [Cotlet on SaaSHub](https://www.saashub.com/cotlet) 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.