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
Greenhouse

Greenhouse CustomFields API

Org-defined custom fields and their options.

Documentation Provider Profile APIs.io OpenAPI GitHub

Greenhouse CustomFields API is one of 27 APIs that Greenhouse publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 2 JSON Schema definitions.

Tagged areas include Custom Fields. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, authentication docs, rate-limit docs, and 2 JSON Schemas.

This API exposes 9 operations across 4 paths, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://harvest.greenhouse.io/v1.

9 operations 4 paths 3 schemas 2 DELETE3 GET2 PATCH2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://harvest.greenhouse.io/v1
Authentication
HTTP Basic
Contact
Greenhouse Software
License
Greenhouse API Terms
Resource Areas
1

Authentication & Security 1

Greenhouse CustomFields API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

  • BasicAuth — HTTP Basic with the Harvest API key as the username and an empty password (Base64 encoded).

Paths & Operations 9

Across 4 paths, the API surfaces 9 operations — 2 DELETE, 3 GET, 2 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.

CustomFields 9

Org-defined custom fields and their options.

GET
/custom_fields
List Custom Fields
listCustomFields → 2004XX
POST
/custom_fields
Create Custom Field
createCustomField 1 param body → 2014XX
GET
/custom_fields/{id}
Retrieve Custom Field
getCustomField 1 param → 2004XX
PATCH
/custom_fields/{id}
Update Custom Field
updateCustomField 2 params body → 2004XX
DELETE
/custom_fields/{id}
Delete Custom Field
deleteCustomField 2 params → 2044XX
GET
/custom_fields/{id}/custom_field_options
List Custom Field Options
listCustomFieldOptions 1 param → 2004XX
POST
/custom_fields/{id}/custom_field_options
Create Custom Field Option
createCustomFieldOption 2 params body → 2014XX
PATCH
/custom_fields/{id}/custom_field_options/{option_id}
Update Custom Field Option
updateCustomFieldOption 3 params body → 2004XX
DELETE
/custom_fields/{id}/custom_field_options/{option_id}
Delete Custom Field Option
deleteCustomFieldOption 3 params → 2044XX

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are CustomField (8 properties), CustomFieldOption (4 properties), Error (2 properties). Each schema is shown below with its type and property counts.

CustomField
object
8 properties
Error
object
2 properties
CustomFieldOption
object
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

greenhouse-io-customfields-api-openapi.yml Raw ↑

Other APIs Greenhouse publishes across the network.

Greenhouse Recruiting Webhooks
AE Profile APIs.io
Greenhouse Onboarding Webhooks
AE Profile APIs.io
Greenhouse ActivityFeed API
AE Profile APIs.io
Greenhouse Applications API
AE Profile APIs.io
Greenhouse Approvals API
AE Profile APIs.io
Greenhouse Auth API
AE Profile APIs.io
Greenhouse Candidates API
AE Profile APIs.io
Greenhouse Departments API
AE Profile APIs.io
Greenhouse Events API
AE Profile APIs.io
Greenhouse GraphQL API
AE Profile APIs.io
Greenhouse JobOpenings API
AE Profile APIs.io
Greenhouse JobPosts API
AE Profile APIs.io
#Custom Fields
← Back to G APIs
API Details
ID
greenhouse-io:greenhouse-io-customfields-api
Base URL
https://harvest.greenhouse.io/v1
Docs
https://developers.greenhouse.io/harvest.html
Provider
Greenhouse
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=greenhouse-io-customfields-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/greenhouse-io-customfields-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 Greenhouse CustomFields 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.