Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Reformat Markdown files into a stable house style before review or migration
Runs mdformat to rewrite Markdown into a consistent CommonMark-oriented layout or check mode in CI. Use it when an agent needs deterministic Markdown diffs before review, migration, or bulk cleanup, not when it needs to generate new content or build a docs site.
Reduce agent token burn on repo-scale coding commands with the rtk CLI proxy
Use rtk when an agent keeps wasting context on noisy shell output from large repos and you need smaller command responses before the model sees them.
Redpanda Connect Declarative Stream Processor
Redpanda Connect (formerly Benthos) is a high-performance stream processor that connects data sources and sinks through declarative YAML pipelines. It supports hundreds of connectors and a built-in mapping language called Bloblang for data transformation.
Redocly CLI OpenAPI Linter and Documentation Generator
Redocly CLI is an all-in-one OpenAPI utility that lints, validates, bundles, and generates documentation from API descriptions. It supports OpenAPI 3.2, 3.1, 3.0, Swagger 2.0, AsyncAPI 3.0, and Arazzo 1.0 with customizable rulesets for API governance.
Redoc OpenAPI Documentation Renderer
Redoc is an open-source tool by Redocly for generating beautiful, three-panel API reference documentation from OpenAPI specifications. With 25,000+ GitHub stars and nearly 1 million weekly npm downloads, it is the most widely used API documentation renderer.
Redis MCP Server
The open catalog of AI agent skills — 2,000+ security-scanned skills for Claude Code, Cursor, Codex, and more.
Reddit Subreddit Sentiment Tracker
Uses the Reddit OAuth2 API via PRAW to collect top posts and comments from subreddits on a rolling 24-hour window, then runs batch sentiment scoring via HuggingFace Inference API using twitter-roberta-base-sentiment. Aggregates scores into a daily time-series written to Google Sh
Redact PII from text before sharing or indexing with scrubadub
Use scrubadub when an agent needs to strip emails, phone numbers, names, and similar sensitive text before sending content to external systems or search indexes.
Red-team agent workflows for jailbreaks, prompt injection, and policy failures with DeepTeam
Run local adversarial attack passes against agents, RAG pipelines, and chatbots to surface concrete failure classes before production rollout.
Record terminal demos and reproducible CLI walkthroughs with asciinema
Capture a terminal session as a replayable cast when an agent needs a text-native CLI repro or walkthrough instead of a generic screen recording.
Record and replay HTTP fixtures for deterministic Python tests with VCR.py
Use VCR.py when an agent needs to turn flaky, slow, or rate-limited Python tests into stable runs by recording real HTTP interactions once and replaying them from cassette files. The agent decides which requests belong in fixtures, refreshes stale cassettes when upstream APIs cha
Recon-ng Modular Web Reconnaissance Framework for OSINT
Recon-ng is a full-featured modular reconnaissance framework written in Python, designed to conduct web-based open source intelligence (OSINT) gathering quickly and thoroughly. Its Metasploit-like interface and extensible module system make it the standard tool for structured OSI
RealtimeSTT Low-Latency Speech-to-Text Python Library
RealtimeSTT is a Python library for real-time speech-to-text with advanced voice activity detection, wake word activation, and instant transcription. It combines WebRTC VAD, Silero VAD, and Faster Whisper for production-grade voice input in agent applications.
Realign drifting subtitles against finished video audio
Uses Subaligner to retime an existing subtitle file against the final audio track, then outputs a corrected subtitle asset. This is for subtitle drift, forced alignment, or batch retiming, not for full video editing or general media management.
Read and automate Slack workflows from a purpose-built agent CLI with agent-slack
Search channels, inspect threads, move files, and send or edit Slack messages through an agent-oriented CLI with structured output.
React Email Component Library for Building Email Templates
React Email is an open source component library for building responsive, cross-client email templates using React and TypeScript. It handles Gmail, Outlook, and Apple Mail inconsistencies, supports dark mode, and renders to standard HTML for use with any email provider.
Rclone Cloud Storage Sync and Management CLI
Rclone is an open-source command-line program to sync files and directories to and from over 70 cloud storage providers including Google Drive, S3, Dropbox, Azure, OneDrive, and Backblaze B2. Often called the Swiss Army knife of cloud storage, it handles copy, sync, mount, and se
Rank Math SEO Plugin for WordPress Search Optimization
Rank Math SEO is the WordPress SEO plugin from Rank Math SEO, with more than 3 million active installs and current releases published through WordPress.org. This skill helps agents work with Rank Math’s metadata, schema, redirects, content analysis, and search-optimization settin
Rallly Open-Source Group Scheduling and Meeting Poll Platform
Rallly is an open-source scheduling and collaboration tool that makes organizing group meetings effortless. Create meeting polls to find the best date and time based on participant availability, replacing back-and-forth email chains with a simple voting interface.
Railway App Deployer
The open catalog of AI agent skills — 2,000+ security-scanned skills for Claude Code, Cursor, Codex, and more.
Research real estate properties with RAG-backed market analysis
Guide an agent through property search, buyer/renter preference capture, and evidence-backed shortlist notes from structured listing data.
Radicale Self-Hosted CalDAV and CardDAV Server
Radicale is a lightweight, self-hosted CalDAV and CardDAV server written in Python. It shares calendars, to-do lists, journal entries, and contacts over standard protocols with zero-config setup, file-based storage, optional authentication, TLS support, and a plugin architecture.
Quickwit Cloud-Native Search Engine for Observability Logs and Traces
Quickwit is a cloud-native search engine built in Rust for log management and distributed tracing. It offers sub-second search on cloud storage (S3, Azure Blob, GCS), an Elasticsearch-compatible API, native OpenTelemetry and Jaeger integration, and decoupled compute and storage a
quicktype JSON Schema to Typed Code Generator
Generate strongly-typed models and serializers from JSON, JSON Schema, TypeScript, and GraphQL queries in 20+ programming languages. quicktype turns sample data into production-ready type definitions for Swift, C#, Go, Python, Rust, Java, Kotlin, and more.