Klaviyo · Capability
Klaviyo API — Custom Objects
Klaviyo API — Custom Objects. 6 operations. Lead operation: Bulk Create Data Source Records. Self-contained Naftiko capability covering one Klaviyo business surface.
What You Can Do
POST
Bulkcreatedatasourcerecords
— Bulk Create Data Source Records
/v1/api/data-source-record-bulk-create-jobs
POST
Createdatasourcerecord
— Create Data Source Record
/v1/api/data-source-record-create-jobs
GET
Getdatasources
— Get Data Sources
/v1/api/data-sources
POST
Createdatasource
— Create Data Source
/v1/api/data-sources
GET
Getdatasource
— Get Data Source
/v1/api/data-sources/{id}
DELETE
Deletedatasource
— Delete Data Source
/v1/api/data-sources/{id}
MCP Tools
bulk-create-data-source-records
Bulk Create Data Source Records
create-data-source-record
Create Data Source Record
get-data-sources
Get Data Sources
read-only
idempotent
create-data-source
Create Data Source
get-data-source
Get Data Source
read-only
idempotent
delete-data-source
Delete Data Source
idempotent
Capability Spec
naftiko: 1.0.0-alpha2
info:
label: Klaviyo API — Custom Objects
description: 'Klaviyo API — Custom Objects. 6 operations. Lead operation: Bulk Create Data Source Records. Self-contained
Naftiko capability covering one Klaviyo business surface.'
tags:
- Klaviyo
- Custom Objects
created: '2026-05-19'
modified: '2026-05-19'
binds:
- namespace: env
keys:
KLAVIYO_API_KEY: KLAVIYO_API_KEY
capability:
consumes:
- type: http
namespace: klaviyo-custom-objects
baseUri: https://a.klaviyo.com
description: Klaviyo API — Custom Objects business capability. Self-contained, no shared references.
resources:
- name: api-data-source-record-bulk-create-jobs
path: /api/data-source-record-bulk-create-jobs
operations:
- name: bulkcreatedatasourcerecords
method: POST
description: Bulk Create Data Source Records
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
- name: body
in: body
type: object
description: Request body (JSON).
required: true
- name: api-data-source-record-create-jobs
path: /api/data-source-record-create-jobs
operations:
- name: createdatasourcerecord
method: POST
description: Create Data Source Record
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
- name: body
in: body
type: object
description: Request body (JSON).
required: true
- name: api-data-sources
path: /api/data-sources
operations:
- name: getdatasources
method: GET
description: Get Data Sources
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: fields[data-source]
in: query
type: array
description: For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets
- name: page[cursor]
in: query
type: string
description: For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#pagination
- name: page[size]
in: query
type: integer
description: 'Default: 20. Min: 1. Max: 100.'
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
- name: createdatasource
method: POST
description: Create Data Source
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
- name: body
in: body
type: object
description: Request body (JSON).
required: true
- name: api-data-sources-id
path: /api/data-sources/{id}
operations:
- name: getdatasource
method: GET
description: Get Data Source
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: id
in: path
type: string
description: The ID of the data source
required: true
- name: fields[data-source]
in: query
type: array
description: For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
- name: deletedatasource
method: DELETE
description: Delete Data Source
outputRawFormat: json
outputParameters:
- name: result
type: object
value: $.
inputParameters:
- name: id
in: path
type: string
description: The ID of the data source to delete
required: true
- name: revision
in: header
type: string
description: 'API endpoint revision (format: YYYY-MM-DD[.suffix])'
required: true
authentication:
type: apikey
key: Authorization
value: '{{env.KLAVIYO_API_KEY}}'
placement: header
exposes:
- type: rest
namespace: klaviyo-custom-objects-rest
port: 8080
description: REST adapter for Klaviyo API — Custom Objects. One Spectral-compliant resource per consumed operation, prefixed
with /v1.
resources:
- path: /v1/api/data-source-record-bulk-create-jobs
name: api-data-source-record-bulk-create-jobs
description: REST surface for api-data-source-record-bulk-create-jobs.
operations:
- method: POST
name: bulkcreatedatasourcerecords
description: Bulk Create Data Source Records
call: klaviyo-custom-objects.bulkcreatedatasourcerecords
with:
revision: rest.revision
body: rest.body
outputParameters:
- type: object
mapping: $.
