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
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
GetResponse

GetResponse Contacts API

API documentation for contacts and their properties (e.g., tags, custom fields)

Documentation Provider Profile APIs.io OpenAPI GitHub

GetResponse Contacts API is one of 49 APIs that GetResponse publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Contacts. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

This API exposes 11 operations across 8 paths, and defines 25 schemas. It is described by OpenAPI 3.2.0, at version 3.2026-07-28T07:58:55+00:00.

Requests are made against 3 base URLs: https://api.getresponse.com/v3, https://api3.getresponse360.com/v3, https://api3.getresponse360.pl/v3.

11 operations 8 paths 25 schemas 1 DELETE5 GET5 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
3.2026-07-28T07:58:55+00:00
Base URL
https://api.getresponse.com/v3
Authentication
API Key, OAuth 2.0
Contact
API Support - DevZone
Resource Areas
1

Authentication & Security 2

GetResponse Contacts API declares 2 security schemes for authenticating requests. An API key is passed in the header as X-Auth-Token (api-key). It supports OAuth 2.0 (oauth2) using the implicit, authorizationCode and clientCredentials flows, exposing 1 scope.

  • api-key — Header value must be prefixed with api-key

Paths & Operations 11

Across 8 paths, the API surfaces 11 operations — 1 DELETE, 5 GET, 5 POST. Each is listed below with its method, path, parameters, and response codes.

Contacts 11

API documentation for contacts and their properties (e.g., tags, custom fields)

GET
/contacts/{contactId}/activities
Get a list of contact activities
getActivities 6 params → 200400401429
GET
/campaigns/{campaignId}/contacts
Get contacts from a single campaign
getContactsFromCampaign 11 params → 200400401429
POST
/contacts/{contactId}/custom-fields
Upsert the custom fields of a contact
upsertContactCustoms 1 param body → 200404400401429
POST
/contacts/{contactId}/tags
Upsert the tags of a contact
upsertTags 1 param body → 200404400401429
GET
/contacts/{contactId}
Get contact details by contact ID
getContactById 2 params → 200404400401429
POST
/contacts/{contactId}
Update contact details
updateContact 1 param body → 200404409400401429
DELETE
/contacts/{contactId}
Delete a contact by contact ID
deleteContact 3 params → 204404400401429
GET
/contacts
Get contact list
getContactList 17 params → 200400401429
POST
/contacts
Create a new contact
createContact body → 202409400401429
POST
/contacts/batch
Create multiple contacts at once
createBatchContacts body → 202409400401429
GET
/contacts/{contactId}/consents
Get contact's consent fields
getContactConsentsById 2 params → 200400401429

Schemas 25

The contract defines 25 schemas that model the data the API accepts and returns. The most detailed are Contact (13 properties), ContactGeolocation (8 properties), ErrorResponse (7 properties), ContactCustomFieldValue (7 properties). Each schema is shown below with its type and property counts.

SortOrderEnum
string
CampaignReference
object
3 properties 1 required
ContactActivityResource
object
3 properties
NewContactCustomFieldValues
object
1 property
ContactCustomFieldList
array
UpsertContactCustomFields
object
1 required
ContactActivityClickTrack
object
3 properties
NewContact
object
2 required
NewContactCustomFieldValue
object
2 properties 2 required
DateOrDateTime
NewContactTag
object
1 property 1 required
ContactListElement
UpsertContactTags
object
1 required
UpdateContact
object
NewContactTags
object
1 property
ContactConsentHistoryItem
object
4 properties
ContactGeolocation
object
8 properties
ContactCustomFieldValue
object
7 properties 5 required
ContactActivity
object
6 properties
ContactCustomField
object
2 properties
ContactDetails
object
ContactTag
object
4 properties
ErrorResponse
object
7 properties 7 required
Contact
object
13 properties 3 required
ContactConsent
object
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

getresponse-contacts-api-openapi.yml Raw ↑

Other APIs GetResponse publishes across the network.

GetResponse A/B tests API
AE Profile APIs.io
GetResponse A/B tests - subject API
AE Profile APIs.io
GetResponse Accounts API
AE Profile APIs.io
GetResponse Addresses API
AE Profile APIs.io
GetResponse Autoresponders API
AE Profile APIs.io
GetResponse Campaigns (Lists) API
AE Profile APIs.io
GetResponse Carts API
AE Profile APIs.io
GetResponse Categories API
AE Profile APIs.io
GetResponse Click Tracks API
AE Profile APIs.io
GetResponse Custom Events API
AE Profile APIs.io
GetResponse Custom Fields API
AE Profile APIs.io
GetResponse Custom Reports API
AE Profile APIs.io
#Contacts
← Back to G APIs
API Details
ID
getresponse:getresponse-contacts-api
Base URL
https://api.getresponse.com/v3
Docs
https://apireference.getresponse.com/
Provider
GetResponse
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=getresponse-contacts-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/getresponse-contacts-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of GetResponse Contacts 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.