Sky Mavis

Sky Mavis is the studio behind Axie Infinity and Ronin, an EVM blockchain crafted for developers building games with player-owned economies. Its developer platform exposes a set of API-gateway products for building on Ronin: the Skynet Web3 API (query accounts, NFTs, tokens, blocks, contracts and transactions), a Ronin JSON-RPC API for node connectivity, the Axie Infinity Origins and AXP game-data APIs, Ronin Market and Ronin Store partner APIs, and Ronin Waypoint, an OAuth2/OIDC account service and keyless wallet for game onboarding. Access to gateway products is authenticated with an X-API-KEY issued from the Ronin Developer Console, while public JSON-RPC and the Waypoint OIDC surface are openly reachable. Official SDKs ship for JavaScript/TypeScript, Unity, Android and iOS.

Sky Mavis is listed with 3 APIs on the APIs.io network. Tagged areas include Company, Blockchain, Web3, Gaming, and NFT.

Sky Mavis’ developer surface includes documentation, API reference, getting-started guide, engineering blog, signup flow, authentication, sandbox, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.1/100 thin ▬ flat Agent 15/100 agent aware Front door AI 1/6 silent Heartbeat 64/100 slowing saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

3 APIs 1 Agent Skills

Company Blockchain Web3 Gaming NFT Wallets JSON-RPC Cryptocurrency Developer Tools

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 33.1/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 11.6 / 17

Access Clarity 5.8 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.5 / 10

Discoverability 6.7 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 15/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 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 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Contract Governance scores 4.5 — up to +11.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/sky-mavis/apis.yml: open an issue on github.com/api-evangelist/sky-mavis to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	mixed	44.1	-	1
Browser Extension Stores (company-published Firefox add-ons; Chrome Web Store unreadable)	mixed	44.1	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

JSON RPC

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 3

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

Ronin Skynet Web3 API

REST Web3 data API on the Ronin blockchain — query accounts, NFTs, tokens, collections, blocks, smart contracts and transactions. Authenticated with an X-API-KEY issued from the...

Ronin JSON-RPC API

Ethereum-compatible JSON-RPC endpoint for the Ronin network — read chain state, submit transactions, call contracts, and subscribe to events. The public mainnet endpoint is open...

Ronin Waypoint Account Service

OAuth2 / OpenID Connect account service and keyless wallet for onboarding players into Ronin games. Discovery is published at the athena.skymavis.com issuer; supports authorizat...

