Lagom website screenshot

Lagom

Lagom is an open source framework for building reactive microservice systems in Java and Scala, built on top of Akka and Play Framework, designed for distributed architectures.

Lagom publishes 1 API on the APIs.io network. Tagged areas include Akka, Event Sourcing, Frameworks, Java, and Microservices.

The Lagom catalog on APIs.io includes 1 Spectral governance ruleset.

Lagom’s developer surface includes documentation, getting-started guide, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.0/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs
AkkaEvent SourcingFrameworksJavaMicroservicesReactiveScala

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 33.0/100 · thin
Contract Quality 4.0 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 7.0 / 12
Discoverability 5.0 / 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/lagom: 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 1

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

Lagom

Lagom is an open source framework for building reactive microservice systems in Java and Scala, built on top of Akka and Play Framework, designed for distributed architectures.

Pricing Plans 1

Published pricing tiers and plan structures.

Lagom Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Lagom Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Lagom Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Lagom API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Lagom Application Configuration

1 properties

JSON SCHEMA

Lagom Service Descriptor

4 properties

JSON SCHEMA

Security Posture 1

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

Lagom Domain Security

TLSv1.3

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: lagom
name: Lagom
description: Lagom is an open source framework for building reactive microservice systems in Java and Scala, built on top
  of Akka and Play Framework, designed for distributed architectures.
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
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/lagom.png
tags:
- Akka
- Event Sourcing
- Frameworks
- Java
- Microservices
- Reactive
- Scala
url: https://raw.githubusercontent.com/api-evangelist/lagom/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-04-28'
specificationVersion: '0.19'
apis:
- aid: lagom:lagom
  name: Lagom
  description: Lagom is an open source framework for building reactive microservice systems in Java and Scala, built on top
    of Akka and Play Framework, designed for distributed architectures.
  humanURL: https://www.lagomframework.com/
  tags:
  - Akka
  - Event Sourcing
  - Frameworks
  - Java
  - Microservices
  - Reactive
  - Scala
  properties:
  - type: Documentation
    url: https://www.lagomframework.com/documentation/
  - type: GettingStarted
    url: https://www.lagomframework.com/get-started.html
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/lagom/refs/heads/main/json-schema/lagom-service-descriptor.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/lagom/refs/heads/main/json-schema/lagom-config.json
common:
- type: DomainSecurity
  url: security/lagom-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/lightbend-inc-
- type: Website
  url: https://www.lagomframework.com/
- type: Documentation
  url: https://www.lagomframework.com/documentation/
- type: GettingStarted
  url: https://www.lagomframework.com/get-started.html
- type: GitHubOrganization
  url: https://github.com/lagom
- type: Blog
  url: https://www.lagomframework.com/blog/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com