Hang website screenshot

Hang

Hang is a customer loyalty and engagement platform (originally a Paradigm-backed Web3 brand-loyalty company, now positioned as an AI-driven "autonomous marketing system") used by restaurant, beauty, apparel, and e-commerce brands to build and run tier-based membership and rewards programs. Its Partner API powers program memberships, points and activities, quests, challenges, puzzles, loot/mystery boxes, rewards and redemptions, balance/gift cards, tokenized rewards, program tiers and segments, plus point-of-sale integrations with Toast and Square and real-time webhooks. Brands can embed a white-labeled rewards portal or drive the whole loyalty experience programmatically through the REST API.

Hang publishes 18 APIs on the APIs.io network, including Activities API, Loot Box Reward Choices API, Loot box reward probabilities API, and 15 more. Tagged areas include Company, Consumer, Loyalty, Rewards, and Membership.

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

Hang’s developer surface includes authentication, documentation, API reference, getting-started guide, signup flow, pricing, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
52.1/100 developing ▬ flat Agent 42/100 agent ready Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1
AccessSelf serve
18 APIs 1 MCP Servers
CompanyConsumerLoyaltyRewardsMembershipCustomer EngagementMarketingRestaurantsPoint of SaleWebhooks

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1
Composite quality — 52.1/100 · developing
Contract Quality 13.9 / 25
Developer Ergonomics 9.9 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 4.4 / 13
Governance 2.5 / 12
Discoverability 9.3 / 10
Agent readiness — 42/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/hang: 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 18

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

Hang Activities API

The Activities API from Hang — 2 operation(s) for activities.

Hang Loot Box Reward Choices API

The Loot Box Reward Choices API from Hang — 2 operation(s) for loot box reward choices.

Hang Loot box reward probabilities API

The Loot box reward probabilities API from Hang — 2 operation(s) for loot box reward probabilities.

Hang Loot Boxes API

The Loot Boxes API from Hang — 4 operation(s) for loot boxes.

Hang Member Actions API

The Member Actions API from Hang — 3 operation(s) for member actions.

Hang Memberships API

The Memberships API from Hang — 10 operation(s) for memberships.

Hang Program memberships API

The Program memberships API from Hang — 3 operation(s) for program memberships.

Hang Program Tiers API

The Program Tiers API from Hang — 1 operation(s) for program tiers.

Hang ProgramMembershipPuzzles API

The ProgramMembershipPuzzles API from Hang — 3 operation(s) for programmembershippuzzles.

Hang Programs API

The Programs API from Hang — 2 operation(s) for programs.

Hang Puzzles API

The Puzzles API from Hang — 4 operation(s) for puzzles.

Hang Quests API

The Quests API from Hang — 9 operation(s) for quests.

Hang Redemptions API

The Redemptions API from Hang — 4 operation(s) for redemptions.

Hang Rewards API

The Rewards API from Hang — 5 operation(s) for rewards.

Hang TokenizedRewards API

The TokenizedRewards API from Hang — 2 operation(s) for tokenizedrewards.

Hang Tokens API

The Tokens API from Hang — 7 operation(s) for tokens.

Hang Users API

The Users API from Hang — 1 operation(s) for users.

Hang Wallet Integration API

The Wallet Integration API from Hang — 2 operation(s) for wallet integration.

Scroll for all 18

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

hang-mcp.yml

MCP SERVER

Event Specifications 1

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

Hang Webhooks

ASYNCAPI

Security Posture 4

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

Hang Authentication

apiKey · 1 scheme

SECURITY

Hang Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Hang Vulnerability Disclosure

contact published

SECURITY

Hang Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

ErrorCatalog
ErrorCatalog
 Conventions
Conventions
 Idempotency
Idempotency
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel
 Webhooks
Webhooks

Scroll for all 7

Access & Security 6

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication
 Security
Security
 Compliance
Compliance

