Heyo website screenshot

Heyo

Heyo is a social marketing platform for building and running online promotions such as sweepstakes, contests, giveaways, quizzes, and coupons. Businesses use Heyo's drag-and-drop campaign builder and landing pages to create interactive campaign apps that publish to the web, mobile, and social networks including Facebook, Instagram, and Twitter. It is used to grow email marketing lists, generate sales leads, acquire new customers, reward existing customers, and increase social followers, with templated promotion apps and a free trial. Heyo is a portfolio company of 500 Global and was acquired by Votigo, Inc. in January 2016, continuing to operate as a stand-alone self-serve brand. Heyo publishes no public API, SDK or developer portal; the product is used entirely through the web dashboard at platform.heyo.com.

Heyo is profiled on the APIs.io network. Tagged areas include Company, Marketing, Social Media, Promotions, and Contests.

Heyo’s developer surface includes pricing, signup flow, support, engineering blog, and 8 more developer resources.

22.3/100 emerging ▲ 8.4 Agent 3/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
AccessPaidFree trial⚡ Free to try
0 APIs
CompanyMarketingSocial MediaPromotionsContestsSweepstakesGiveawaysLead GenerationEmail MarketingCampaigns

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 22.3/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 15.3 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 5.7 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 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
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/heyo: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Pricing Plans 1

Published pricing tiers and plan structures.

Heyo Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Heyo Rate Limits

0 limits

RATE LIMITS

Security Posture 1

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

Heyo Domain Security

TLSv1.2 · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Access & Security 1

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: heyo
accessModel:
  pricing: paid
  onboarding: self-service
  trial: true
  try_now: true
  public: true
  label: Self-service SaaS, no API
  confidence: high
  source:
  - https://heyo.com/pricing/
  - https://platform.heyo.com/register
  generated: '2026-08-13'
  method: searched
  note: Product access is self-serve (7-day free trial, no credit card, then $45-$249/mo). There is no API access model of
    any kind — Heyo publishes no public API.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/heyo.png
name: Heyo
description: Heyo is a social marketing platform for building and running online promotions such as sweepstakes, contests,
  giveaways, quizzes, and coupons. Businesses use Heyo's drag-and-drop campaign builder and landing pages to create interactive
  campaign apps that publish to the web, mobile, and social networks including Facebook, Instagram, and Twitter. It is used
  to grow email marketing lists, generate sales leads, acquire new customers, reward existing customers, and increase social
  followers, with templated promotion apps and a free trial. Heyo is a portfolio company of 500 Global and was acquired by
  Votigo, Inc. in January 2016, continuing to operate as a stand-alone self-serve brand. Heyo publishes no public API, SDK
  or developer portal; the product is used entirely through the web dashboard at platform.heyo.com.
url: https://raw.githubusercontent.com/api-evangelist/heyo/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
x-acquired-by:
  company: Votigo, Inc.
  website: https://www.votigo.com
  date: '2016-01-04'
  evidence: platform.heyo.com footer reads "2010 - 2026 All Rights Reserved, a Votigo Company"
  note: 'OWNERSHIP BOUNDARY — Votigo markets an enterprise "Developer API" at www.votigo.com/technology/developer-api with
    a base of api.votigo.com. That contract belongs to VOTIGO: the page describes the Votigo platform, never mentions Heyo,
    and api.votigo.com is not reachable anonymously (connection timeout). It is deliberately NOT catalogued against Heyo.
    Heyo operates as a stand-alone brand with no API surface of its own on any heyo.com host.'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Marketing
- Social Media
- Promotions
- Contests
- Sweepstakes
- Giveaways
- Lead Generation
- Email Marketing
- Campaigns
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/heyo-domain-security.yml
- type: Website
  url: https://heyo.com
- type: Pricing
  url: https://heyo.com/pricing/
- type: TermsOfService
  url: https://heyo.com/terms/
- type: PrivacyPolicy
  url: https://heyo.com/privacy/
- type: Login
  url: https://platform.heyo.com/login
- type: SignUp
  url: https://platform.heyo.com/register
- type: Support
  url: https://support.heyo.com/
- type: Blog
  url: https://blog.heyo.com/
- type: Plans
  url: plans/heyo-plans-pricing.yml
- type: RateLimits
  url: rate-limits/heyo-rate-limits.yml
- type: LLMsTxt
  url: llms/heyo-llms.txt
x-enrichment:
  date: '2026-08-13'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: Heyo ships only an end-user campaign builder — the words "Developer API" appear once on the heyo.com homepage as
    static headline copy with no link behind them, while /api, /developer, /developers, /docs and /api-docs all 404 and api.heyo.com,
    developer.heyo.com and docs.heyo.com do not resolve in DNS.
  evidence:
  - url: https://heyo.com/developer
    status: 404
  - url: https://heyo.com/api-docs
    status: 404
  - url: https://heyo.com/.well-known/api-catalog
    status: 404
  - url: https://heyo.com/pricing/
    status: 200
  checked: '2026-08-13'