Horizon Blockchain Games website screenshot

Horizon Blockchain Games

Horizon Blockchain Games is the web3 gaming studio and infrastructure company behind Skyweaver and the Sequence platform (sequence.xyz / 0xsequence) — a modular, open-source web3 development stack for onchain apps, DeFi, stablecoins, and games. Sequence unifies smart-contract wallets, embedded Wallet-as-a-Service, 1-click cross-chain payments, an NFT marketplace, a multi-chain indexer, token metadata, a transaction relayer with gas sponsorship, a node gateway, analytics, and SDKs for Web, Unity, Unreal, React Native, and Go. Its APIs are webrpc JSON-RPC-over-HTTP services spanning 40+ EVM chains, authenticated with project access keys. Sequence was acquired by Polygon Labs. This profile was enriched by the API Evangelist pipeline from Sequence's public developer surface.

Horizon Blockchain Games publishes 5 APIs on the APIs.io network, including Analytics API, Marketplace API, public API, and 2 more. Tagged areas include Company, Consumer, Blockchain, Web3, and Gaming.

The Horizon Blockchain Games catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Horizon Blockchain Games’ developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub
51.6/100 developing ▬ flat Agent 44/100 agent ready Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1
AccessSelf serve
5 APIs 1 MCP Servers
CompanyConsumerBlockchainWeb3GamingNFTWalletCryptocurrencySmart ContractsMarketplaceDeveloper ToolsEthereum

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1
Composite quality — 51.6/100 · developing
Contract Quality 14.7 / 25
Developer Ergonomics 13.8 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 6.8 / 13
Governance 1.4 / 12
Discoverability 8.2 / 10
Agent readiness — 44/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 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/horizon-blockchain-games: 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 5

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

Horizon Blockchain Games Analytics API

The Analytics API from Horizon Blockchain Games — 177 operation(s) for analytics.

Horizon Blockchain Games Marketplace API

The Marketplace API from Horizon Blockchain Games — 34 operation(s) for marketplace.

Horizon Blockchain Games public API

Endpoints accessible by passing your project-access-key in the header. This is injected whenever you login automatically.

Horizon Blockchain Games Rpc API

The Rpc API from Horizon Blockchain Games — 32 operation(s) for rpc.

Horizon Blockchain Games secret API

Endpoints that require a Sequence service token intended to be secret. You can manually generate one on Sequence Builder and pass it as a Bearer Token.

MCP Servers 1

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

horizon-blockchain-games-mcp.yml

MCP SERVER

Event Specifications 1

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

Horizon Blockchain Games Webhooks

ASYNCAPI

Security Posture 2

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

Horizon Blockchain Games Authentication

apiKey/http · 2 schemes

SECURITY

Horizon Blockchain Games Domain Security

TLSv1.2 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Horizon Blockchain Games Agentic Access

302 operations · 302 acting · 1 human-in-the-loop

302 operations · 302 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 Components
Components
 DataModel
DataModel
 Webhooks
Webhooks