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: hang
name: Hang
description: Hang is a customer loyalty and engagement platform (originally a Paradigm-backed Web3 brand-loyalty company,
  now positioned as an AI-driven "autonomous marketing system") used by restaurant, beauty, apparel, and e-commerce brands
  to build and run tier-based membership and rewards programs. Its Partner API powers program memberships, points and activities,
  quests, challenges, puzzles, loot/mystery boxes, rewards and redemptions, balance/gift cards, tokenized rewards, program
  tiers and segments, plus point-of-sale integrations with Toast and Square and real-time webhooks. Brands can embed a white-labeled
  rewards portal or drive the whole loyalty experience programmatically through the REST API.
url: https://raw.githubusercontent.com/api-evangelist/hang/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- paradigm
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://hang.com/og-image.png
tags:
- Company
- Consumer
- Loyalty
- Rewards
- Membership
- Customer Engagement
- Marketing
- Restaurants
- Point of Sale
- Webhooks
apis:
- aid: hang:hang-activities-api
  name: Hang Activities API
  description: The Activities API from Hang — 2 operation(s) for activities.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Activities
  properties:
  - type: OpenAPI
    url: openapi/hang-activities-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-loot-box-reward-choices-api
  name: Hang Loot Box Reward Choices API
  description: The Loot Box Reward Choices API from Hang — 2 operation(s) for loot box reward choices.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Loot Box Reward Choices
  properties:
  - type: OpenAPI
    url: openapi/hang-loot-box-reward-choices-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-loot-box-reward-probabilities-api
  name: Hang Loot box reward probabilities API
  description: The Loot box reward probabilities API from Hang — 2 operation(s) for loot box reward probabilities.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Loot box reward probabilities
  properties:
  - type: OpenAPI
    url: openapi/hang-loot-box-reward-probabilities-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-loot-boxes-api
  name: Hang Loot Boxes API
  description: The Loot Boxes API from Hang — 4 operation(s) for loot boxes.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Loot Boxes
  properties:
  - type: OpenAPI
    url: openapi/hang-loot-boxes-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-member-actions-api
  name: Hang Member Actions API
  description: The Member Actions API from Hang — 3 operation(s) for member actions.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Member Actions
  properties:
  - type: OpenAPI
    url: openapi/hang-member-actions-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-memberships-api
  name: Hang Memberships API
  description: The Memberships API from Hang — 10 operation(s) for memberships.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Memberships
  properties:
  - type: OpenAPI
    url: openapi/hang-memberships-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-program-memberships-api
  name: Hang Program memberships API
  description: The Program memberships API from Hang — 3 operation(s) for program memberships.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Program memberships
  properties:
  - type: OpenAPI
    url: openapi/hang-program-memberships-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-program-tiers-api
  name: Hang Program Tiers API
  description: The Program Tiers API from Hang — 1 operation(s) for program tiers.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Program Tiers
  properties:
  - type: OpenAPI
    url: openapi/hang-program-tiers-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-programmembershippuzzles-api
  name: Hang ProgramMembershipPuzzles API
  description: The ProgramMembershipPuzzles API from Hang — 3 operation(s) for programmembershippuzzles.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - ProgramMembershipPuzzles
  properties:
  - type: OpenAPI
    url: openapi/hang-programmembershippuzzles-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-programs-api
  name: Hang Programs API
  description: The Programs API from Hang — 2 operation(s) for programs.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Programs
  properties:
  - type: OpenAPI
    url: openapi/hang-programs-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-puzzles-api
  name: Hang Puzzles API
  description: The Puzzles API from Hang — 4 operation(s) for puzzles.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Puzzles
  properties:
  - type: OpenAPI
    url: openapi/hang-puzzles-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-quests-api
  name: Hang Quests API
  description: The Quests API from Hang — 9 operation(s) for quests.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Quests
  properties:
  - type: OpenAPI
    url: openapi/hang-quests-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-redemptions-api
  name: Hang Redemptions API
  description: The Redemptions API from Hang — 4 operation(s) for redemptions.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Redemptions
  properties:
  - type: OpenAPI
    url: openapi/hang-redemptions-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-rewards-api
  name: Hang Rewards API
  description: The Rewards API from Hang — 5 operation(s) for rewards.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Rewards
  properties:
  - type: OpenAPI
    url: openapi/hang-rewards-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-tokenizedrewards-api
  name: Hang TokenizedRewards API
  description: The TokenizedRewards API from Hang — 2 operation(s) for tokenizedrewards.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - TokenizedRewards
  properties:
  - type: OpenAPI
    url: openapi/hang-tokenizedrewards-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-tokens-api
  name: Hang Tokens API
  description: The Tokens API from Hang — 7 operation(s) for tokens.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/hang-tokens-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-users-api
  name: Hang Users API
  description: The Users API from Hang — 1 operation(s) for users.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/hang-users-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
- aid: hang:hang-wallet-integration-api
  name: Hang Wallet Integration API
  description: The Wallet Integration API from Hang — 2 operation(s) for wallet integration.
  humanURL: https://docs.hang.com/hang-platform
  baseURL: https://loyalty.hang.xyz/partner-api
  tags:
  - Wallet Integration
  properties:
  - type: OpenAPI
    url: openapi/hang-wallet-integration-api-openapi.yml
  - type: APIReference
    url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
  - type: Documentation
    url: https://docs.hang.com/hang-platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: TrustCenter
  url: security/hang-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/hang-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/hang-domain-security.yml
- type: Authentication
  url: authentication/hang-authentication.yml
- type: Website
  url: https://www.hang.com
- type: DeveloperPortal
  url: https://docs.hang.com/hang-platform
- type: Documentation
  url: https://docs.hang.com/hang-platform
- type: APIReference
  url: https://app.swaggerhub.com/apis/Hang.xyz/hang_partner_api/2023.09.07
- type: GettingStarted
  url: https://docs.hang.com/hang-platform/api-usage/creating-program-memberships-for-new-users
- type: Integrations
  url: https://www.hang.com/integrations
- type: StatusPage
  url: https://status.hang.com
- type: SignUp
  url: https://copilot.hang.com/login
- type: Login
  url: https://copilot.hang.com/login
- type: Pricing
  url: https://www.hang.com/#pricing
- type: TermsOfService
  url: https://www.hang.com/terms
- type: PrivacyPolicy
  url: https://www.hang.com/privacy
- type: Security
  url: https://www.hang.com/security
- type: Compliance
  url: https://www.hang.com/security
- type: LLMsTxt
  url: llms/hang-llms.txt
- type: MCPServer
  url: mcp/hang-mcp.yml
- type: ErrorCatalog
  url: errors/hang-problem-types.yml
- type: Conventions
  url: conventions/hang-conventions.yml
- type: Idempotency
  url: conventions/hang-conventions.yml
- type: Lifecycle
  url: lifecycle/hang-lifecycle.yml
- type: Conformance
  url: conformance/hang-conformance.yml
- type: DataModel
  url: data-model/hang-data-model.yml
- type: Webhooks
  url: asyncapi/hang-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  url: overlays/hang-partner-api-overlay.yaml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence