GrowthZone

GrowthZone is association management software (AMS) for chambers of commerce, trade and professional associations, and member-based organizations - covering membership management, member and organization contacts, event registration, invoicing and scheduled billing, member directories, certifications, and communications. The GrowthZone REST API (base https://{subdomain}.growthzoneapp.com/api) exposes this data programmatically for CMS/directory embeds, SSO, and mobile integrations. It is a partner/customer-gated API - access requires an account with API Access enabled and an API Key issued by GrowthZone WebSupport - and is documented publicly at integration.growthzone.com. GrowthZone also operates ChamberMaster and MemberZone, which expose a separate legacy REST API. OAuth 2.0 / OpenID Connect is supported for SSO.

GrowthZone publishes 6 APIs on the APIs.io network, including Certifications API, Contacts API, Events API, and 3 more. Tagged areas include Association Management, AMS, Membership Management, Chambers of Commerce, and ChamberMaster.

GrowthZone’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.2/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-15 · rubric v0.22.0

AccessPaidSelf serve

1 APIs

Association Management AMS Membership ManagementChambers of CommerceChamberMasterMember DirectoryEvent Billing

Kin Score

Kin Score How this is scored →
scored 2026-09-15 · rubric v0.22.0

Composite quality — 35.2/100 · thin

Contract Quality 10.0 / 23

Developer Ergonomics 5.4 / 18

Access Clarity 7.1 / 18

Operational Transparency 3.7 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

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 0 / 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

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.

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 github.com/api-evangelist/growthzone: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

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

GrowthZone Certifications API

Certification tracks and component completion.

GrowthZone Contacts API

Individuals (persons) and organizations, and their related data.

GrowthZone Events API

Association event calendar and registration (modeled).

GrowthZone Groups & Directory API

Groups, categories, and directory listings.

GrowthZone Memberships API

Membership types and member rosters.

GrowthZone Scheduled Billing API

Recurring membership billing runs by membership type.

Open Collections 8

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

API Collection

OPEN COLLECTION

GrowthZone REST Certifications API

OPEN COLLECTION

GrowthZone REST Certifications Contacts API

OPEN COLLECTION

GrowthZone REST Certifications Events API

OPEN COLLECTION

GrowthZone REST Certifications Groups & Directory API

OPEN COLLECTION

GrowthZone REST Certifications Memberships API

OPEN COLLECTION

GrowthZone REST Certifications Scheduled Billing API

OPEN COLLECTION

GrowthZone REST API

OPEN COLLECTION

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Growthzone Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Growthzone Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Growthzone Finops

FINOPS

Security Posture 2

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

Growthzone Authentication

apiKey · 1 scheme

SECURITY

Growthzone Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Growthzone Agentic Access

25 operations · 8 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

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: growthzone
url: https://raw.githubusercontent.com/api-evangelist/growthzone/refs/heads/main/apis.yml
name: GrowthZone
kind: company
description: GrowthZone is association management software (AMS) for chambers of commerce, trade and professional associations,
  and member-based organizations - covering membership management, member and organization contacts, event registration, invoicing
  and scheduled billing, member directories, certifications, and communications. The GrowthZone REST API (base https://{subdomain}.growthzoneapp.com/api)
  exposes this data programmatically for CMS/directory embeds, SSO, and mobile integrations. It is a partner/customer-gated
  API - access requires an account with API Access enabled and an API Key issued by GrowthZone WebSupport - and is documented
  publicly at integration.growthzone.com. GrowthZone also operates ChamberMaster and MemberZone, which expose a separate legacy
  REST API. OAuth 2.0 / OpenID Connect is supported for SSO.
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: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/growthzone.png
tags:
- Association Management
- AMS
- Membership Management
- Chambers of Commerce
- ChamberMaster
- Member Directory
- Event
- Billing
tags_raw:
- Association Management
- AMS
- Membership Management
- Chambers of Commerce
- ChamberMaster
- Member Directory
- Events
- Billing
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: growthzone:growthzone-certifications-api
  name: GrowthZone Certifications API
  description: Certification tracks and component completion.
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Certifications
  properties:
  - type: OpenAPI
    url: openapi/growthzone-certifications-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
- aid: growthzone:growthzone-contacts-api
  name: GrowthZone Contacts API
  description: Individuals (persons) and organizations, and their related data.
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/growthzone-contacts-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
- aid: growthzone:growthzone-events-api
  name: GrowthZone Events API
  description: Association event calendar and registration (modeled).
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/growthzone-events-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
- aid: growthzone:growthzone-groups-directory-api
  name: GrowthZone Groups & Directory API
  description: Groups, categories, and directory listings.
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Groups & Directory
  properties:
  - type: OpenAPI
    url: openapi/growthzone-groups-directory-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
- aid: growthzone:growthzone-memberships-api
  name: GrowthZone Memberships API
  description: Membership types and member rosters.
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Memberships
  properties:
  - type: OpenAPI
    url: openapi/growthzone-memberships-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
- aid: growthzone:growthzone-scheduled-billing-api
  name: GrowthZone Scheduled Billing API
  description: Recurring membership billing runs by membership type.
  humanURL: https://integration.growthzone.com/growthzone-api/
  baseURL: https://{subdomain}.growthzoneapp.com/api
  tags:
  - Scheduled Billing
  properties:
  - type: OpenAPI
    url: openapi/growthzone-scheduled-billing-api-openapi.yml
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-api/
  - type: APIReference
    url: https://documentation.growthzoneapp.com/CuratedApi.html
  - type: PostmanCollection
    url: collections/growthzone.postman_collection.json
  - type: OpenCollection
    url: collections/growthzone.opencollection.json
  - type: APIReference
    url: https://documentation.growthzoneapp.com/ScheduledBilling.html
  - type: Documentation
    url: https://integration.growthzone.com/chambermaster-or-memberzone-api-documentation/
  - type: Documentation
    url: https://integration.growthzone.com/growthzone-oauth-documentation/
common:
- type: AgenticAccess
  url: agentic-access/growthzone-agentic-access.yml
- type: DomainSecurity
  url: security/growthzone-domain-security.yml
- type: Authentication
  url: authentication/growthzone-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/growthzone
- type: Website
  url: https://www.growthzone.com
- type: Documentation
  url: https://integration.growthzone.com
- type: Plans
  url: plans/growthzone-plans-pricing.yml
- type: RateLimits
  url: rate-limits/growthzone-rate-limits.yml
- type: FinOps
  url: finops/growthzone-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/growthzone"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/growthzone/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/growthzone/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.