1,418 free skills
API Design skills
Skills for designing APIs — REST conventions, GraphQL schema design, versioning strategy, rate limiting, and OpenAPI contracts.
Sourced from real, public repositories — synced daily, never invented.
1,418 free skills
Skills for designing APIs — REST conventions, GraphQL schema design, versioning strategy, rate limiting, and OpenAPI contracts.
Sourced from real, public repositories — synced daily, never invented.
15 tools across six categories
13 of them never send your data anywhere
Free · No signup · No trial clock
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vtex-io-graphql-api
vtex/skills
Apply when working with GraphQL schema files in graphql/ or implementing resolvers in node/resolvers/ for VTEX IO apps. Covers schema.graphql definitions, @cacheControl and @auth directives, custom type definitions, and resolver registration in the Service class. Use for exposing data through GraphQL queries and mutations with proper cache control and authentication enforcement.
fusion-help-api
equinor/fusion-skills
Guides developers and admins through direct interaction with the Fusion Help REST API — reading articles, FAQs, release notes, searching content, and managing help documentation programmatically. USE FOR: fetch help articles from API, integrate help content in app, search help content, manage help documentation via API, automate help content, build help tooling. DO NOT USE FOR: using the fhelp CLI tool (use fusion-help-docs skill), modifying Fusion.Services.Help backend code, or non-help-API tasks.
fusion-help-integration
equinor/fusion-skills
Wires Fusion Help Center into app pages — creates article slug constants, adds useHelpCenter hook, and connects PageLayout props so users can open contextual help articles. USE FOR: add help button to page, wire useHelpCenter, create helpArticles constants, integrate Fusion Help in app, connect PageLayout to help center, add openHelpArticle to page. DO NOT USE FOR: authoring markdown help articles (use fusion-help-docs), direct Help REST API calls (use fusion-help-api), modifying @fra/ui shared components.
alchemy-api
alchemyplatform/skills
Wire Alchemy into application code (server, backend, dApp, script) using a standard API key. Preferred app-integration path for normal server/backend usage. Covers EVM JSON-RPC, Token API, NFT API, Transfers API, Prices API, Portfolio API, Simulation, Webhooks, Solana RPC, Solana DAS, Solana Yellowstone gRPC, Sui gRPC, Wallets/Account Kit, and operational topics. Requires `$ALCHEMY_API_KEY`. For live agent work in this session (querying, admin, local automation), use `alchemy-cli` (preferred) or `alchemy-mcp` instead. For app code without an API key (autonomous agent paying per-request, or explicit x402/MPP), use `agentic-gateway` instead.
setup-webhook
vapiai/skills
Configure Vapi server URLs and webhooks to receive real-time call events, transcripts, tool calls, and end-of-call reports. Use when setting up webhook endpoints, building tool servers, or integrating Vapi events into your application.
planetscale-readonly-inventory
planetscale/skills
Collect read-only evidence about PlanetScale org, database, branches, webhooks, backups, roles, Insights, recommendations, and traffic configuration.
dodo-best-practices
dodopayments/skills
Guide for initial Dodo Payments setup, including SDK installation, test and live environments, API keys, and the canonical checkout-to-webhook architecture.
planetscale-webhook-automation-recommendations
planetscale/skills
Recommend webhook subscriptions and safe automation patterns for PlanetScale alerts, anomalies, schema recommendations, deploy requests, and agent workflows.
planetscale-vitess-safety-review
planetscale/skills
Review a PlanetScale Vitess database for safe migrations, deploy requests, schema recommendations, Insights, webhooks, and operational safety.
docyrus-api-dev
docyrus/agent-skills
Develop applications using the Docyrus API with @docyrus/api-client and @docyrus/signin libraries. Use when building apps that authenticate with Docyrus OAuth2 (PKCE, iframe, client credentials, device code), make REST API calls to Docyrus data source endpoints, construct query payloads with filters, aggregations, formulas, pivots, and child queries, or integrate with external connectors (discover connectors, send requests through provider auth, run actions). Triggers on tasks involving Docyrus API integration, @docyrus/api-client usage, @docyrus/signin authentication, data source query building, Docyrus REST endpoint consumption, connector discovery, or external provider requests.
