# Ruby Programming Language and Popular API Gems **Canonical:** https://apis.io/providers/ruby/ **Website:** https://www.ruby-lang.org/ **APIs profiled:** 23 A profile of the Ruby programming language ecosystem from an API perspective: the language and its standard library HTTP surface (Net::HTTP), the rubygems.org package registry and its public v1/v2 REST API, Bundler, RBS type signatures, popular HTTP/REST client gems (Faraday, http.rb, HTTParty, Excon, Typhoeus, REST Client, HTTPClient), and the major Ruby frameworks used to build APIs (Rails API mode, Sinatra, Grape). ## Kin Score — 40.6 / 100 (developing) Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 40.6). | Facet | Score | |---|---| | Discoverability | 64.8 | | Contract Quality | 70.9 | | Governance | 25.0 | | Contract Governance | 25.0 | | Operational Transparency | 44.7 | | Developer Ergonomics | 38.1 | | Commercial Clarity | 0.0 | | Access Clarity | 0.0 | ## Agent readiness — 26.1 (agent-aware) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | no | | OpenAPI Examples | no | | Rate Limit Signal | no | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## Access Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium). ## APIs (23) - **Net::HTTP (Ruby Standard Library)** — The HTTP client class shipped with the Ruby standard library. Provides class and instance methods for GET, POST, PUT, DELETE, HEAD, PATCH, OPTIONS, TRACE plus WebDAV methods (CO... - **RubyGems.org Registry API v2** — Version 2 of the rubygems.org registry API. Adds gem version detail endpoints with optional platform query parameter, returning richer metadata than v1. - **Bundler** — Dependency manager for Ruby. Reads a Gemfile, resolves and installs gems from rubygems.org or alternate sources, and writes Gemfile.lock for reproducible installs across environ... - **RBS (Ruby Type Signatures)** — A language for describing the structure of Ruby programs. Lets developers declare classes, modules, method signatures, instance variables and inheritance in separate .rbs files ... - **Faraday** — Simple but flexible HTTP client library with a common interface over many adapters (Net::HTTP, Typhoeus, Patron, Excon, HTTPClient, and others) and Rack-style middleware for req... - **HTTParty** — HTTP client gem that "makes consuming RESTful web services dead easy" via a class-level DSL. Wraps Net::HTTP with parsing, query handling, and authentication helpers. - **http.rb** — Fast Ruby HTTP client built on the llhttp parser with a chainable request-building API, streaming bodies, persistent connections, and fine-grained timeout control. - **Excon** — EXtended HTTP(S) CONnections library focused on performance, persistent connections, and predictable behavior. Used as an adapter under Faraday and inside Fog/cloud SDKs. - **Typhoeus** — Libcurl-based HTTP client built for running HTTP requests in parallel. Pairs well with Hydra for fan-out integrations against many APIs at once. - **REST Client** — Simple HTTP and REST client for Ruby inspired by Sinatra's microframework style. Provides class-level GET/POST/PUT/DELETE helpers. - **HTTPClient** — Long-standing Ruby HTTP client providing "the functionality of libwww-perl (LWP) in Ruby". Supports keep-alive, cookies, proxies, and SSL. - **Ruby on Rails (API Mode)** — Rails generated with the --api flag boots a slimmer middleware stack and an ApplicationController inheriting from ActionController::API (rather than ActionController::Base), mak... - **Sinatra** — "DSL for quickly creating web applications in Ruby with minimal effort." Widely used to stand up small HTTP APIs and microservices without the ceremony of a full-stack framework. - **Grape** — "Opinionated framework for creating REST-like APIs in Ruby." Provides a routing DSL with parameter validation, versioning, and content-negotiation helpers; runs standalone or mo... - **Ruby Programming Language and Popular API Gems Activity API** — The Activity API from Ruby Programming Language and Popular API Gems — 2 operation(s) for activity. - **Ruby Programming Language and Popular API Gems API Keys API** — The API Keys API from Ruby Programming Language and Popular API Gems — 1 operation(s) for api keys. - **Ruby Programming Language and Popular API Gems Downloads API** — The Downloads API from Ruby Programming Language and Popular API Gems — 2 operation(s) for downloads. - **Ruby Programming Language and Popular API Gems Gems API** — The Gems API from Ruby Programming Language and Popular API Gems — 4 operation(s) for gems. - **Ruby Programming Language and Popular API Gems OIDC API** — The OIDC API from Ruby Programming Language and Popular API Gems — 1 operation(s) for oidc. - **Ruby Programming Language and Popular API Gems Owners API** — The Owners API from Ruby Programming Language and Popular API Gems — 1 operation(s) for owners. - **Ruby Programming Language and Popular API Gems Profiles API** — The Profiles API from Ruby Programming Language and Popular API Gems — 1 operation(s) for profiles. - **Ruby Programming Language and Popular API Gems Versions API** — The Versions API from Ruby Programming Language and Popular API Gems — 3 operation(s) for versions. - **Ruby Programming Language and Popular API Gems Webhooks API** — The Webhooks API from Ruby Programming Language and Popular API Gems — 4 operation(s) for webhooks. ## Agentic access (1) - **Ruby Agentic Access** — 22 operations · 8 acting ## Security (2) - **Ruby Authentication** — apiKey/http · 2 schemes - **Ruby Domain Security** — TLSv1.3 · DMARC ## Use cases (5) - **Consuming Third-Party HTTP APIs** — Calling external REST APIs from Ruby scripts, jobs, and services using Net::HTTP, Faraday, http.rb, HTTParty, or Excon. - **Building JSON APIs** — Standing up REST/JSON APIs with Rails in --api mode, Sinatra, or Grape, optionally documented with OpenAPI tooling. - **Publishing and Managing Gems** — Releasing libraries to rubygems.org via the v1 publish endpoints and the gem and bundler CLIs, including trusted-publishing flows. - **Mirroring or Caching a Private Gem Server** — Running gemstash as a rubygems.org cache and private gem server inside an enterprise. - **Static Analysis and IDE Support** — Writing .rbs signatures so type checkers and IDEs can validate method shapes against the implementation. ## Tags Programming Language, Ruby, HTTP, REST, API Clients, Frameworks, Libraries, Package Registry --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/ruby/). Scores are computed from the provider's own public artifacts under a published rubric.