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
PostHog

PostHog property_definitions API

The property_definitions API from PostHog — 4 operation(s) for property_definitions.

Documentation Provider Profile APIs.io OpenAPI GitHub

PostHog property_definitions API is one of 139 APIs that PostHog publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Property Definitions. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, authentication docs, and an AsyncAPI specification.

This API exposes 7 operations across 4 paths, and defines 13 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

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

7 operations 4 paths 13 schemas 1 DELETE3 GET1 PATCH1 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://app.posthog.com/api
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

PostHog property_definitions API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (PersonalAPIKeyAuth).

Paths & Operations 7

Across 4 paths, the API surfaces 7 operations — 1 DELETE, 3 GET, 1 PATCH, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

property_definitions 7
GET
/api/projects/{project_id}/property_definitions/
property_definitions_list 15 params → 200
GET
/api/projects/{project_id}/property_definitions/{id}/
property_definitions_retrieve 2 params → 200
PUT
/api/projects/{project_id}/property_definitions/{id}/
property_definitions_update 2 params body → 200
PATCH
/api/projects/{project_id}/property_definitions/{id}/
property_definitions_partial_update 2 params body → 200
DELETE
/api/projects/{project_id}/property_definitions/{id}/
property_definitions_destroy 2 params → 204
POST
/api/projects/{project_id}/property_definitions/bulk_update_tags/
Bulk update tags on multiple objects. Accepts: - {"ids": [...], "action": "add"|"remove"|"set", "tags": ["tag1", "tag2"]} Actions: - "add": Add tags to existing tags on each object - "remove": Remove…
property_definitions_bulk_update_tags_create 1 param body → 200
GET
/api/projects/{project_id}/property_definitions/seen_together/
Allows a caller to provide a list of event names and a single property name Returns a map of the event names to a boolean representing whether that property has ever been seen with that eventname
property_definitions_seen_together_retrieve 1 param → 200

Schemas 13

The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are EnterprisePropertyDefinition (13 properties), PatchedEnterprisePropertyDefinition (13 properties), UserBasic (9 properties), PaginatedEnterprisePropertyDefinitionList (4 properties). Each schema is shown below with its type and property counts.

UserBasic
object
9 properties 4 required
BulkUpdateTagsRequest
object
3 properties 3 required
BlankEnum
NullEnum
RoleAtOrganizationEnum
string
engineering - Engineering data - Data product - Product Management founder - Founder leadership - Leadership marketing - Marketing sales - Sales / Success othe…
PatchedEnterprisePropertyDefinition
object
Serializer mixin that handles tags for objects.
13 properties
PropertyDefinitionTypeEnum
string
DateTime - DateTime String - String Numeric - Numeric Boolean - Boolean Duration - Duration
EnterprisePropertyDefinition
object
Serializer mixin that handles tags for objects.
13 properties 8 required
BulkUpdateTagsResponse
object
2 properties 2 required
BulkUpdateTagsError
object
2 properties 2 required
PaginatedEnterprisePropertyDefinitionList
object
4 properties 2 required
BulkUpdateTagsItem
object
2 properties 2 required
ActionEnum
string
add - add remove - remove set - set

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

posthog-property-definitions-api-openapi.yml Raw ↑

Other APIs PostHog publishes across the network.

PostHog Capture API
AE Profile APIs.io
PostHog Query API
AE Profile APIs.io
PostHog Persons API
AE Profile APIs.io
PostHog Feature Flags API
AE Profile APIs.io
PostHog Experiments API
AE Profile APIs.io
PostHog Insights API
AE Profile APIs.io
PostHog Cohorts API
AE Profile APIs.io
PostHog Annotations API
AE Profile APIs.io
PostHog actions API
AE Profile APIs.io
PostHog activity_log API
AE Profile APIs.io
PostHog activity_logs API
AE Profile APIs.io
PostHog advanced_activity_logs API
AE Profile APIs.io
#Property Definitions
← Back to P APIs
API Details
ID
posthog:posthog-property-definitions-api
Base URL
https://app.posthog.com/api
Docs
https://posthog.com/docs/api
Provider
PostHog
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=posthog-property-definitions-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/posthog-property-definitions-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 PostHog property_definitions 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.