Mysten Labs

Mysten Labs is the web3 infrastructure company that created Sui, a Layer 1 blockchain and smart-contract platform built on the Move programming language, and Walrus, a decentralized blob-storage network coordinated on Sui. Mysten Labs publishes the Sui developer platform: a JSON-RPC (OpenRPC) API, a GraphQL RPC API, and a gRPC (Protobuf) API for reading chain state, querying objects and events, and executing transactions, together with first-party TypeScript, Rust, and Move SDKs, the `sui` command-line interface, dApp Kit, and zkLogin/Enoki authentication tooling. The public full-node RPC endpoints are open (no API key), and the platform is fully open source under Apache 2.0.

Mysten Labs publishes 3 APIs on the APIs.io network. Tagged areas include Company, Blockchain, Web3, Sui, and Move.

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

Mysten Labs’ developer surface includes documentation, API reference, getting-started guide, engineering blog, authentication, changelog, CLI, and 24 more developer resources.

40.4/100 thin ▬ flat Agent 43/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessOpen
3 APIs 1 MCP Servers
CompanyBlockchainWeb3SuiMoveJSON-RPCGraphQLgRPCSDKSmart ContractsDecentralized StorageCryptocurrency

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 40.4/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 16.5 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 8.2 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 43/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 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 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
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/mysten-labs: 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 3

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

Sui JSON-RPC API

The Sui full-node JSON-RPC API (OpenRPC 1.2.6) for reading objects, coins, balances, events, checkpoints, dynamic fields, and system state, and for dry-running/executing transac...

Sui GraphQL RPC API

The Sui GraphQL RPC API — a GraphQL interface over Sui network data (objects, transactions, events, checkpoints, coins, name service) served from indexed full-node data. Recomme...

Sui gRPC API

The Sui full-node gRPC API (Protobuf, sui.rpc.v2) exposing LedgerService, StateService, TransactionExecutionService, MovePackageService, SignatureVerificationService, and Subscr...

MCP Servers 1

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

Event Specifications 1

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

Security Posture 3

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

Mysten Labs Authentication

none · 1 scheme

SECURITY

Mysten Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Mysten Labs Vulnerability Disclosure

contact published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Company 2

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: mysten-labs
name: Mysten Labs
description: 'Mysten Labs is the web3 infrastructure company that created Sui, a Layer 1 blockchain and smart-contract platform
  built on the Move programming language, and Walrus, a decentralized blob-storage network coordinated on Sui. Mysten Labs
  publishes the Sui developer platform: a JSON-RPC (OpenRPC) API, a GraphQL RPC API, and a gRPC (Protobuf) API for reading
  chain state, querying objects and events, and executing transactions, together with first-party TypeScript, Rust, and Move
  SDKs, the `sui` command-line interface, dApp Kit, and zkLogin/Enoki authentication tooling. The public full-node RPC endpoints
  are open (no API key), and the platform is fully open source under Apache 2.0.'
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/MystenLabs
url: https://raw.githubusercontent.com/api-evangelist/mysten-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- lightspeed-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 21
  pass: local-v1
tags:
- Company
- Blockchain
- Web3
- Sui
- Move
- JSON-RPC
- GraphQL
- gRPC
- SDK
- Smart Contracts
- Decentralized Storage
- Cryptocurrency
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Sui JSON-RPC API
  description: The Sui full-node JSON-RPC API (OpenRPC 1.2.6) for reading objects, coins, balances, events, checkpoints, dynamic
    fields, and system state, and for dry-running/executing transaction blocks. 56 methods across the sui_, suix_, and unsafe_
    namespaces. Deprecated in favor of gRPC / GraphQL RPC (migration targeted July 2026).
  humanURL: https://docs.sui.io/references/sui-api
  baseURL: https://fullnode.mainnet.sui.io:443
  tags:
  - JSON-RPC
  - OpenRPC
  - Blockchain
  properties:
  - type: OpenRPC
    url: openrpc/mysten-labs-sui-jsonrpc-openrpc.json
  - type: Documentation
    url: https://docs.sui.io/references/sui-api
- name: Sui GraphQL RPC API
  description: The Sui GraphQL RPC API — a GraphQL interface over Sui network data (objects, transactions, events, checkpoints,
    coins, name service) served from indexed full-node data. Recommended replacement for JSON-RPC.
  humanURL: https://docs.sui.io/references/sui-graphql
  baseURL: https://graphql.mainnet.sui.io/graphql
  tags:
  - GraphQL
  - Blockchain
  properties:
  - type: Documentation
    url: https://docs.sui.io/references/sui-graphql
- name: Sui gRPC API
  description: The Sui full-node gRPC API (Protobuf, sui.rpc.v2) exposing LedgerService, StateService, TransactionExecutionService,
    MovePackageService, SignatureVerificationService, and SubscriptionService for high-throughput, typed access to chain data
    and transaction execution. Recommended replacement for JSON-RPC.
  humanURL: https://docs.sui.io/references/fullnode-protocol
  baseURL: https://fullnode.mainnet.sui.io:443
  tags:
  - gRPC
  - Protobuf
  - Blockchain
  properties:
  - type: Protobuf
    url: grpc/sui/rpc/v2/ledger_service.proto
  - type: Documentation
    url: https://docs.sui.io/references/fullnode-protocol
common:
- type: DeveloperPortal
  url: https://docs.sui.io
- type: Documentation
  url: https://docs.sui.io
- type: APIReference
  url: https://docs.sui.io/references/sui-api
- type: GettingStarted
  url: https://docs.sui.io/guides/developer/getting-started
- type: GitHubOrganization
  url: https://github.com/MystenLabs
- type: Blog
  url: https://blog.sui.io
- type: Website
  url: https://mystenlabs.com
- type: StatusPage
  url: https://status.sui.io
- type: LLMsTxt
  url: llms/mysten-labs-llms.txt
- type: WellKnown
  url: well-known/mysten-labs-well-known.yml
- type: APICatalog
  url: well-known/mysten-labs-api-catalog.json
- type: Packages
  url: packages/mysten-labs-packages.yml
- type: SDKs
  url: packages/mysten-labs-packages.yml
- type: MCPServer
  url: mcp/mysten-labs-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Protobuf
  url: grpc/sui/rpc/v2/ledger_service.proto
- type: Conformance
  url: conformance/mysten-labs-conformance.yml
- type: Authentication
  url: authentication/mysten-labs-authentication.yml
- type: Lifecycle
  url: lifecycle/mysten-labs-lifecycle.yml
- type: Deprecation
  url: lifecycle/mysten-labs-lifecycle.yml
- type: ChangeLog
  url: changelog/mysten-labs-changelog.yml
- type: CLI
  url: cli/mysten-labs-cli.yml
- type: Conventions
  url: conventions/mysten-labs-conventions.yml
- type: ErrorCatalog
  url: errors/mysten-labs-error-codes.yml
- type: DataModel
  url: data-model/mysten-labs-data-model.yml
- type: Webhooks
  url: asyncapi/mysten-labs-subscriptions.yml
- type: DomainSecurity
  url: security/mysten-labs-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/mysten-labs-vulnerability-disclosure.yml
- type: Security
  url: https://github.com/MystenLabs/sui/blob/main/SECURITY.md
- type: Sandbox
  url: sandbox/mysten-labs-sandbox.yml
- type: Components
  url: components/mysten-labs-components.yml