Skill UI

A comprehensive guide to integrating PayPal into applications, covering all aspects of the payment lifecycle. This skill covers client-side implementations using JavaScript SDK for Express Checkout, server-side API interactions (REST API) for order creation and capture, handling recurring billing via Subscriptions, managing asynchronous updates through IPN/Webhooks, and processing refunds and payouts. Ideal for building robust e-commerce payment gateways.

Provides a minimal working example demonstrating how to integrate Perplexity's API for web-grounded answers. Learn to perform advanced searches, retrieve cited sources, and handle features like domain filtering and streaming using both TypeScript and Python. Ideal for integrating real-time, source-backed search functionality into applications.

This skill enables the development of robust, event-driven pipelines interacting with the Perplexity Sonar API. Since Perplexity lacks native webhooks, this system simulates event patterns using advanced techniques: Streaming Server-Sent Events (SSE) for real-time data, job queues (like BullMQ/SQS) for asynchronous batch research, and cron-triggered monitoring for scheduled news and trend alerts. It provides patterns for building complex, reliable, and scalable AI applications.

Orchestrate PhantomBuster cloud agents through the Composio MCP integration, automating lead generation, web scraping, usage monitoring, container tracking, CSV exports, and hCaptcha solving in a single workflow.

A comprehensive guide for integrating Plaid API into fintech applications. Covers secure link token creation, public token exchange for persistent access tokens, and real-time transaction synchronization using the /transactions/sync endpoint. Includes best practices for identity verification, ACH authentication, and webhook handling, ensuring robust financial data connectivity.

Automates request interceptor creation for API integration workflows, offering best-practice guidance, production-ready code, and validation when dealing with third-party APIs, webhooks, SDKs, and OAuth scenarios.

Auto-activating API Integration skill that guides response transformer work, covering common patterns, third-party APIs, webhooks, SDK generation, and delivers best-practice code plus validation advice.

A comprehensive guide for diagnosing and resolving common technical errors in Retell AI voice agents. Covers issues such as 401 Unauthorized API keys, call failure formatting, function call timeouts, webhook event failures, and voice quality problems, providing actionable fixes and best practices for smooth implementation.

Guides API integration teams through retry logic helpers, outlining patterns, best practices, production-ready code, and validation for webhooks, SDKs, OAuth, and third-party APIs.

Expert skill for building high-performance, memory-safe systems, web services, and complex libraries using modern Rust (1.75+). Specializes in advanced async programming with Tokio, zero-cost abstractions, and mastering ownership and lifetime rules. Ideal for implementing scalable backend APIs, low-level networking, and performance-critical components where memory safety is paramount.

Automates guidance for building SDK wrappers within API integration workflows, offering best-practice patterns, code scaffolding, validation, and configuration details to streamline third-party API, webhook, and OAuth onboarding.

A comprehensive, multi-phase workflow designed for conducting deep security audits across modern web applications and APIs. This bundle guides users through the entire security lifecycle, including reconnaissance, vulnerability scanning (SAST/DAST), specific testing for OWASP Top 10 and injection flaws, specialized API fuzzing, full-scope penetration testing, security hardening, and final risk reporting. Ideal for compliance checks and proactive security enhancement.