Height

Height is an AI-powered collaborative project management tool that provides a REST API for managing tasks, lists, workspaces, attributes, dependencies, and automation triggers. The API enables developers to programmatically create, read, update, and delete tasks and task lists, manage workspace users and groups, post activity comments, and configure webhook integrations for real-time event notifications. Authentication is handled via secret API keys generated from workspace settings, with OAuth 2.0 available for third-party application integrations. Height announced the shutdown of its service with a final date of September 24, 2025, making this a historical profile of the platform's public developer footprint.

Height publishes 9 API contracts indexed on the APIs.io network, including Activities API, Field Templates API, Groups API, and 6 more. Tagged areas include Project Management, Task Management, Collaboration, Productivity, and Workflow Automation.

The Height catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Height’s developer surface includes authentication, documentation, engineering blog, pricing, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

0.0/100 minimal ▬ flat Agent 0/100 human only Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Project Management Task Management Collaboration Productivity Workflow Automation Artificial Intelligence Defunct

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Project & Portfolio Management

BC-900

Tasks

POST /tasks PATCH /tasks PATCH /tasks/:id

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 0.0/100 · minimal

Contract Quality 0.0 / 19

Developer Ergonomics 0.0 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 0.0 / 9

Discoverability 0.0 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/height/apis.yml: open an issue on github.com/api-evangelist/height to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Raycast Store Extensions (first-party publishers + community-wrapped products)	covered	23.9	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

Height Activities API

Activities can be messages, status updates of the task or integration updates (i.e. GitHub).

Height Field Templates API

The Field Templates API from Height — 3 operation(s) for field templates.

Height Groups API

The Groups API from Height — 1 operation(s) for groups.

Height Lists API

Tasks belong to one list. To create tasks, it's necessary to know in which list you want to create them.

Height Security Log Events API

The Security Log Events API from Height — 1 operation(s) for security log events.

Height Task Forms API

The Task Forms API from Height — 2 operation(s) for task forms.

Height Tasks API

The Tasks API from Height — 3 operation(s) for tasks.

Height Users API

The Users API from Height — 3 operation(s) for users.

Height Workspace API

The Workspace API from Height — 1 operation(s) for workspace.

Scroll for all 9

Open Collections 9

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Height APP Activities API

OPEN COLLECTION

Height APP Activities Field Templates API

OPEN COLLECTION

Height APP Activities Groups API

OPEN COLLECTION

Height APP Activities Lists API

OPEN COLLECTION

Height APP Activities Security Log Events API

OPEN COLLECTION

Height APP Activities Task Forms API

OPEN COLLECTION

Height APP Activities Tasks API

OPEN COLLECTION

Height APP Activities Users API

OPEN COLLECTION

Height APP Activities Workspace API

OPEN COLLECTION

Scroll for all 9

Height API pricing

Not yet checked against Height's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free
Team	$8.5
Business	$14.99
Enterprise	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Height Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Height Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Height

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Height Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Height Context

71 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Height API Rules

57 rules · 54 errors 2 warnings 1 info

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Height Authentication

apiKey · 1 scheme

SECURITY

Height Domain Security

no transport/DNS hardening detected

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Height Agentic Access

22 operations · 10 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: height
name: Height
description: 'Height is an AI-powered collaborative project management tool that provides a REST API for managing tasks, lists,
  workspaces, attributes, dependencies, and automation triggers. The API enables developers to programmatically create, read,
  update, and delete tasks and task lists, manage workspace users and groups, post activity comments, and configure webhook
  integrations for real-time event notifications. Authentication is handled via secret API keys generated from workspace settings,
  with OAuth 2.0 available for third-party application integrations. Height announced the shutdown of its service with a final
  date of September 24, 2025, making this a historical profile of the platform''s public developer footprint.

  '
x-status: defunct
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/height.png
url: https://raw.githubusercontent.com/api-evangelist/height/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Project Management
- Task Management
- Collaboration
- Productivity
- Workflow Automation
- Artificial Intelligence
- Defunct
tags_raw:
- Project Management
- Task Management
- Collaboration
- Productivity
- Workflow Automation
- AI
- Workflow-Automation
- Defunct
apis:
- aid: height:height-activities-api
  name: Height Activities API
  description: Activities can be messages, status updates of the task or integration updates (i.e. GitHub).
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Activities
  properties:
  - type: OpenAPI
    url: openapi/height-activities-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-field-templates-api
  name: Height Field Templates API
  description: The Field Templates API from Height — 3 operation(s) for field templates.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Field Templates
  properties:
  - type: OpenAPI
    url: openapi/height-field-templates-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-groups-api
  name: Height Groups API
  description: The Groups API from Height — 1 operation(s) for groups.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/height-groups-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-lists-api
  name: Height Lists API
  description: Tasks belong to one list. To create tasks, it's necessary to know in which list you want to create them.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - List
  tags_raw:
  - Lists
  properties:
  - type: OpenAPI
    url: openapi/height-lists-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-security-log-events-api
  name: Height Security Log Events API
  description: The Security Log Events API from Height — 1 operation(s) for security log events.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Security Log Events
  properties:
  - type: OpenAPI
    url: openapi/height-security-log-events-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-task-forms-api
  name: Height Task Forms API
  description: The Task Forms API from Height — 2 operation(s) for task forms.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Task Forms
  properties:
  - type: OpenAPI
    url: openapi/height-task-forms-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-tasks-api
  name: Height Tasks API
  description: The Tasks API from Height — 3 operation(s) for tasks.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/height-tasks-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-users-api
  name: Height Users API
  description: The Users API from Height — 3 operation(s) for users.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/height-users-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- aid: height:height-workspace-api
  name: Height Workspace API
  description: The Workspace API from Height — 1 operation(s) for workspace.
  humanURL: https://height.app/product/api
  baseURL: https://api.height.app
  tags:
  - Workspace
  properties:
  - type: OpenAPI
    url: openapi/height-workspace-api-openapi.yml
  - type: Documentation
    url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
common:
- type: CapabilityMap
  url: capabilities/height-capability-edges.yml
  name: Height Business Capability Map
- type: AgenticAccess
  url: agentic-access/height-agentic-access.yml
- type: DomainSecurity
  url: security/height-domain-security.yml
- type: Authentication
  url: authentication/height-authentication.yml
- type: Website
  url: https://height.app
- type: Documentation
  url: https://www.notion.so/API-documentation-643aea5bf01742de9232e5971cb4afda
- type: GitHubOrg
  url: https://github.com/heightapp
- type: LinkedIn
  url: https://www.linkedin.com/company/heightapp
- type: Blog
  url: https://height.app/blog
- type: Pricing
  url: https://height.app/pricing
- type: StatusPage
  url: https://status.height.app
- type: X
  url: https://twitter.com/height_app
- type: Plans
  url: plans/height-plans-pricing.yml
- type: RateLimits
  url: rate-limits/height-rate-limits.yml
- type: FinOps
  url: finops/height-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Height API — frequently asked questions

Does Height have an API?

Yes. APIs.io lists 9 APIs from Height, including Height Activities API, Height Field Templates API and Height Groups API, and 6 more.

Is there an OpenAPI specification for the Height API?

Yes. APIs.io indexes 9 OpenAPI specifications for Height, each linked for download from this page.

How do I authenticate with the Height API?

Height uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Height Authentication.

How much does the Height API cost?

APIs.io lists 4 pricing plans for Height, with each plan's price, limits and inclusions under Pricing on this page.

Is the Height API ready for AI agents?

Height has a Kin Score of 0.0 out of 100 (minimal) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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