docyrus-cli-app
docyrus/agent-skills
Use the Docyrus CLI (`docyrus`) to interact with the Docyrus platform from the terminal. Use when the user asks to authenticate, list apps, query or manage data records (`ds`), manage dev app data source schema objects (`studio`) including data sources, fields, enums, data views, forms, webforms, HTML/PDF export templates, and email templates, manage automations and their triggers/action nodes (`automation`), build or edit custom AI agents and their sub-resources (`agent`), set an app's AI agent context or manage app-scoped AI tools (`apps`), list tenant email accounts and send emails (`messaging`), manage tenant account settings — brands, the current user's profile, and tenant regional/formatting preferences (`account`), discover and call connectors (`connect`), send API requests, switch tenants/accounts, discover tenant OpenAPI specs, drive browser automation (`browser`), chat with platform agents (`docy`), launch the pi cowork/coding agents (`opsy`/`cody`/`coder`), run the agent bridge server (`server`), manage the repo knowledge graph (`knowledge`) and project plan (`project-plan`), cut releases (`release`), or use the terminal UI via `docyrus tui`. Triggers on `docyrus ds list`, `docyrus ds comments`, `docyrus ds files upload`, `docyrus studio`, `docyrus studio search-fields`, `docyrus automation`, `docyrus automation create-node`, `docyrus agent`, `docyrus apps create`, `docyrus apps set-agent-context`, `docyrus apps ai-tools`, `docyrus messaging email send`, `docyrus account brands`, `docyrus account user-profile`, `docyrus account tenant-preferences`, `docyrus connect`, `docyrus discover`, `docyrus auth`, `docyrus browser`, `docyrus knowledge`, `docyrus project-plan`, `docyrus release`, `docyrus server`, `docyrus tui`, or any terminal-based Docyrus workflow.
api-design-reviewer
alirezarezvani/claude-skills
Comprehensive REST API design review with automated linting, breaking-change detection, and design scorecards. Catches inconsistent conventions, missing versioning, and design smells before APIs ship. Use when reviewing a PR that adds or changes API endpoints, auditing an existing API for v2 migration, or establishing API standards for a team.
marketplace-rate-limiting
vtex/skills
Apply when implementing retry logic, rate limit handling, or resilience patterns in VTEX API integrations. Covers VTEX rate limit headers (X-RateLimit-Remaining, X-RateLimit-Reset, Retry-After), 429 status handling, exponential backoff with jitter, circuit breaker patterns, and request queuing. Use for any VTEX marketplace integration that must gracefully handle API throttling and maintain high availability.
social-media-trends-research
drshailesh88/integrated_content_os
Programmatic social media and marketing research using free tools: pytrends (Google Trends), yars (Reddit without API keys), and Perplexity MCP (Twitter/TikTok/Web). Use when finding trending topics in a niche, tracking keyword velocity and volume, monitoring Reddit discussions, discovering what's going viral, or researching content opportunities before writing. Zero-cost research stack with built-in rate limiting. Complements content-marketing-social-listening skill with executable code.
openapi-specification-v3.2
hairyf/skills
OpenAPI Specification 3.2 — write and interpret OpenAPI descriptions (OAD), paths, operations, parameters, request/response, schema (JSON Schema 2020-12), security, and extensions. Use when authoring or validating OpenAPI 3.2 documents.
API Integration Specialist
davila7/claude-code-templates
Expert in integrating third-party APIs with proper authentication, error handling, rate limiting, and retry logic. Use when integrating REST APIs, GraphQL endpoints, webhooks, or external services. Specializes in OAuth flows, API key management, request/response transformation, and building robust API clients.
cost-export
ruvnet/ruflo
Export cost-tracking telemetry in Prometheus textfile or webhook JSON formats — for external observability (Grafana, Datadog, custom dashboards)
api-designer
zhaono1/agent-playbook
REST and GraphQL API architect for designing robust, scalable APIs. Use when designing new APIs or improving existing ones.
grpc-development
mindrally/skills
Best practices for building high-performance services with gRPC and Protocol Buffers. Use when designing RPC services, defining protobuf schemas, implementing streaming APIs, setting up gRPC interceptors, or building cross-language service communication.
