Alluxio

Alluxio is a data platform company providing a distributed caching and data-orchestration layer that sits between compute engines and persistent storage to accelerate I/O-intensive AI/ML and analytics workloads. Its high-throughput, low-latency cache serves data to PyTorch, TensorFlow, Spark, Ray and other frameworks across AWS, GCP, Azure and Oracle Cloud, mounting underlying object and file stores (S3, GCS, Azure Blob, HDFS, OSS, COS, TOS) and exposing them through an S3-compatible REST API, a FUSE-based POSIX API, and a Python FSSpec client. The Apache-2.0 open-source project (github.com/Alluxio/alluxio) underpins the commercial Alluxio Enterprise AI product. Alluxio is a portfolio company of a16z.

Alluxio publishes 1 API on the APIs.io network. Tagged areas include Company, Data Orchestration, Data Caching, AI Infrastructure, and Machine Learning.

Alluxio’s developer surface includes documentation, getting-started guide, API reference, engineering blog, support, pricing, signup flow, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
27.2/100 emerging Agent 10/100 human only Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 0 Features
CompanyData OrchestrationData CachingAI InfrastructureMachine LearningAnalyticsDistributed StorageObject StorageS3Open Source

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 27.2/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 11.7 / 20
Commercial Clarity 4.7 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 8.0 / 10
Agent readiness — 10/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 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/alluxio: 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

Alluxio S3 API

S3-compatible REST API exposed by every Alluxio worker (HTTP port 29998, HTTPS 29996) that lets applications built for Amazon S3 read and write cached data without code changes....

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Lifecycle
Lifecycle

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

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: alluxio
name: Alluxio
description: Alluxio is a data platform company providing a distributed caching and data-orchestration layer that sits between
  compute engines and persistent storage to accelerate I/O-intensive AI/ML and analytics workloads. Its high-throughput, low-latency
  cache serves data to PyTorch, TensorFlow, Spark, Ray and other frameworks across AWS, GCP, Azure and Oracle Cloud, mounting
  underlying object and file stores (S3, GCS, Azure Blob, HDFS, OSS, COS, TOS) and exposing them through an S3-compatible
  REST API, a FUSE-based POSIX API, and a Python FSSpec client. The Apache-2.0 open-source project (github.com/Alluxio/alluxio)
  underpins the commercial Alluxio Enterprise AI product. Alluxio is a portfolio company of a16z.
url: https://raw.githubusercontent.com/api-evangelist/alluxio/refs/heads/main/apis.yml
image: https://avatars.githubusercontent.com/u/16203694?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Data Orchestration
- Data Caching
- AI Infrastructure
- Machine Learning
- Analytics
- Distributed Storage
- Object Storage
- S3
- Open Source
apis:
- name: Alluxio S3 API
  description: S3-compatible REST API exposed by every Alluxio worker (HTTP port 29998, HTTPS 29996) that lets applications
    built for Amazon S3 read and write cached data without code changes. Path-style requests only; mount points are surfaced
    as S3 buckets. Endpoint is deployment-specific (runs on the customer's self-hosted Alluxio cluster), so no public production
    baseURL exists.
  humanURL: https://documentation.alluxio.io/ee-ai-en/data-access/s3-api.md
  properties:
  - type: APIReference
    url: https://documentation.alluxio.io/ee-ai-en/data-access/s3-api.md
  - type: Authentication
    url: authentication/alluxio-authentication.yml
  - type: Conventions
    url: conventions/alluxio-conventions.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/alluxio-domain-security.yml
- type: Website
  url: https://www.alluxio.io
- type: DeveloperPortal
  url: https://documentation.alluxio.io/
- type: Documentation
  url: https://documentation.alluxio.io/ee-ai-en/
- type: GettingStarted
  url: https://documentation.alluxio.io/ee-ai-en/start.md
- type: APIReference
  url: https://documentation.alluxio.io/ee-ai-en/data-access.md
- type: Blog
  url: https://www.alluxio.io/blog
- type: GitHubOrganization
  url: https://github.com/Alluxio
- type: Support
  url: https://www.alluxio.io/community
- type: Pricing
  url: https://www.alluxio.io/pricing
- type: SignUp
  url: https://www.alluxio.io/alluxio-ai-free-trial-c
- type: Packages
  url: packages/alluxio-packages.yml
- type: SDKs
  url: packages/alluxio-packages.yml
- type: LLMsTxt
  url: llms/alluxio-llms.txt
- type: Authentication
  url: authentication/alluxio-authentication.yml
- type: Conventions
  url: conventions/alluxio-conventions.yml
- type: Lifecycle
  url: lifecycle/alluxio-lifecycle.yml
- type: ChangeLog
  url: changelog/alluxio-changelog.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence