Integrations & APIs
Integration agent skills teach AI agents to work with specific external services and APIs: third-party platforms, webhooks, MCP servers, and data syncs. Instead of re-explaining an API every session, install the skill and the agent knows the endpoints and conventions.
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jsgforever Skill Secrets Detector 2Detects hardcoded secrets, API keys, passwords, and credentials in source code. Use when checking for leaked secrets, credential exposure, or before committing code.
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jsgforever Bundle Ma Playbook 2M&A strategy for acquiring companies or being acquired. Due diligence, valuation, integration, and deal structure. Use when evaluating acquisitions, preparing for acquisition, M&A due diligence, integration planning, or deal negotiation.
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ai-driven-dev Bundle Test 2Holds the two testing disciplines this package learned by paying for them, and points at the rest. Use when writing or changing a test under tests/, touching a golden snapshot, or fixing a user-reported bug. Do NOT use for tier conventions, the vitest projects, doubles, fixtures or how to run a suite — those live in `aidd_docs/memory/testing.md`. Do NOT use for writing production code — use the context skill that owns the concept (`tools`, `translate`, `distribution`, `framework`, `telemetry`).
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dojogenesis Skill Test 2Comprehensive testing workflow - unit tests ∥ integration tests → E2E tests
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dojogenesis Skill Morph Apply 2Fast file editing via Morph Apply API (10,500 tokens/sec, 98% accuracy)
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vril-labs Skill Pay For Service 2Make a paid API request to an x402 endpoint with automatic USDC payment. Use when you or the user want to call a paid API, make an x402 request, use a paid service, or pay for an API call. Use after finding a service with search-for-service.
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irahardianto Skill Testing Strategy 2Detailed testing reference material: test doubles strategy, integration test infrastructure (Testcontainers, Firebase emulator), naming conventions per language, test organization patterns. Load when writing tests or setting up test infrastructure. The core mandates (TDD, AAA, pyramid) are in the testing-strategy rule — this skill provides implementation details.
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irahardianto Skill Payment Integration 2PCI DSS compliance, payment gateway integration, tokenization, webhook reliability, idempotency, fraud prevention, and subscription billing.
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cosmix Skill Loom Auth 2Authentication and authorization patterns including OAuth2, JWT, RBAC/ABAC, session management, API keys, password hashing, and MFA.
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cosmix Skill Loom Webhooks 2Webhook implementation and consumption patterns.
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cosmix Skill Loom API Design 2Designs RESTful APIs, GraphQL schemas, and RPC interfaces for consistency, usability, and scalability.
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cosmix Skill Loom Rate Limiting 2API rate limiting and quota management.
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ngocsangyem Bundle Mk Backend Development 2Design and implement backend changes end to end: endpoints, handlers, services, integrations, webhooks, jobs, authenticated access. Routes contracts to api-design-principles, schema to database.
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ngocsangyem Bundle Mk API Design Principles 2Design and review durable REST, GraphQL, RPC, or event API contracts: shape, compatibility, pagination, error semantics. Discovers existing consumers first. Not implementation, schema, or release.
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quantumquirkxyz Skill Math Computational 2Solve numerical and symbolic math problems (root finding, integration, ODEs, symbolic manipulation) with stable algorithms and explicit error analysis.
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quantumquirkxyz Skill Sec Cryptography Applied 2Apply cryptography — encryption at rest / in transit, digital signatures, key management, MACs, TLS/PKI, HSM, secure enclaves — with implementation guidance and anti-patterns.
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swestash Bundle API Design 2Design RESTful and GraphQL APIs — endpoint naming, request/response contracts, error handling, pagination, versioning, auth patterns, OpenAPI specs. Triggers: design the API, API contract, REST API, GraphQL schema, error response format, pagination, API versioning, OpenAPI, swagger, endpoints. Use architecture-design for REST-vs-GraphQL or monolith-vs-microservices decisions.
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swestash Bundle Build Vs Buy 2Decide whether to build in-house, buy a vendor/SaaS product, or adopt OSS — core-vs-commodity framing, multi-year total cost of ownership, integration and maintenance burden, vendor viability, lock-in and exit costs. Triggers: build vs buy, build or buy, vendor evaluation, SaaS vs in-house, should we adopt this open source, TCO, total cost of ownership, lock-in, exit cost, make or buy, off the shelf. Internal-structure decisions (patterns, service boundaries, ADRs for your own code) → architecture-design.
