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 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

46.6/100 developing ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

7 APIs 1 MCP Servers

Company Consumer Blockchain Web3 Gaming NFT Wallets Cryptocurrency Smart Contracts Marketplace Developer Tools Ethereum

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 46.6/100 · developing

Contract Quality 11.4 / 21

Developer Ergonomics 10.8 / 17

Access Clarity 5.4 / 17

Operational Transparency 3.8 / 11

Contract Governance 0.5 / 10

Discoverability 6.9 / 9

Regulatory Posture 5.9 / 15

Agent readiness — 28/100 · 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 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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.

MCP Servers 1

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

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

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

LLMsTxt

MCPServer

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Components

DataModel

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

StatusPage

Deprecation

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

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

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
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: 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: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Consumer
- Blockchain
- Web3
- Gaming
- NFT
- Wallets
- Cryptocurrency
- Smart Contracts
- Marketplace
- Developer Tools
- Ethereum
tags_raw:
- 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
  tags_raw:
  - 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
  tags_raw:
  - 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
  tags_raw:
  - secret
  properties:
  - type: OpenAPI
    url: openapi/horizon-blockchain-games-secret-api-openapi.yml
common:
- type: Overlay
  url: overlays/horizon-blockchain-games-analytics-overlay.yaml
- 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

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