LeapYear Technologies

LeapYear Technologies built an enterprise platform for differentially private analytics and machine learning, letting organizations compute over highly sensitive data and share it across internal silos and external partners with mathematically proven privacy guarantees. LeapYear Core was licensed, self-hosted software rather than a public multi-tenant API: customers ran their own server and reached it through a first-party Python client, with every computation drawing down a quantified privacy exposure budget enforced by the server. Snowflake announced its intent to acquire LeapYear on 2023-02-07 and closed on 2023-02-10 for USD 62.0 million in cash, primarily for talent and developed technology, folding the differential privacy capability into its Global Data Clean Room offering. The company no longer operates independently, leapyear.io is now a Snowflake-controlled redirect, and the only surviving first-party documentation is the Python client API reference on its readthedocs host.

LeapYear Technologies is profiled on the APIs.io network. Tagged areas include Company, AI Infrastructure, Differential Privacy, Data Privacy, and Machine-Learning.

LeapYear Technologies’ developer surface includes documentation, API reference, getting-started guide, authentication, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

15.3/100 emerging ▬ flat Agent 5/100 agent aware library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company AI Infrastructure Differential Privacy Data Privacy Machine-LearningData Clean RoomsPrivacy Enhancing Technologies Acquired

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 15.3/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 9.5 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 5/100 · agent aware

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 8 / 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

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.

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Security Posture 2

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

Leapyear Technologies Authentication

2 schemes

SECURITY

Leapyear Technologies Domain Security

no transport/DNS hardening detected

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

LLMsTxt

LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

ErrorCatalog

Conventions

Conventions

Lifecycle

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Acquisition

Acquisition

Source (apis.yml)

aid: leapyear-technologies
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/leapyear-technologies.png
name: LeapYear Technologies
description: 'LeapYear Technologies built an enterprise platform for differentially private analytics and machine learning,
  letting organizations compute over highly sensitive data and share it across internal silos and external partners with mathematically
  proven privacy guarantees. LeapYear Core was licensed, self-hosted software rather than a public multi-tenant API: customers
  ran their own server and reached it through a first-party Python client, with every computation drawing down a quantified
  privacy exposure budget enforced by the server. Snowflake announced its intent to acquire LeapYear on 2023-02-07 and closed
  on 2023-02-10 for USD 62.0 million in cash, primarily for talent and developed technology, folding the differential privacy
  capability into its Global Data Clean Room offering. The company no longer operates independently, leapyear.io is now a
  Snowflake-controlled redirect, and the only surviving first-party documentation is the Python client API reference on its
  readthedocs host.'
url: https://raw.githubusercontent.com/api-evangelist/leapyear-technologies/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bain-capital-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: snowflake
x-acquired-date: '2023-02-10'
x-operating: false
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- AI Infrastructure
- Differential Privacy
- Data Privacy
- Machine-Learning
- Data Clean Rooms
- Privacy Enhancing Technologies
- Acquired
tags_raw:
- Company
- Ai Infrastructure
- Differential Privacy
- Data Privacy
- Machine Learning
- Data Clean Rooms
- Privacy Enhancing Technologies
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://leapyear.io/
- type: Documentation
  url: https://leapyear-python-docs.readthedocs-hosted.com/en/4.1.1/
- type: APIReference
  url: https://leapyear-python-docs.readthedocs-hosted.com/en/4.1.1/api.html
- type: GettingStarted
  url: https://leapyear-python-docs.readthedocs-hosted.com/en/4.1.1/tutorial.html
- type: Packages
  url: packages/leapyear-technologies-packages.yml
- type: SDKs
  url: packages/leapyear-technologies-packages.yml
- type: Authentication
  url: authentication/leapyear-technologies-authentication.yml
- type: ErrorCatalog
  url: errors/leapyear-technologies-error-codes.yml
- type: Conventions
  url: conventions/leapyear-technologies-conventions.yml
- type: Lifecycle
  url: lifecycle/leapyear-technologies-lifecycle.yml
- type: DomainSecurity
  url: security/leapyear-technologies-domain-security.yml
- type: LLMsTxt
  url: llms/leapyear-technologies-llms.txt
- type: Acquisition
  url: https://www.snowflake.com/en/blog/snowflake-to-acquire-leapyear/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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