- path: /v1/api/data-source-record-create-jobs
name: api-data-source-record-create-jobs
description: REST surface for api-data-source-record-create-jobs.
operations:
- method: POST
name: createdatasourcerecord
description: Create Data Source Record
call: klaviyo-custom-objects.createdatasourcerecord
with:
revision: rest.revision
body: rest.body
outputParameters:
- type: object
mapping: $.
- path: /v1/api/data-sources
name: api-data-sources
description: REST surface for api-data-sources.
operations:
- method: GET
name: getdatasources
description: Get Data Sources
call: klaviyo-custom-objects.getdatasources
with:
fields[data-source]: rest.fields[data-source]
page[cursor]: rest.page[cursor]
page[size]: rest.page[size]
revision: rest.revision
outputParameters:
- type: object
mapping: $.
- method: POST
name: createdatasource
description: Create Data Source
call: klaviyo-custom-objects.createdatasource
with:
revision: rest.revision
body: rest.body
outputParameters:
- type: object
mapping: $.
- path: /v1/api/data-sources/{id}
name: api-data-sources-id
description: REST surface for api-data-sources-id.
operations:
- method: GET
name: getdatasource
description: Get Data Source
call: klaviyo-custom-objects.getdatasource
with:
id: rest.id
fields[data-source]: rest.fields[data-source]
revision: rest.revision
outputParameters:
- type: object
mapping: $.
- method: DELETE
name: deletedatasource
description: Delete Data Source
call: klaviyo-custom-objects.deletedatasource
with:
id: rest.id
revision: rest.revision
outputParameters:
- type: object
mapping: $.
- type: mcp
namespace: klaviyo-custom-objects-mcp
port: 9090
transport: http
description: MCP adapter for Klaviyo API — Custom Objects. One tool per consumed operation, routed inline through this
capability's consumes block.
tools:
- name: bulk-create-data-source-records
description: Bulk Create Data Source Records
hints:
readOnly: false
destructive: false
idempotent: false
call: klaviyo-custom-objects.bulkcreatedatasourcerecords
with:
revision: tools.revision
body: tools.body
outputParameters:
- type: object
mapping: $.
- name: create-data-source-record
description: Create Data Source Record
hints:
readOnly: false
destructive: false
idempotent: false
call: klaviyo-custom-objects.createdatasourcerecord
with:
revision: tools.revision
body: tools.body
outputParameters:
- type: object
mapping: $.
- name: get-data-sources
description: Get Data Sources
hints:
readOnly: true
destructive: false
idempotent: true
call: klaviyo-custom-objects.getdatasources
with:
fields[data-source]: tools.fields[data-source]
page[cursor]: tools.page[cursor]
page[size]: tools.page[size]
revision: tools.revision
outputParameters:
- type: object
mapping: $.
- name: create-data-source
description: Create Data Source
hints:
readOnly: false
destructive: false
idempotent: false
call: klaviyo-custom-objects.createdatasource
with:
revision: tools.revision
body: tools.body
outputParameters:
- type: object
mapping: $.
- name: get-data-source
description: Get Data Source
hints:
readOnly: true
destructive: false
idempotent: true
call: klaviyo-custom-objects.getdatasource
with:
id: tools.id
fields[data-source]: tools.fields[data-source]
revision: tools.revision
outputParameters:
- type: object
mapping: $.
- name: delete-data-source
description: Delete Data Source
hints:
readOnly: false
destructive: true
idempotent: true
call: klaviyo-custom-objects.deletedatasource
with:
id: tools.id
revision: tools.revision
outputParameters:
- type: object
mapping: $.