How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

EmailOctopus Contact API

Manage subscribers on a list: create, read, update, delete, upsert by email address, and update many at once through the batch endpoint. The upsert (PUT /lists/{list_id}/contacts) is the safe-retry path, since the API publishes no idempotency key. 7 operation(s) in the EmailOctopus v2 OpenAPI 3.1.0.

EmailOctopus Contact API is one of 6 APIs that EmailOctopus publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Contact and Email Marketing. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 7 operations across 3 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

Requests are made against a single base URL, https://api.emailoctopus.com.

7 operations 3 paths 4 schemas 1 DELETE2 GET1 POST3 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://api.emailoctopus.com
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

EmailOctopus Contact API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (api_key). By default, every request must be authenticated.

  • api_key — You can obtain your API key at https://api.emailoctopus.com/developer/api-keys/create

Paths & Operations 7

Across 3 paths, the API surfaces 7 operations — 1 DELETE, 2 GET, 1 POST, 3 PUT. Each is listed below with its method, path, parameters, and response codes.

Contact 7

A contact represents an individual person within a list. For instance someone who has subscribed to your weekly newsletter. Contacts contain essential information such as their em…

GET
/lists/{list_id}/contacts
Get contacts
api_lists_list_idcontacts_get 9 params → 200400401403404
PUT
/lists/{list_id}/contacts
Create or update contact
api_lists_list_idcontacts_put 1 param body → 200400401403404409422
POST
/lists/{list_id}/contacts
Create contact
api_lists_list_idcontacts_post 1 param body → 201400401403404409422
PUT
/lists/{list_id}/contacts/batch
Update multiple list contacts
api_lists_list_idcontactsbatch_put 1 param body → 200400401403404422
GET
/lists/{list_id}/contacts/{contact_id}
Get contact
api_lists_list_idcontacts_contact_id_get 2 params → 200400401403404
PUT
/lists/{list_id}/contacts/{contact_id}
Update contact
api_lists_list_idcontacts_contact_id_put 2 params body → 200400401403404409422
DELETE
/lists/{list_id}/contacts/{contact_id}
Delete contact
api_lists_list_idcontacts_contact_id_delete 2 params → 204400401403404

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are ListContact-get (7 properties), ListContactBatchItemResource-put (5 properties), List.contacts.collection-get (2 properties), ListContactBatch-put (1 property). Each schema is shown below with its type and property counts.

ListContactBatchItemResource-put
object
5 properties 1 required
ListContactBatch-put
object
1 property
ListContact-get
object
Get details of a contact of a list.
7 properties 1 required
List.contacts.collection-get
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

emailoctopus-contact-api-openapi.yml Raw ↑

Other APIs EmailOctopus publishes across the network.

EmailOctopus Automation API
EmailOctopus Campaign API
EmailOctopus Field API
EmailOctopus List API
EmailOctopus Tag API
Where this information came from

This is an independent, third-party profile of EmailOctopus Contact API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.