🔗API Helpers Skills
Browse the best API Helpers skills for Claude Code, Codex, Cursor and other AI agents.
1,403 skills · Page 3 of 59
openai-sdk
OpenAI official SDK usage (Python, Node.js). Use when: writing code that calls OpenAI API,implementing chat/embeddings/images/audio features, handling streaming responses,async patterns, error handling with SDK. For raw HTTP/REST calls, see `openai-api` skill.
api-contract-sync-manager
★ 557Validate OpenAPI, Swagger, and GraphQL schemas match backend implementation. Detect breaking changes, generate TypeScript clients, and ensure API documentation stays synchronized. Use when working with API spec files (.yaml, .json, .graphql), reviewing API changes, generating frontend types, or validating endpoint implementations.
axiom-storekit-ref
★ 181Reference — Complete StoreKit 2 API guide covering Product, Transaction, AppTransaction, RenewalInfo, SubscriptionStatus, StoreKit Views, purchase options, server APIs, and all iOS 18.4 enhancements with WWDC 2025 code examples
axiom-ios-networking
★ 181Use when implementing or debugging ANY network connection, API call, or socket. Covers URLSession, Network.framework, NetworkConnection, deprecated APIs, connection diagnostics, structured concurrency networking.
axiom-vision
★ 181subject segmentation, VNGenerateForegroundInstanceMaskRequest, isolate object from hand, VisionKit subject lifting, image foreground detection, instance masks, class-agnostic segmentation, VNRecognizeTextRequest, OCR, VNDetectBarcodesRequest, DataScannerViewController, document scanning, RecognizeDocumentsRequest
axiom-ios-integration
★ 181Use when integrating ANY iOS system feature - Siri, Shortcuts, Apple Intelligence, widgets, IAP, camera, photo library, photos picker, audio, axiom-haptics, axiom-localization, privacy. Covers App Intents, WidgetKit, StoreKit, AVFoundation, PHPicker, PhotosPicker, Core Haptics, App Shortcuts, Spotlight.
ground
★ 42Verify external libraries, APIs, and frameworks against current documentation. Use when implementing external dependencies, when unsure if a pattern is current, when the user mentions "ground", "verify docs", "exa", or "current API".
google-gemini-api
★ 9Google Gemini API with @google/genai SDK. Use for multimodal AI, thinking mode, function calling, or encountering SDK deprecation warnings, context errors, multimodal format errors.
sop-api-development
★ 8End-to-end REST/HTTP API delivery SOP with clear contracts, TDD focus, and deployment readiness.
trpc
★ 5Expert guidance for tRPC (TypeScript Remote Procedure Call) including router setup, procedures, middleware, context, client configuration, and Next.js integration. Use this when building type-safe APIs, integrating tRPC with Next.js, or implementing client-server communication with full TypeScript inference.
breaking-change-detector
★ 5Detects backward-incompatible changes to public APIs, function signatures, endpoints, and data schemas before they break production. Suggests migration paths.
x402
★ 5x402 open payment standard for HTTP-native crypto payments. Use for API monetization, AI agent payments, micropayments, and integrating USDC payments into web services using HTTP 402 status code.
structured-outputs
★ 5Techniques for ensuring LLM responses adhere to strict JSON schemas, utilizing Pydantic models, JSON mode, and schema-based refusals. Triggers: structured-output, pydantic, json-schema, json-mode, llm-response-parsing.
llamacpp
★ 4Complete llama.cpp C/C++ API reference covering model loading, inference, text generation, embeddings, chat, tokenization, sampling, batching, KV cache, LoRA adapters, and state management. Triggers on: llama.cpp questions, LLM inference code, GGUF models, local AI/ML inference, C/C++ LLM integration, "how do I use llama.cpp", API function lookups, implementation questions, troubleshooting llama.cpp issues, and any llama-cpp or ggerganov/llama.cpp mentions.
structured-output
★ 3Use when extracting structured data from LLMs, parsing JSON responses, or enforcing output schemas - unified JSON schema API works across OpenAI, Anthropic, Google, and Ollama with automatic validation and parsing
cloud-api-integration
★ 3Expert skill for integrating cloud AI APIs (Claude, GPT-4, Gemini). Covers secure API key management, prompt injection prevention, rate limiting, cost optimization, and protection against data exfiltration attacks.
api-security
★ 3Use when implementing API authentication, authorization, or security patterns. Covers OAuth 2.0, OIDC, JWT, API keys, rate limiting, and common API security vulnerabilities.
generating-rest-apis
★ 1Generate complete REST API implementations from OpenAPI specifications or database schemas.Use when generating RESTful API implementations.Trigger with phrases like "generate REST API", "create RESTful API", or "build REST endpoints".
stripe-connect
★ 1Use when building marketplace platforms, multi-party payments, or managing connected accounts. Invoke for account onboarding, platform payments, charge flows (direct/destination/separate), transfers, payouts, or commission/fee splits.
backend-agent
★ 1Handles backend/API/database work for Unite-Hub. Implements Next.js API routes, Supabase database operations, RLS policies, authentication, and third-party integrations (Gmail, Stripe).
api-integration-architect
★ 1Expert in API integration with React Query, SWR, RTK Query, REST/GraphQL clients, WebSocket real-time, optimistic updates, caching strategies, and error handling
fastapi
Comprehensive FastAPI development skill for building Python web APIs from hello world to production-ready applications. Use when building REST APIs, implementing authentication, integrating databases, adding WebSockets, creating microservices, or any FastAPI development task. Covers project scaffolding, CRUD operations, testing, deployment, and best practices.
lab-integration
Laboratory equipment integration patterns for veterinary clinics including IDEXX, HL7/FHIR message parsing, lab result normalization, and reference range handling. Use when building lab integration features.
payment-integration
Integrate Stripe, PayPal, and payment processors. Handles checkout flows, subscriptions, webhooks, and PCI compliance. Use PROACTIVELY when implementing payments, billing, or subscription features.