Packages

JSON CRDT library for building local-first, collaborative applications. Automerge represents any JSON data structure as a CRDT that merges changes from multiple sources without conflicts. Unlike Yjs (which focuses on text/rich documents), Automerge handles arbitrary JSON documents — counters, maps, lists, text. Rewritten in Rust (Automerge 2.x) with WebAssembly bindings for high performance. Developed by Ink & Switch research lab (also behind Beehive, Pushpin local-first projects).

Provides bidirectional IoT device communication on Azure — manages device twins (desired/reported state), invokes direct methods on devices, routes device-to-cloud telemetry, and sends cloud-to-device messages via MQTT, AMQP, or HTTPS for AI agents orchestrating IoT fleets.

Open-source developer portal platform created by Spotify and now a CNCF graduated project. Backstage provides a unified frontend for engineering teams: a service catalog (tracks all services, APIs, documentation, and ownership), software templates (scaffolding new projects from opinionated templates), TechDocs (documentation-as-code), and a plugin ecosystem for integrating with CI/CD, monitoring, cloud, and infrastructure tools. Enables teams to build Internal Developer Platforms (IDPs) without building from scratch.

Stanford research framework for programming with LLMs by composing declarative modules and automatically optimizing prompts via compilers rather than hand-crafting. DSPy replaces manual prompt engineering with automatic optimization — define your task as a module (Signature), provide a metric, and DSPy's optimizer (BootstrapFewShot, MIPRO, etc.) generates optimized prompts and few-shot examples. Treats prompts as learnable parameters.

Dolby.io REST API for media processing, communications, and streaming services. Enables AI agents to process audio and video files (noise reduction, enhancement), host real-time video conferences with spatial audio, stream live events, and integrate Dolby's media quality capabilities into content and communications workflows. Dolby.io is developer-focused Dolby technology.

Read-only API for the Etherscan blockchain explorer, providing transaction history, contract ABI lookup, token transfers, gas prices, and verified contract source code.

UX analytics platform providing heatmaps, session recordings, user surveys, and feedback widgets with API access to survey responses and basic site activity.

ConsenSys's Ethereum node-as-a-service providing JSON-RPC access to Ethereum mainnet and testnets, IPFS, Filecoin, and other EVM-compatible networks.

Email platform for SaaS companies combining transactional and marketing email in a single API, with event-triggered automation loops, contact management, and lifecycle messaging.

Open-source LLM evaluation and tracing platform by Comet ML that is OpenTelemetry-compatible, self-hostable, and provides automated hallucination detection with annotation workflows and integrations for LangChain, LlamaIndex, and OpenAI.

Authentication middleware for Node.js. Passport provides a strategy-based authentication framework with 500+ strategies for OAuth (Google, GitHub, Twitter), JWT, local username/password, SAML, and more. Each strategy is a separate npm package. The de-facto standard for Node.js/Express authentication — used in Express and Fastify agent backends that need auth without building from scratch.

Ramp's REST API enables programmatic control of corporate cards, spend limits, expense approvals, reimbursements, and accounting sync — purpose-built for finance automation and spend management at scale.

Symbl.ai REST and WebSocket APIs for conversation intelligence and real-time speech analytics. Enables AI agents to transcribe audio/video conversations, extract action items, topics, sentiment, and questions in real-time or from recordings, and integrate conversation insights into meeting and customer interaction workflows. Symbl.ai specializes in contextual understanding of spoken conversations.

Run GitHub Actions locally using Docker — executes .github/workflows/*.yml workflows on your machine without pushing to GitHub. act features: act (runs default event), act push (simulates push event), act pull_request, act workflow_dispatch, act -j job-name (specific job), event payload injection via JSON files, secret passing (-s SECRET=value or --secret-file .secrets), custom runner images (act -P ubuntu-latest=nektos/act-environments-ubuntu:18.04), artifact support, act-container-architecture for Apple Silicon, and -n dry-run mode. Eliminates the GitHub Actions push-wait-fail cycle for agent CI debugging.

Client-side PDF generation library for browsers and Node.js. jsPDF generates PDF documents programmatically using a drawing API — addText(), addImage(), addPage(), drawLine(). Supports custom fonts, images, tables (via autotable plugin), and basic vector graphics. Primarily a client-side tool — generates PDFs entirely in the browser without server involvement.

Akeneo PIM REST API — Product Information Management system API for centralizing, enriching, and distributing product data across channels and catalogs, enabling agents to automate product data enrichment, category management, and multi-channel publishing.

Provides programmatic control over Amazon EC2 virtual machines, networking, security groups, AMIs, and VPC infrastructure for cloud compute workloads.

Provides a unified v5 REST and WebSocket API for Bybit's spot, linear/inverse perpetuals, futures, and options markets, with an official Python SDK (pybit).

Coinbase's current-generation REST and WebSocket API for placing spot crypto orders, managing portfolios, and streaming real-time market data on Coinbase's retail and institutional exchange.

The world's largest container image registry with a REST API for managing repositories, tags, and automated builds, enabling programmatic access to public and private Docker image repositories.