ActivityHero website screenshot

ActivityHero

ActivityHero is an online marketplace connecting families with kids' camps, classes, and enrichment activities — a one-stop shop to find top-rated summer camps, holiday camps, and after-school classes near you across categories like art, science, sports, dance, and online programs. For activity providers it offers marketing and registration software (MarketingHero and custom registration software) plus programs for school districts. ActivityHero's developer surface is a provider integration built on outbound, HMAC-SHA256 signed JSON webhooks (a Registration API and a Schedule API) rather than a public REST API; it was surfaced as a portfolio company of 500 Global and enriched into the API Evangelist network from its published help-center docs.

ActivityHero publishes 1 API on the APIs.io network. Tagged areas include Company, Kids Activities, Camps, Classes, and Marketplace.

The ActivityHero catalog on APIs.io includes 1 event-driven AsyncAPI specification.

ActivityHero’s developer surface includes authentication, documentation, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
27.5/100 emerging ▬ flat Agent 19/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs
CompanyKids ActivitiesCampsClassesMarketplaceRegistrationWebhooksEducation

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 27.5/100 · emerging
Contract Quality 5.7 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 6.3 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 19/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/activityhero: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

ActivityHero Registration & Schedule Webhooks

ActivityHero's provider integration surface — outbound, HMAC-SHA256-signed JSON webhooks that sync registrations and activity schedules between ActivityHero and a provider's own...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Activityhero Webhooks

ASYNCAPI

Security Posture 2

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

Activityhero Authentication

signature · 1 scheme

SECURITY

Activityhero Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 Conventions
Conventions

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter
HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: activityhero
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/activityhero.png
name: ActivityHero
description: ActivityHero is an online marketplace connecting families with kids' camps, classes, and enrichment activities
  — a one-stop shop to find top-rated summer camps, holiday camps, and after-school classes near you across categories like
  art, science, sports, dance, and online programs. For activity providers it offers marketing and registration software (MarketingHero
  and custom registration software) plus programs for school districts. ActivityHero's developer surface is a provider integration
  built on outbound, HMAC-SHA256 signed JSON webhooks (a Registration API and a Schedule API) rather than a public REST API;
  it was surfaced as a portfolio company of 500 Global and enriched into the API Evangelist network from its published help-center
  docs.
url: https://raw.githubusercontent.com/api-evangelist/activityhero/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Kids Activities
- Camps
- Classes
- Marketplace
- Registration
- Webhooks
- Education
apis:
- name: ActivityHero Registration & Schedule Webhooks
  description: ActivityHero's provider integration surface — outbound, HMAC-SHA256-signed JSON webhooks that sync registrations
    and activity schedules between ActivityHero and a provider's own systems (configured under Manage Listing > API; Zapier-compatible).
  humanURL: https://help.activityhero.com/api
  baseURL: https://www.activityhero.com
  tags:
  - Webhooks
  - Registration
  - Schedules
  properties:
  - type: Documentation
    url: https://help.activityhero.com/api
  - type: Webhooks
    url: asyncapi/activityhero-webhooks.yml
  - type: Authentication
    url: authentication/activityhero-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Webhooks
  url: asyncapi/activityhero-webhooks.yml
- type: Authentication
  url: authentication/activityhero-authentication.yml
- type: Conventions
  url: conventions/activityhero-conventions.yml
- type: WellKnown
  url: well-known/activityhero-well-known.yml
- type: LLMsTxt
  url: llms/activityhero-llms.txt
- type: DomainSecurity
  url: security/activityhero-domain-security.yml
- type: Documentation
  url: https://help.activityhero.com/api
- type: HelpCenter
  url: https://help.activityhero.com
- type: Blog
  url: https://www.activityhero.com/blog/
- type: Pricing
  url: https://business.activityhero.com/pricing
- type: TermsOfService
  url: https://activityhero.com/pages/terms
- type: PrivacyPolicy
  url: https://activityhero.com/pages/privacy
- type: Website
  url: https://activityhero.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence