Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Remotion Programmatic Video Creator
Create videos programmatically using React components with Remotion. Leverage web technologies like CSS, Canvas, SVG, and WebGL to build dynamic, data-driven video content with full JavaScript control over every frame.
Remote-control tmux sessions for interactive CLI agents
Lets an agent drive existing tmux sessions by sending keystrokes and scraping pane output, which is exactly what you need for interactive CLIs that cannot be handled as one-shot shell commands. Use it for session supervision and intervention, not for general terminal automation o
rembg AI Background Removal CLI and Python Library
rembg is a Python tool for automatic image background removal powered by AI models like U2-Net and SAM. It works as a CLI, Python library, HTTP server, or Docker container, supporting CPU and GPU acceleration for batch processing of images and video frames.
rehype Plugin-Based HTML Processor by the Unified Collective
rehype is a plugin-based HTML processing toolkit built on the unified ecosystem. It parses HTML into an abstract syntax tree, transforms it with composable plugins, and serializes it back — enabling programmatic HTML minification, sanitization, link rewriting, heading extraction,
Rehearse and run scripted terminal demos with realistic playback using doitlive
Play back a scripted terminal demo with controlled typing and pauses so talks, onboarding sessions, and trainings stay smooth.
Regression-test prompts, agents, and RAG outputs before shipping changes
Use promptfoo when an agent needs to evaluate prompt, agent, or RAG behavior against saved assertions before a change goes live. The value here is the repeatable evaluation workflow, not a generic AI tooling catalog entry.
Regression test LLM apps and agents with metrics, traces, and eval suites using DeepEval
Run repeatable eval suites against prompts, RAG pipelines, and agents so regressions surface before release.
Regex Pattern Test Suite Generator
Generates comprehensive test suites for regular expressions using Hypothesis property-based testing and re2 for safe evaluation. Creates positive/negative test cases, edge cases, and ReDoS vulnerability checks.
Regenerate repository config from a single project definition with projen
Use projen when an agent should synthesize and refresh repository boilerplate from one canonical project definition instead of hand-editing many config files.
Regenerate Helm chart READMEs from values and comments before release
Uses helm-docs to rebuild Helm chart documentation from Chart.yaml, values.yaml, and inline comments so README files stay aligned with the actual chart. The agent can run this before commit or release, then surface changed tables, missing descriptions, and documentation drift in
Refresh Cookiecutter-based repositories from their upstream template without losing local answers
Use Cruft when an agent needs to pull new changes from a Cookiecutter template into an existing generated repository without redoing the project from scratch. The agent tracks the template origin, previews the diff, applies the update, and preserves the repository's saved answers
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.