Walrus Protocol

Walrus is a decentralized blob storage protocol built on Sui by Mysten Labs, the team behind the Sui blockchain. It provides robust, cost-effective storage for large binary objects with high-availability guarantees using Red Stuff erasure coding across a permissionless set of storage nodes. Data is content-addressed, immutable, verifiable without trusting any single provider, and portable across apps, providers, and AI agents. Developers interact through the `walrus` client CLI, a TypeScript SDK, and an HTTP API served by publisher (write) and aggregator (read) daemons, with storage paid in WAL and on-chain coordination in SUI. Walrus also powers Walrus Sites (decentralized web hosting) and Walrus Memory (a portable memory layer for AI agents). Backed by Electric Capital.

Walrus Protocol publishes 1 API on the APIs.io network: routes API. Tagged areas include Company, Infrastructure, Storage, Decentralized Storage, and Blockchain.

Walrus Protocol’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, pricing, changelog, and 26 more developer resources.

🌐 Visit website 📡 Source on GitHub

48.2/100 developing ▬ flat Agent 42/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessOpen

1 APIs 1 MCP Servers

CompanyInfrastructureStorageDecentralized StorageBlockchainWeb3DataArtificial IntelligenceSui

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 48.2/100 · developing

Contract Quality 12.1 / 25

Developer Ergonomics 14.6 / 20

Access Clarity 6.3 / 20

Operational Transparency 4.4 / 13

Contract Governance 2.0 / 12

Discoverability 8.7 / 10

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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/walrus-protocol: 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 1

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.

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

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

LLMsTxt

WellKnown

MCPServer

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

DataModel

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

Support

StatusPage

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

Other 3

Properties that don't map to a standard resource type

Overlay

Overlay

Whitepaper

Whitepaper

APICatalog

APICatalog

Source (apis.yml)

aid: walrus-protocol
name: Walrus Protocol
description: Walrus is a decentralized blob storage protocol built on Sui by Mysten Labs, the team behind the Sui blockchain.
  It provides robust, cost-effective storage for large binary objects with high-availability guarantees using Red Stuff erasure
  coding across a permissionless set of storage nodes. Data is content-addressed, immutable, verifiable without trusting any
  single provider, and portable across apps, providers, and AI agents. Developers interact through the `walrus` client CLI,
  a TypeScript SDK, and an HTTP API served by publisher (write) and aggregator (read) daemons, with storage paid in WAL and
  on-chain coordination in SUI. Walrus also powers Walrus Sites (decentralized web hosting) and Walrus Memory (a portable
  memory layer for AI agents). Backed by Electric Capital.
url: https://raw.githubusercontent.com/api-evangelist/walrus-protocol/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- electric-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1
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://walrus.xyz/images/open-graph/og-home.jpg
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Infrastructure
- Storage
- Decentralized Storage
- Blockchain
- Web3
- Data
- Artificial Intelligence
- Sui
tags_raw:
- Company
- Infrastructure
- Storage
- Decentralized Storage
- Blockchain
- Web3
- Data
- AI
- Sui
apis:
- aid: walrus-protocol:walrus-protocol-routes-api
  name: Walrus Protocol routes API
  description: The routes API from Walrus Protocol — 9 operation(s) for routes.
  humanURL: https://docs.wal.app/docs/http-api/reading-blobs
  baseURL: https://aggregator.walrus-mainnet.walrus.space
  tags:
  - Routes
  tags_raw:
  - routes
  properties:
  - type: OpenAPI
    url: openapi/walrus-protocol-routes-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/walrus-protocol-aggregator-overlay.yaml
- type: DomainSecurity
  url: security/walrus-protocol-domain-security.yml
- type: Website
  url: https://www.walrus.xyz/
- type: DeveloperPortal
  url: https://docs.wal.app/
- type: Documentation
  url: https://docs.wal.app/
- type: APIReference
  url: https://docs.wal.app/docs/http-api
- type: GettingStarted
  url: https://docs.wal.app/docs/getting-started
- type: Blog
  url: https://blog.walrus.xyz/
- type: GitHubOrganization
  url: https://github.com/MystenLabs
- type: Support
  url: https://discord.gg/walrusprotocol
- type: Pricing
  url: https://costcalculator.wal.app/
- type: TermsOfService
  url: https://docs.wal.app/docs/legal/walrus_general_tos
- type: PrivacyPolicy
  url: https://docs.wal.app/docs/legal/privacy
- type: StatusPage
  url: https://status.walrus.xyz
- type: Whitepaper
  url: https://docs.wal.app/walrus.pdf
- type: ChangeLog
  url: https://github.com/MystenLabs/walrus/releases
- type: ChangeLog
  url: changelog/walrus-protocol-changelog.yml
- type: LLMsTxt
  url: llms/walrus-protocol-llms.txt
- type: WellKnown
  url: well-known/walrus-protocol-well-known.yml
- type: APICatalog
  url: well-known/walrus-protocol-api-catalog.json
- type: Packages
  url: packages/walrus-protocol-packages.yml
- type: SDKs
  name: TypeScript SDK
  url: packages/walrus-protocol-packages.yml
- type: CLI
  url: cli/walrus-protocol-cli.yml
- type: MCPServer
  url: mcp/walrus-protocol-mcp.yml
- type: Authentication
  url: authentication/walrus-protocol-authentication.yml
- type: Conventions
  url: conventions/walrus-protocol-conventions.yml
- type: Idempotency
  url: conventions/walrus-protocol-conventions.yml
- type: ErrorCatalog
  url: errors/walrus-protocol-problem-types.yml
- type: Lifecycle
  url: lifecycle/walrus-protocol-lifecycle.yml
- type: DataModel
  url: data-model/walrus-protocol-data-model.yml
- type: Conformance
  url: conformance/walrus-protocol-conformance.yml
- type: Sandbox
  url: sandbox/walrus-protocol-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml

Walrus Protocol

Kin Score

APIs 1

Walrus Protocol routes API

Open Collections 2

API Collection

Walrus Aggregator routes API