Packages

Free, unauthenticated REST API backed by Firebase providing access to Hacker News stories, comments, jobs, polls, and user profiles in real time.

Industry-standard IP geolocation and fraud detection service, available as both downloadable database files (GeoLite2/GeoIP2) and a web API with minFraud risk scoring.

Feature flag and experimentation platform (now part of Harness) with REST API and SDKs for managing feature splits, measuring impact with metrics, and safely rolling out changes.

Fast AI inference platform for image and video generation models (Flux, Stable Diffusion, SDXL, and more) with a queue-based REST API designed for high-throughput production use.

Fully managed data pipeline service that automates data movement from 500+ sources to data warehouses with zero-maintenance connectors, offering a REST API for connector and sync management automation.

Snyk's REST API provides programmatic access to developer security scanning results across four product lines: Snyk Open Source (dependency vulnerability scanning across npm, PyPI, Maven, Go, Ruby, and 20+ ecosystems), Snyk Code (AI-powered SAST for first-party code), Snyk Container (container image and Dockerfile scanning), and Snyk IaC (Terraform, Kubernetes, CloudFormation security). The API enables querying findings, managing projects, triggering scans, and integrating security data into CI/CD pipelines, SOAR workflows, and security dashboards. Snyk maintains one of the largest proprietary vulnerability databases, often providing fix guidance and prioritization intelligence beyond raw CVE data.

Zendesk's REST API for managing support tickets, customers, agents, organizations, and knowledge base articles in Zendesk's customer service platform.

Google's enterprise API management platform providing API gateway, developer portal, analytics, monetization, and policy-based traffic management, managed as a Google Cloud service.

B2B data enrichment platform API that provides company and person intelligence from email addresses or domain names, used for lead enrichment and qualification.

Square's unified commerce API for processing payments, managing inventory, customers, orders, and invoices across in-person POS and online channels.

Financial data API providing real-time stock quotes, fundamental data, earnings, news, and alternative data (insider trading, ESG scores) via REST and WebSocket, with a generous free tier.

Google Firebase's authentication service supporting email/password, phone, and social logins (Google, Apple, GitHub, etc.) with a backend Admin SDK for user management and token verification.

Comprehensive weather data API providing current conditions, forecasts, historical data, and weather alerts for any location worldwide via REST endpoints.

PagerDuty's REST API for managing incidents, alerts, on-call schedules, escalation policies, and services for incident response automation.

Open-source vector database with built-in vectorization modules, hybrid search (BM25 + vector), and a GraphQL/REST/gRPC API for building semantic search and RAG applications.

MCP server that bridges LLM-based coding agents with Language Server Protocol servers, enabling AI assistants to jump to definitions, find references, rename symbols, and get diagnostics across codebases. Intelligently handles imprecise line/column positioning from AI by testing multiple position combinations.

Financial market data platform providing real-time and historical stock, options, forex, and crypto data via REST and WebSocket APIs with comprehensive coverage of US markets.

Enterprise LLM platform from Israeli AI company AI21 Labs. Features Jamba models (hybrid SSM-Transformer architecture) and specialized document summarization and question-answering capabilities.

Hosted headless Chrome service with REST API and WebSocket connections for Puppeteer/Playwright, enabling PDF generation, screenshots, web scraping, and browser automation without managing Chrome infrastructure.

Cloud file storage and synchronization API for uploading, downloading, organizing, and sharing files and folders programmatically with team collaboration features.