Packages

Google's official REST API for reading and managing YouTube data including video search, channel and playlist metadata, video details, captions, comments, and content uploads.

Provides a fully managed, OpenAPI-native API gateway with programmable request/response handlers, rate limiting, API key management, and an auto-generated developer portal deployed at the edge.

Fast local speech recognition — CTranslate2-optimized implementation of OpenAI Whisper. faster-whisper features: WhisperModel class (model_size_or_path, device, compute_type), model.transcribe() returning (segments, info), word-level timestamps, language detection, beam_size parameter, VAD filter (voice activity detection) to skip silence, int8/float16/float32 quantization, CPU and GPU inference, batch transcription, and compatible models from HuggingFace Hub (ctranslate2-based). 4x faster than openai-whisper with 2x less memory. Primary library for high-throughput local speech transcription in agent pipelines.

Fast, embeddable SQL query engine and DataFrame library written in Rust, built on Apache Arrow. DataFusion provides a high-performance query engine that can be embedded in Rust, Python, or other language applications to query local files (Parquet, CSV, JSON, Avro), in-memory data, or remote object stores without a separate server process. Powers tools like InfluxDB IOx, Comet (Spark accelerator), and Ballista (distributed query). The query engine DuckDB competitors claim to beat.

Python GraphQL library using SDL-first (Schema Definition Language) approach. Write your schema in .graphql files, then bind Python resolvers to it. Unlike Strawberry (code-first), Ariadne starts with the GraphQL SDL as source of truth. Supports Django, ASGI (Starlette/FastAPI), WSGI, and async resolvers. Developed by Mirumee Studio with a focus on SDL-first schema design principles.

Provides a globally distributed, eventually consistent key-value store accessible from Cloudflare Workers, optimized for high-read-volume configuration, feature flags, and cached data.

EfíPay (formerly GerenciaNet) Brazil payment platform REST API for developers and businesses to accept Pix (including Pix Cobrança, Pix Direto, and Pix via Open Finance), boleto bancário, and credit card payments with a particularly strong Pix developer experience and comprehensive Pix API (including the official BACEN Pix API standard), making it the reference implementation for Brazilian Pix integration. Enables AI agents to manage Pix charge creation for Brazil instant payment automation, handle Pix via Open Finance for Brazilian open banking payment automation, access boleto bancário generation for Brazil bank slip billing automation, retrieve Pix payment status for Brazil instant transfer confirmation automation, manage Pix webhook for Brazil payment notification automation, handle card payment for Brazil e-commerce checkout automation, access subscription and recurring charge for Brazil billing automation, retrieve Pix report for Brazil payment analytics automation, manage split Pix for Brazil marketplace payment automation, and integrate EfíPay with Brazilian developer, SMB, and fintech platforms for end-to-end Brazil Pix and payment automation.

An MCP server that enables AI assistants to interact with Google Cloud Platform resources through natural language, providing tools for project management, billing, GKE clusters, Cloud SQL, logging, and arbitrary GCP API execution.

Email address verification API that validates whether an email is deliverable, risky, or invalid before sending — reducing bounces and protecting sender reputation.

Embedded serverless vector database built on the Lance columnar format, supporting text, image, and multimodal search without a separate server.

Universal LLM routing library and proxy server that provides a single OpenAI-compatible interface to 100+ LLM providers with cost tracking, fallbacks, and load balancing.

Code generator for OpenAPI specifications. OpenAPI Generator reads OpenAPI 3.x (or Swagger 2.x) specs and generates server stubs, client SDKs, and documentation in 50+ languages (Python, TypeScript, Java, Go, Rust, C#, etc.). Used to generate typed API clients for agent systems from any OpenAPI-documented API without writing boilerplate HTTP client code.

Declarative REST client for Spring Boot — define Java interfaces with @FeignClient and Spring MVC annotations (@GetMapping, @PostMapping, @RequestParam), and Spring Cloud generates the HTTP client implementation at runtime. Eliminates RestTemplate/WebClient boilerplate for inter-service calls. Integrates with Spring Cloud LoadBalancer (client-side load balancing across service instances), Spring Cloud Circuit Breaker (Resilience4j/Hystrix), Micrometer metrics, and Sleuth tracing. Feign interfaces support: custom error decoders, request/response interceptors (add auth headers), logging, and custom encoders/decoders. Replaced Netflix Feign as the Spring Cloud maintained fork.

Reactive Streams library for JVM. Provides Mono<T> (0-1 items) and Flux<T> (0-N items) reactive types with operators for transformation, filtering, combining, and error handling. The foundation of Spring WebFlux, R2DBC reactive databases, and reactive microservices. Implements the Reactive Streams specification for interoperability with RxJava, Akka Streams, and other reactive libraries.

Facebook's experimental atomic state management library for React using atom/selector primitives with native Suspense and Concurrent Mode support — NOTE: now in maintenance mode with significantly reduced Meta investment.

SendGrid Email API provides high-deliverability transactional and marketing email at scale via REST API or SMTP relay. Offers dynamic templates, event webhooks, delivery analytics, and email validation. Part of the Twilio portfolio.

Sportmonks developer-friendly football (soccer) and cricket data REST API for developers, fantasy sports platforms, betting applications, and sports analytics to access live scores, fixtures, standings, player statistics, lineups, odds, and historical data across 1,700+ football leagues and competitions worldwide, with GraphQL and REST access, comprehensive documentation, and affordable pricing for developer projects. Enables AI agents to manage live match event data for football application automation, handle fixture and schedule data for sports calendar automation, access team and player statistics for sports analytics automation, retrieve league standings and table for sports results automation, manage odds data for sports betting automation, handle lineups and formations for tactical analysis automation, access transfer data for player market automation, retrieve historical match data for sports research automation, manage competition filtering for multi-league coverage automation, and integrate Sportmonks with sports apps, fantasy platforms, betting tools, and analytics systems for end-to-end football and cricket data automation.

Spring's reactive web framework for building non-blocking HTTP services on top of Project Reactor. WebFlux serves as the reactive alternative to Spring MVC — request handlers return Mono<T> and Flux<T> instead of blocking ResponseEntity. Supports functional routing (RouterFunction) and annotation-based (@GetMapping) styles. Uses Netty or Undertow instead of Tomcat for non-blocking I/O. Pairs with R2DBC for reactive database access and WebClient for reactive HTTP calls.

Thin wrapper for Terraform/OpenTofu that adds DRY (Don't Repeat Yourself) configuration, remote state management, and multi-account/environment support. Terragrunt enables hierarchical configuration via HCL files, automatic backend initialization, dependency management between Terraform modules, and parallel execution of independent stacks. Commonly used in large Terraform monorepos to manage dozens of environments without duplicating boilerplate.

Programmable communications platform providing SMS, voice, Verify (OTP), and video APIs that agents can use to send messages or make calls via simple REST endpoints.