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swestash Bundle Test Suite Design 2Design comprehensive test suites for existing code — strategy across unit/integration/e2e, fixtures, factories, helpers. Triggers: add tests, write tests for, increase coverage, test this module, testing strategy, test plan, what tests do I need, test infrastructure, test helpers, this has no tests. Not for TDD — use tdd-workflow.
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powr-data Bundle App Store Listing 2Prepare and submit an iOS app to the App Store — App Store Connect setup, screenshot dimensions, App Privacy, TestFlight, review submission, and ASC API key
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powr-data Bundle Supabase Auth Email 2Configure Supabase transactional auth email — custom SMTP, branded templates via the Management API, and reliable confirm/reset flows
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u9401066-rootcause-mcp Skill Academic Figure Drawing Harness 3Codex drawing harness integration. Triggers: 繪圖, draw, figure, chart, plot, mermaid, SVG, Gemini, graph, 生成圖表.
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eroslifestyle Skill API Design 2When to use this skill for API design including REST best practices, GraphQL patterns, OpenAPI spec generation, and versioning strategies
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sgcarstrends Bundle Resend 2Use when working with the Resend email API — sending transactional emails (single or batch), receiving inbound emails via webhooks, managing email templates, tracking delivery events, managing domains, contacts, broadcasts, webhooks, API keys, automations, events, viewing API request logs, or setting up the Resend SDK. Always use this skill when the user mentions Resend, even for simple tasks like "send an email with Resend" — the skill contains critical gotchas (idempotency keys, webhook verification, template variable syntax) that prevent common production issues.
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sgcarstrends Skill API Testing 3Write and run API tests with Vitest for endpoints, middleware, and integrations. Use when testing API functionality, request/response validation, or error handling.
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sgcarstrends Skill API Testing 4Write and run API tests with Vitest for endpoints, middleware, and integrations. Use when testing API functionality, request/response validation, or error handling.
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ahmed3elshaer Skill Mobile Testing 2Android testing patterns with JUnit5, Mockk, Turbine, and Compose testing for unit, integration, and UI tests.
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ninehills Bundle Gpt Image Gen 2生图 / 生成图片 / 画图 — 用 OpenAI gpt-image-2 生成图像。支持文生图、参考图生图 (img2img)、蒙版修补 (inpainting)。当用户要求用 GPT 画图、OpenAI 生图、gpt-image-2、文+图生图、参考图片生成、img2img、inpainting 时必加载此技能。Auth 自动继承 OPENAI_API_KEY / Codex OAuth (Pi/Codex) / .env / config.yaml。
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huytieu Bundle Team Brief 2Generate daily team intelligence brief by cross-referencing GitHub, Linear, Slack, PostHog, meetings, and braindumps with two-way Linear sync-back
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ils15 Skill API Design Patterns 2Design RESTful APIs with pagination, filtering, and OpenAPI docs. Use for FastAPI endpoint design.
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ils15 Skill Fastapi Async Patterns 2Async FastAPI with dependency injection and service patterns. Use for building type-safe API endpoints.
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unoplatform Skill Uno Toolkit Csharp Markup 2Use C# Markup with Uno Toolkit controls instead of XAML. Setup, NuGet packages, and fluent API patterns.
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bobmatnyc Skill Mpm Integrate 2Manage API integrations for Claude MPM projects
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bobmatnyc Bundle Mypy 2mypy - Static type checker for Python with gradual typing, strict mode, Protocol support, and framework integration
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bobmatnyc Bundle Pytest 2pytest - Python's most powerful testing framework with fixtures, parametrization, plugins, and framework integration for FastAPI, Django, Flask
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thewatcher01 Bundle Slack Gif Creator 2Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."
Frequently asked questions
What are Integrations & APIs agent skills?
Integration agent skills teach AI agents to work with specific external services and APIs: third-party platforms, webhooks, MCP servers, and data syncs. Instead of re-explaining an API every session, install the skill and the agent knows the endpoints and conventions.
Which Integrations & APIs skills are most installed?
Popular Integrations & APIs skills on SkillMD right now include api-design, test-suite-design, loom-auth. Rankings shift as installs change; sort this page by "Most installs" for the live list.
Do Integrations & APIs skills work with Claude Code and Cursor?
Yes. Every skill here ships as a SKILL.md file, an open format that works in Claude Code, Claude.ai, Cursor, Codex, Windsurf, and 60+ other agents. Install one with npx skillmds@latest add <owner>/<name>, or copy the file into your agent's skills directory.