Download

Skill UI

Browse and discover 6556+ curated skills

All Development Artificial Intelligence Design & Creative Product & Business Data Science Marketing Soft Skills Productivity Engineering Languages

Search Express , found 35 results

Default Newest Most Downloaded

N8n Expression Syntax Guide

n8n-expression-syntax

czlonkowski/n8n-skills

Practical reference to validate and correct n8n expressions, covering {{ }} usage, $json/$node/$now/$env variables, webhook payload access, and common pitfalls so workflow authors write error-free automations.

PayPal Integration Mastery

paypal-integration

sickn33/antigravity-awesome-skills

Guides developers through PayPal payment integration across Express Checkout, REST APIs, IPN/webhook handling, recurring subscriptions, payouts, and refund workflows so apps can securely support both one-time and recurring transactions.

Senior Backend Toolkit

alirezarezvani/claude-skills

Senior Backend Toolkit centralizes API scaffolding, database migration analysis, load testing, and security-hardening guidance for Node.js/Express/Fastify backends, helping engineers design APIs, optimize queries, and verify resilience.

Slack GIF Toolkit

slack-gif-creator

ComposioHQ/awesome-claude-skills

Toolkit for crafting Slack-ready animated GIFs, offering size/dimension validators, composable animation primitives and helper utilities to keep emoji and message GIFs within Slack's strict limits while enabling expressive effects.

Advanced TypeScript Patterns

typescript-advanced

rohitg00/awesome-claude-code-toolkit

Presents advanced TypeScript techniques—generics, conditional types, mapped types, discriminated unions, and utility combinations—to help developers build safer, more expressive type systems and runtime guards for complex apps.

Scalable Regulatory Network Inference

K-Dense-AI/claude-scientific-skills

Infers gene regulatory networks from bulk or single-cell expression data via GRNBoost2/GENIE3 with distributed computing support, ideal for transcriptomics workflows seeking TF-target relationships at scale.

Cellxgene Census API

cellxgene-census

K-Dense-AI/claude-scientific-skills

Programmatically query the 61M+ CELLxGENE Census atlas to access curated single-cell expression matrices, metadata, and embeddings for tissue, disease, and cell type exploration or ML-ready datasets.

COSMIC Mutation Access

cosmic-database

K-Dense-AI/claude-scientific-skills

Programmatic access to the COSMIC cancer mutation database for downloading mutations, Cancer Gene Census, mutational signatures, fusions, copy number, expression, and resistance data to fuel oncology research or bioinformatics pipelines after authentication.

GEO Data Retriever

K-Dense-AI/claude-scientific-skills

Connect to NCBI's GEO repository, search series/samples/platforms via Entrez queries, fetch profiles, and download raw/processed matrices using GEOparse for transcriptomics and expression analysis workflows.

PyDESeq2 Differential Workflow

K-Dense-AI/claude-scientific-skills

PyDESeq2 brings DESeq2-style differential expression to Python, letting you load bulk RNA-seq counts, filter low-count genes, model single/multi-factor designs, run Wald tests with FDR correction, optionally shrink log-fold changes, and export results for pandas/AnnData workflows.

Reactome Pathway Explorer

reactome-database

K-Dense-AI/claude-scientific-skills

Query the Reactome Content and Analysis Services (or the reactome2py client) to fetch pathway hierarchies, map genes, run overrepresentation/expression analyses, and explore disease interactions for systems biology research.

Single-Cell Generative Toolkit

K-Dense-AI/claude-scientific-skills

Provides Pythonic probabilistic deep models for single-cell genomics, covering RNA, ATAC, multimodal, and spatial data—all with batch correction, uncertainty-aware differential expression, and scanpy-friendly APIs.

Language