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

Read Ronin chain data via JSON-RPC

AGENT SKILL

Security Posture 2

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

Sky Mavis Authentication

apiKey/oauth2/openIdConnect · 3 schemes

SECURITY

Sky Mavis Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sky Mavis Scopes

3 scopes · authorizationCode/clientCredentials

3 scopes

SCOPES

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

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Lifecycle

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: sky-mavis
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sky-mavis.png
name: Sky Mavis
description: 'Sky Mavis is the studio behind Axie Infinity and Ronin, an EVM blockchain crafted for developers building games
  with player-owned economies. Its developer platform exposes a set of API-gateway products for building on Ronin: the Skynet
  Web3 API (query accounts, NFTs, tokens, blocks, contracts and transactions), a Ronin JSON-RPC API for node connectivity,
  the Axie Infinity Origins and AXP game-data APIs, Ronin Market and Ronin Store partner APIs, and Ronin Waypoint, an OAuth2/OIDC
  account service and keyless wallet for game onboarding. Access to gateway products is authenticated with an X-API-KEY issued
  from the Ronin Developer Console, while public JSON-RPC and the Waypoint OIDC surface are openly reachable. Official SDKs
  ship for JavaScript/TypeScript, Unity, Android and iOS.'
url: https://raw.githubusercontent.com/api-evangelist/sky-mavis/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
tags:
- Company
- Blockchain
- Web3
- Gaming
- NFT
- Wallets
- JSON-RPC
- Cryptocurrency
- Developer Tools
tags_raw:
- Company
- Blockchain
- Web3
- Gaming
- NFT
- Wallet
- JSON-RPC
- Cryptocurrency
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Ronin Skynet Web3 API
  description: REST Web3 data API on the Ronin blockchain — query accounts, NFTs, tokens, collections, blocks, smart contracts
    and transactions. Authenticated with an X-API-KEY issued from the Ronin Developer Console.
  humanURL: https://docs.skymavis.com/api/web3/skynet-web-3-api
  baseURL: https://api-gateway.skymavis.com/skynet
  tags:
  - Web3
  - Blockchain
  - NFT
  properties:
  - type: Authentication
    url: authentication/sky-mavis-authentication.yml
  - type: Conventions
    url: conventions/sky-mavis-conventions.yml
- name: Ronin JSON-RPC API
  description: Ethereum-compatible JSON-RPC endpoint for the Ronin network — read chain state, submit transactions, call contracts,
    and subscribe to events. The public mainnet endpoint is openly reachable; gateway JSON-RPC requires an X-API-KEY.
  humanURL: https://docs.skymavis.com/api/rpc/ronin-json-rpc
  baseURL: https://api.roninchain.com/rpc
  tags:
  - JSON-RPC
  - Blockchain
  - EVM
- name: Ronin Waypoint Account Service
  description: OAuth2 / OpenID Connect account service and keyless wallet for onboarding players into Ronin games. Discovery
    is published at the athena.skymavis.com issuer; supports authorization_code, client_credentials, refresh_token and implicit
    grants with PKCE.
  humanURL: https://docs.skymavis.com/mavis/ronin-waypoint/overview
  baseURL: https://athena.skymavis.com
  tags:
  - OAuth
  - OpenID Connect
  - Wallets
  - Authentication
  tags_raw:
  - OAuth
  - OpenID Connect
  - Wallet
  - Authentication
  properties:
  - type: OAuthScopes
    url: scopes/sky-mavis-scopes.yml
common:
- type: Website
  url: https://skymavis.com
- type: DeveloperPortal
  url: https://developers.roninchain.com/
- type: Documentation
  url: https://docs.skymavis.com/
- type: APIReference
  url: https://docs.skymavis.com/api
- type: GettingStarted
  url: https://docs.skymavis.com/get-started
- type: GitHubOrganization
  url: https://github.com/skymavis
- type: StatusPage
  url: https://skymavis.statuspage.io/
- type: Blog
  url: https://blog.roninchain.com/
- type: TermsOfService
  url: https://cdn.skymavis.com/files/skymavis-terms-of-use-09012025.pdf
- type: PrivacyPolicy
  url: https://cdn.skymavis.com/files/skymavis-privacypolicy-10122024.pdf
- type: SignUp
  url: https://developers.roninchain.com/
- type: Packages
  url: packages/sky-mavis-packages.yml
- type: SDKs
  url: packages/sky-mavis-packages.yml
- type: WellKnown
  url: well-known/sky-mavis-well-known.yml
- type: Authentication
  url: authentication/sky-mavis-authentication.yml
- type: OAuthScopes
  url: scopes/sky-mavis-scopes.yml
- type: Conventions
  url: conventions/sky-mavis-conventions.yml
- type: Conformance
  url: conformance/sky-mavis-conformance.yml
- type: ErrorCatalog
  url: errors/sky-mavis-problem-types.yml
- type: Lifecycle
  url: lifecycle/sky-mavis-lifecycle.yml
- type: Sandbox
  url: sandbox/sky-mavis-sandbox.yml
- type: Components
  url: components/sky-mavis-components.yml
- type: X-MCPServerCandidate
  url: mcp/sky-mavis-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/sky-mavis-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/sky-mavis-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 15
  pass: local-v1

Sky Mavis API — frequently asked questions

Does Sky Mavis have an API?

Yes. APIs.io lists 3 APIs from Sky Mavis, including Ronin Skynet Web3 API, Ronin JSON-RPC API and Ronin Waypoint Account Service.

How do I authenticate with the Sky Mavis API?

Sky Mavis documents its authentication (apiKey/oauth2/openIdConnect · 3 schemes). The details are profiled on APIs.io as Sky Mavis Authentication.

Is the Sky Mavis API ready for AI agents?

Sky Mavis has a Kin Score of 33.1 out of 100 (thin) and an Agent Readiness score of 14.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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