PredictionIO

Apache PredictionIO is an open source machine learning server that lets developers and data scientists build, deploy, and serve predictive engines as web services. Originally the commercial product prediction.io from TappingStone, it was acquired by Salesforce in 2016, donated to the Apache Software Foundation, and graduated as a top-level Apache project before being retired to the Apache Attic. It exposes a REST-based Event Server for collecting event data and an Engine Query API for real-time predictions, built on Apache Spark, MLlib, HBase, Elasticsearch, and Akka HTTP, with official SDKs for Python, Ruby, PHP, and Scala/Java. This profile enriches the original portfolio-lead stub.

PredictionIO publishes 2 APIs on the APIs.io network. Tagged areas include Company, Machine Learning, Artificial Intelligence, Predictive Analytics, and Recommendation Engine.

PredictionIO’s developer surface includes documentation, API reference, getting-started guide, authentication, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
18.4/100 emerging ▬ flat Agent 14/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
2 APIs
CompanyMachine LearningArtificial IntelligencePredictive AnalyticsRecommendation EngineOpen SourceApacheEvent ServerRetired

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 18.4/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 8.7 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 1.7 / 13
Governance 0.0 / 12
Discoverability 8.0 / 10
Agent readiness — 14/100 · 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 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/predictionio: 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 2

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

PredictionIO Event Server API

REST API for importing and querying event data used to train prediction engines. Authenticated with a per-app access key passed as the accessKey query parameter; JSON request/re...

PredictionIO Engine Query API

REST API exposed by a deployed prediction engine that responds to prediction queries in real time (POST /queries.json). Unauthenticated by default.

Security Posture 1

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

Predictionio Authentication

2 schemes

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown

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
 SDKs
SDKs
 Packages
Packages

Access & Security 1

Authentication, authorization, and security posture

Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Deprecation
Deprecation

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: predictionio
name: PredictionIO
description: Apache PredictionIO is an open source machine learning server that lets developers and data scientists build,
  deploy, and serve predictive engines as web services. Originally the commercial product prediction.io from TappingStone,
  it was acquired by Salesforce in 2016, donated to the Apache Software Foundation, and graduated as a top-level Apache project
  before being retired to the Apache Attic. It exposes a REST-based Event Server for collecting event data and an Engine Query
  API for real-time predictions, built on Apache Spark, MLlib, HBase, Elasticsearch, and Akka HTTP, with official SDKs for
  Python, Ruby, PHP, and Scala/Java. This profile enriches the original portfolio-lead stub.
url: https://raw.githubusercontent.com/api-evangelist/predictionio/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
image: https://predictionio.apache.org/images/logos/logo.png
tags:
- Company
- Machine Learning
- Artificial Intelligence
- Predictive Analytics
- Recommendation Engine
- Open Source
- Apache
- Event Server
- Retired
apis:
- name: PredictionIO Event Server API
  description: REST API for importing and querying event data used to train prediction engines. Authenticated with a per-app
    access key passed as the accessKey query parameter; JSON request/response with .json path suffixes.
  humanURL: https://predictionio.apache.org/datacollection/eventapi/
  baseURL: http://localhost:7070
  tags:
  - Event Server
  - Data Collection
  properties:
  - type: Documentation
    url: https://predictionio.apache.org/datacollection/eventapi/
  - type: Authentication
    url: authentication/predictionio-authentication.yml
  - type: Conventions
    url: conventions/predictionio-conventions.yml
- name: PredictionIO Engine Query API
  description: REST API exposed by a deployed prediction engine that responds to prediction queries in real time (POST /queries.json).
    Unauthenticated by default.
  humanURL: https://predictionio.apache.org/deploy/
  baseURL: http://localhost:8000
  tags:
  - Predictions
  - Engine
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://predictionio.apache.org
- type: Documentation
  url: https://predictionio.apache.org/start/
- type: APIReference
  url: https://predictionio.apache.org/datacollection/eventapi/
- type: GettingStarted
  url: https://predictionio.apache.org/start/
- type: GitHubOrganization
  url: https://github.com/apache/predictionio
- type: SDKs
  url: packages/predictionio-packages.yml
- type: Packages
  url: packages/predictionio-packages.yml
- type: Authentication
  url: authentication/predictionio-authentication.yml
- type: Conventions
  url: conventions/predictionio-conventions.yml
- type: Lifecycle
  url: lifecycle/predictionio-lifecycle.yml
- type: Deprecation
  url: lifecycle/predictionio-lifecycle.yml
- type: WellKnown
  url: well-known/predictionio-well-known.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 5
  pass: local-v1