# Scala

**Canonical:** https://apis.io/providers/scala/  
**Website:** https://www.scala-lang.org/  
**APIs profiled:** 11

A topic collection covering the Scala programming language ecosystem, including its standard library, key frameworks, and widely-used libraries. Scala is a strongly-typed, JVM-based language that blends object-oriented and functional programming, widely used in big data engineering, distributed systems, fintech, and backend development. The ecosystem includes the Akka actor framework, Play web framework, ZIO effect system, Cats typeclass library, http4s, Slick, sbt build tool, and Spark. Scala 3.8 is the current major version (January 2026).

## Kin Score — 21.5 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 21.5).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 17.3 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 3.8 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (11)

- **Scala Standard Library API** — The Scala Standard Library provides core data structures, collections, concurrent primitives, and runtime utilities for Scala programs on the JVM, JavaScript (Scala.js), and Nat...
- **Akka API** — Akka is a toolkit for building highly concurrent, distributed, and fault-tolerant applications on the JVM using the Actor model. Includes Akka Actors, Akka HTTP, Akka Streams, a...
- **Akka HTTP API** — Akka HTTP provides a full server- and client-side HTTP stack built on Akka Streams. Offers high-throughput, non-blocking HTTP handling with a powerful Scala DSL for routing and ...
- **Play Framework API** — Play is a reactive web framework for Scala (and Java) built on Akka and Akka Streams. Provides MVC routing, template engine, WS client, and reactive database integrations for bu...
- **ZIO API** — ZIO is a type-safe, composable library for asynchronous and concurrent programming in Scala. Provides a purely functional effect system with structured concurrency, resource man...
- **Cats API** — Cats is a lightweight, modular library for functional programming in Scala. It provides type class abstractions (Functor, Monad, Applicative, etc.) and their instances for stand...
- **http4s API** — http4s is a typeful, functional, streaming HTTP library for Scala built on cats-effect and fs2. Provides server and client abstractions with backends for Blaze, Ember, Jetty, an...
- **Slick API** — Slick is Functional Relational Mapping (FRM) for Scala — a type-safe, composable database access library that lets you work with stored data almost as if you were using Scala co...
- **Circe API** — Circe is the most widely used JSON library for Scala, built on top of Cats. Provides encoding, decoding, traversal, and transformation of JSON values with automatic derivation s...
- **Apache Spark API** — Apache Spark is the dominant big data processing framework in the Scala ecosystem. Its API enables large-scale data processing, SQL analytics, streaming, and machine learning ac...
- **sbt Build Tool** — sbt (Simple Build Tool) is the dominant build tool in the Scala ecosystem (90% adoption). Its Server API enables IDE integration via the Build Server Protocol (BSP). sbt 2.0 rel...

## Security (1)

- **Scala Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Scala Plans Pricing**

## Tags

Big Data, Distributed Systems, Functional Programming, JVM, Programming Language, Scala, Scala 3, Type Safety

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/scala/). Scores are computed from the provider's own public artifacts under a published rubric.