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Support
Support
 StatusPage
StatusPage
 Deprecation
Deprecation
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: horizon-blockchain-games
name: Horizon Blockchain Games
description: Horizon Blockchain Games is the web3 gaming studio and infrastructure company behind Skyweaver and the Sequence
  platform (sequence.xyz / 0xsequence) — a modular, open-source web3 development stack for onchain apps, DeFi, stablecoins,
  and games. Sequence unifies smart-contract wallets, embedded Wallet-as-a-Service, 1-click cross-chain payments, an NFT marketplace,
  a multi-chain indexer, token metadata, a transaction relayer with gas sponsorship, a node gateway, analytics, and SDKs for
  Web, Unity, Unreal, React Native, and Go. Its APIs are webrpc JSON-RPC-over-HTTP services spanning 40+ EVM chains, authenticated
  with project access keys. Sequence was acquired by Polygon Labs. This profile was enriched by the API Evangelist pipeline
  from Sequence's public developer surface.
url: https://raw.githubusercontent.com/api-evangelist/horizon-blockchain-games/refs/heads/main/apis.yml
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
image: https://sequence.xyz/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- initialized-capital
x-tier: active
x-tier-reason: enriched-provider
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Consumer
- Blockchain
- Web3
- Gaming
- NFT
- Wallet
- Cryptocurrency
- Smart Contracts
- Marketplace
- Developer Tools
- Ethereum
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: horizon-blockchain-games:horizon-blockchain-games-analytics-api
  name: Horizon Blockchain Games Analytics API
  description: The Analytics API from Horizon Blockchain Games — 177 operation(s) for analytics.
  humanURL: https://docs.sequence.xyz/api-references/indexer/overview
  baseURL: https://mainnet-indexer.sequence.app
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-analytics-api-openapi.yml
- aid: horizon-blockchain-games:horizon-blockchain-games-marketplace-api
  name: Horizon Blockchain Games Marketplace API
  description: The Marketplace API from Horizon Blockchain Games — 34 operation(s) for marketplace.
  humanURL: https://docs.sequence.xyz/api-references/indexer/overview
  baseURL: https://mainnet-indexer.sequence.app
  tags:
  - Marketplace
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-marketplace-api-openapi.yml
- aid: horizon-blockchain-games:horizon-blockchain-games-public-api
  name: Horizon Blockchain Games public API
  description: Endpoints accessible by passing your project-access-key in the header. This is injected whenever you login
    automatically.
  humanURL: https://docs.sequence.xyz/api-references/indexer/overview
  baseURL: https://mainnet-indexer.sequence.app
  tags:
  - public
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-public-api-openapi.yml
- aid: horizon-blockchain-games:horizon-blockchain-games-rpc-api
  name: Horizon Blockchain Games Rpc API
  description: The Rpc API from Horizon Blockchain Games — 32 operation(s) for rpc.
  humanURL: https://docs.sequence.xyz/api-references/indexer/overview
  baseURL: https://mainnet-indexer.sequence.app
  tags:
  - Rpc
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-rpc-api-openapi.yml
- aid: horizon-blockchain-games:horizon-blockchain-games-secret-api
  name: Horizon Blockchain Games secret API
  description: Endpoints that require a Sequence service token intended to be secret. You can manually generate one on Sequence
    Builder and pass it as a Bearer Token.
  humanURL: https://docs.sequence.xyz/api-references/indexer/overview
  baseURL: https://mainnet-indexer.sequence.app
  tags:
  - secret
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-secret-api-openapi.yml
common:
- type: Website
  url: https://horizongames.net/
- type: DeveloperPortal
  url: https://sequence.build
- type: Documentation
  url: https://docs.sequence.xyz
- type: APIReference
  url: https://docs.sequence.xyz/api-references/overview
- type: GettingStarted
  url: https://docs.sequence.xyz/solutions/builder/getting-started
- type: Support
  url: https://support.sequence.xyz/en/
- type: Blog
  url: https://sequence.xyz/blog
- type: GitHubOrganization
  url: https://github.com/0xsequence
- type: Pricing
  url: https://sequence.xyz/pricing
- type: SignUp
  url: https://sequence.build
- type: TermsOfService
  url: https://sequence.xyz/terms
- type: PrivacyPolicy
  url: https://sequence.xyz/privacy
- type: StatusPage
  url: https://status.sequence.info
- type: Authentication
  url: authentication/horizon-blockchain-games-authentication.yml
- type: DomainSecurity
  url: security/horizon-blockchain-games-domain-security.yml
- type: AgenticAccess
  url: agentic-access/horizon-blockchain-games-agentic-access.yml
- type: Packages
  url: packages/horizon-blockchain-games-packages.yml
- type: SDKs
  url: packages/horizon-blockchain-games-packages.yml
- type: LLMsTxt
  url: llms/horizon-blockchain-games-llms.txt
- type: Conformance
  url: conformance/horizon-blockchain-games-conformance.yml
- type: ErrorCatalog
  url: errors/horizon-blockchain-games-error-codes.yml
- type: Lifecycle
  url: lifecycle/horizon-blockchain-games-lifecycle.yml
- type: Deprecation
  url: lifecycle/horizon-blockchain-games-lifecycle.yml
- type: Conventions
  url: conventions/horizon-blockchain-games-conventions.yml
- type: ChangeLog
  url: changelog/horizon-blockchain-games-changelog.yml
- type: Sandbox
  url: sandbox/horizon-blockchain-games-sandbox.yml
- type: Components
  url: components/horizon-blockchain-games-components.yml
- type: DataModel
  url: data-model/horizon-blockchain-games-data-model.yml
- type: MCPServer
  url: mcp/horizon-blockchain-games-mcp.yml
- type: Webhooks
  url: asyncapi/horizon-blockchain-games-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence