Delta Lake website screenshot

Delta Lake

Delta Lake is a graduated project of the Linux Foundation AI & Data Foundation providing an open source storage framework for building Lakehouse architectures. Originally contributed by Databricks, it adds reliability, quality, and performance to data lakes with ACID transactions, schema enforcement, time travel, and Iceberg/Hudi interoperability via UniForm. Delta Lake projects also include Delta Sharing (an open protocol for secure data sharing) and catalog-managed tables built on the Iceberg REST Catalog protocol.

Delta Lake publishes 3 APIs on the APIs.io network. Tagged areas include Data, Data Lake, Lakehouse, Linux Foundation, and Open Source.

Delta Lake’s developer surface includes documentation, engineering blog, and 7 more developer resources.

22.6/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
3 APIs
DataData LakeLakehouseLinux FoundationOpen SourceStorageStreaming

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 22.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 1.2 / 12
Discoverability 6.5 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 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
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/delta-lake: 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 3

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

Delta Lake Storage Framework

The Delta Lake storage framework defines the on-disk transaction log and protocol that adds ACID transactions, schema enforcement, and time travel to Parquet-based data lakes. D...

Delta Sharing Protocol

Delta Sharing is an open protocol for secure data sharing across organizations, defined as a REST API specification. Sharing servers expose endpoints for listing shares, schemas...

Delta Catalog-Managed Tables

Catalog-managed Delta tables delegate table scan planning to an external catalog using the Iceberg REST Catalog protocol, enabling interoperability with Unity Catalog and other ...

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Delta Lake Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Security Posture 1

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

Delta Lake Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: delta-lake
name: Delta Lake
description: Delta Lake is a graduated project of the Linux Foundation AI & Data Foundation providing an open source storage
  framework for building Lakehouse architectures. Originally contributed by Databricks, it adds reliability, quality, and
  performance to data lakes with ACID transactions, schema enforcement, time travel, and Iceberg/Hudi interoperability via
  UniForm. Delta Lake projects also include Delta Sharing (an open protocol for secure data sharing) and catalog-managed tables
  built on the Iceberg REST Catalog protocol.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/delta-lake.png
tags:
- Data
- Data Lake
- Lakehouse
- Linux Foundation
- Open Source
- Storage
- Streaming
created: '2026-03-16'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/delta-lake/refs/heads/main/apis.yml
specificationVersion: '0.19'
kind: opensource
apis:
- aid: delta-lake:delta-lake-storage
  name: Delta Lake Storage Framework
  description: The Delta Lake storage framework defines the on-disk transaction log and protocol that adds ACID transactions,
    schema enforcement, and time travel to Parquet-based data lakes. Delta Lake exposes Spark, Rust, and Python APIs (delta-spark,
    delta-rs, deltalake) rather than a network API.
  humanURL: https://docs.delta.io/
  tags:
  - Lakehouse
  - Protocol
  - Storage
  - Transaction Log
  properties:
  - type: Documentation
    url: https://docs.delta.io/
  - type: Protocol
    url: https://github.com/delta-io/delta/blob/master/PROTOCOL.md
  - type: SourceCode
    url: https://github.com/delta-io/delta
  - type: ReleaseNotes
    url: https://github.com/delta-io/delta/releases
- aid: delta-lake:delta-sharing
  name: Delta Sharing Protocol
  description: Delta Sharing is an open protocol for secure data sharing across organizations, defined as a REST API specification.
    Sharing servers expose endpoints for listing shares, schemas, and tables, and for retrieving signed URLs to underlying
    data files.
  humanURL: https://delta.io/sharing/
  tags:
  - Data Sharing
  - Open Protocol
  - REST
  properties:
  - type: Documentation
    url: https://github.com/delta-io/delta-sharing
  - type: Protocol
    url: https://github.com/delta-io/delta-sharing/blob/main/PROTOCOL.md
  - type: SourceCode
    url: https://github.com/delta-io/delta-sharing
- aid: delta-lake:delta-catalog
  name: Delta Catalog-Managed Tables
  description: Catalog-managed Delta tables delegate table scan planning to an external catalog using the Iceberg REST Catalog
    protocol, enabling interoperability with Unity Catalog and other catalog services.
  humanURL: https://delta.io/blog/2026-02-02-delta-catalog-managed-tables/
  tags:
  - Catalog
  - Iceberg REST
  - Interoperability
  properties:
  - type: Documentation
    url: https://delta.io/blog/2026-02-02-delta-catalog-managed-tables/
  - type: Protocol
    url: https://github.com/delta-io/delta/blob/master/PROTOCOL.md
common:
- type: DomainSecurity
  url: security/delta-lake-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/deltalake
- type: Website
  url: https://delta.io/
- type: Documentation
  url: https://docs.delta.io/
- type: GitHubOrg
  url: https://github.com/delta-io
- type: Blog
  url: https://delta.io/blog/
- type: LinuxFoundation
  url: https://lfaidata.foundation/projects/delta-lake/
- type: Slack
  url: https://go.delta.io/slack
- type: Vocabulary
  url: vocabulary/delta-lake-vocabulary.yml
- type: Integrations
  url: https://delta.io/integrations/
integrations:
- name: The Linux Foundation Projects
- name: Delta Lake
- name: logo
- name: UniForm
- name: The Linux Foundation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com