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 is listed with 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 13 more developer resources.

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29.6/100 thin ▬ flat Agent 3/100 human only Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

Company Data Orchestration Data Caching AI Infrastructure Machine Learning Analytics Distributed Storage Object Storage S3 Open Source

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 29.6/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 10.9 / 17

Access Clarity 7.6 / 17

Operational Transparency 2.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 3/100 · human only

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 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

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 Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

12 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
Contract Governance scores 0.0 — up to +12.0 composite points
Access Clarity scores 44.7 — up to +11.1 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/alluxio/apis.yml: open an issue on github.com/api-evangelist/alluxio 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
MLOps and AI/ML Infrastructure (LF AI & Data, MLPerf, Kubeflow)	standard	47.9	-	-

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.

APIs 1

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

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....

Pricing Plans 1

Published pricing tiers and plan structures.

Alluxio Plans Pricing

2 plans

PLANS

Security Posture 2

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

Alluxio Authentication

http-signature/none/tls-mutual · 4 schemes

SECURITY

Alluxio Domain Security

TLSv1.3 · HSTS

SECURITY

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 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Source (apis.yml)

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
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
  - security
  generated: '2026-09-03'
  method: derived
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: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-17
tags:
- Company
- Data Orchestration
- Data Caching
- AI Infrastructure
- Machine Learning
- Analytics
- Distributed Storage
- Object Storage
- S3
- Open Source
tags_raw:
- Company
- Data Orchestration
- Data Caching
- AI Infrastructure
- Machine Learning
- Analytics
- Distributed Storage
- Object Storage
- S3
- Open Source
- Machine-Learning
- 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: Plans
  url: plans/alluxio-plans-pricing.yml
- url: https://www.alluxio.io/blog/rss.xml
  type: BlogRSS
- 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

Alluxio API — frequently asked questions

Does Alluxio have an API?

Yes. APIs.io lists 1 API from Alluxio, including Alluxio S3 API.

How do I authenticate with the Alluxio API?

Alluxio uses bearer-token authentication (http-signature/none/tls-mutual · 4 schemes). The details are profiled on APIs.io as Alluxio Authentication.

How much does the Alluxio API cost?

APIs.io lists 2 pricing plans for Alluxio, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Alluxio API ready for AI agents?

Alluxio has a Kin Score of 29.6 out of 100 (thin) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-10-31.

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