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

Marketo Fields API

The Fields API from Marketo — 4 operation(s) for fields.

Marketo Fields API is one of 68 APIs that Marketo publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Fields. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

This API exposes 4 operations across 4 paths, and defines 14 schemas. It is described by OpenAPI 3.0.1, at version 1.0.

Requests are made against a single base URL, https://{munchkinId}.mktorest.com.

4 operations 4 paths 14 schemas 4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.1
API Version
1.0
Base URL
https://{munchkinId}.mktorest.com/rest
Terms of Service
Resource Areas
1

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 POST. Each is listed below with its method, path, parameters, and response codes.

Fields 4
POST
/rest/asset/v1/form/{formId}/field/{fieldId}/visibility.json
Marketo Add Form Field Visibility Rules
addFormFieldVisibilityRuleUsingPOST 2 params body → 200
POST
/rest/asset/v1/form/{id}/field/{fieldId}.json
Marketo Update Form Field
updateFormFieldUsingPOST 2 params body → 200
POST
/rest/asset/v1/form/{id}/field/{fieldId}/delete.json
Marketo Delete Form Field
deleteFormFieldUsingPOST 2 params → 200
POST
/rest/asset/v1/form/{id}/fieldSet/{fieldSetId}/field/{fieldId}/delete.json
Marketo Delete Field from Fieldset
deleteFormFieldFromFieldSetUsingPOST 3 params → 200

Schemas 14

The contract defines 14 schemas that model the data the API accepts and returns. The most detailed are UpdateFormFieldRequest (21 properties), LpFormFieldResponse (20 properties), FormVisibilityRuleDTO (5 properties), VisibilityRuleRequest (5 properties). Each schema is shown below with its type and property counts.

FormVisibilityRuleResponse
object
3 properties
VisibilityRuleRequest
object
5 properties 3 required
LpFormFieldResponse
object
20 properties
FormFieldVisibilityRequest
object
2 properties 2 required
AddFormFieldVisibilityRequest
object
1 property
ResponseOfIdResponse
object
5 properties
FormVisibilityRuleDTO
object
5 properties
FormFieldVisibilityRuleResponse
object
2 properties
IdResponse
object
1 property 1 required
ResponseOfLpFormFieldResponse
object
5 properties
PickListDTO
object
4 properties
Error
object
2 properties 2 required
UpdateFormFieldRequest
object
21 properties
ResponseOfFormVisibilityRuleResponse
object
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

marketo-fields-api-openapi.yml Raw ↑

Other APIs Marketo publishes across the network.

Marketo Approve API
Marketo Assets API
Marketo Campaigns API
Marketo Cc API
Marketo Channel API
Marketo Channels API
Marketo Clone.json API
Marketo Content API
Marketo Content.json API
Marketo Delete.json API
Marketo Discard API
Marketo Dynamic API
Where this information came from

This is an independent, third-party profile of Marketo Fields 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.