openapi
codewithmukesh/dotnet-claude-kit
>
mcp-server-builder
alirezarezvani/claude-skills
Design and ship production-ready MCP (Model Context Protocol) servers from OpenAPI contracts instead of hand-written tool wrappers. Python and TypeScript support, schema validation, safe evolution. Use when exposing an existing API as an MCP server, building tool integrations for Claude or Codex or Cursor, or scaffolding an MCP project from scratch.
configuring-exports
celigo/ai
Configure Celigo export resources -- the data source step that fetches records from external systems. Use when creating or editing exports, choosing the right adaptor type for a target application, setting up delta/incremental syncs, webhooks, file transfers, or lookups.
cyrus-setup-github
cyrusagents/cyrus
Configure GitHub for Cyrus — gh CLI login and git config for PRs, with optional webhook setup to enable @mention responses in PR comments, automated rebases and merges, and auto-fixing based on CI failures (coming soon).
graphql
mindrally/skills
Expert in GraphQL API development with type-safe patterns and optimization
amc-run-video-calibration
nvidia/skills
Calibrate a new dataset from pre-recorded video files via the AutoMagicCalib REST API. Use when user has local MP4s and says 'calibrate my videos', 'run AMC on these videos', or similar. For RTSP/live streams, use amc-run-rtsp-calibration instead.
api-rate-limiting
aj-geddes/useful-ai-prompts
>
apollo-graphql
mindrally/skills
Guidelines for developing GraphQL APIs and React applications using Apollo Client for state management, data fetching, and caching
cyrus-setup-endpoint
cyrusagents/cyrus
Configure the public webhook endpoint for Cyrus — ngrok, Cloudflare Tunnel, or custom URL.
graphql-development
mindrally/skills
GraphQL development guidelines with type-safe clients, schema design, and integration with React and Next.js.
aws-serverless-eda
zxkane/aws-skills
AWS serverless and event-driven architecture expert based on Well-Architected Framework. Use when building serverless APIs, Lambda functions, REST APIs, microservices, or async workflows. Covers Lambda with TypeScript/Python, API Gateway (REST/HTTP), DynamoDB, Step Functions, EventBridge, SQS, SNS, and serverless patterns. Essential when user mentions serverless, Lambda, API Gateway, event-driven, async processing, queues, pub/sub, or wants to build scalable serverless applications with AWS best practices.
bfl-api
black-forest-labs/skills
BFL FLUX API integration guide covering endpoints, async polling patterns, rate limiting, error handling, webhooks, and regional endpoints with Python and TypeScript code examples.
understand-figma
egonex-ai/understand-anything
Analyze a Figma file via the Figma REST API and generate an interactive design knowledge graph (pages, screens, components, component sets, instances, design tokens) with a kind:"design" dashboard.
api-design-patterns
asyrafhussin/agent-skills
RESTful API design, error handling, versioning, and best practices. Use when designing APIs, reviewing endpoints, implementing error responses, or setting up API structure. Triggers on "design API", "review API", "REST best practices", or "API patterns".
openapi-specification-v2
hairyf/skills
OpenAPI (Swagger) 2.0 specification for describing REST APIs. Use when writing, validating, or interpreting Swagger 2.0 specs, generating clients/docs, or working with path/operation/parameter/response/schema/security definitions.
agent-email-patterns
agentmail-to/agentmail-skills
Architecture patterns for AI agents that communicate over email -- why agents need dedicated inboxes rather than human email accounts, infrastructure/provider tradeoffs, one-inbox-per-agent, two-way conversation loops, human-in-the-loop drafts, WebSocket vs webhook event design, multi-agent topologies, OTP flows, and the threat model (prompt injection, webhook spoofing, credential exposure, data leakage). Use when designing how agents send, receive, and manage email conversations, evaluating whether an agent needs email, or choosing an email provider; do not use for AgentMail SDK method calls or basic send/receive implementation.
databricks-model-serving
databricks/databricks-agent-skills
Databricks Model Serving endpoint lifecycle and ops. Use when asked to: CRUD serving endpoints (CLI or MLflow Deployments client); configure traffic routing for A/B / canary deploys and zero-downtime version swaps; retrieve OpenAPI schemas; inspect logs, metrics, or permissions; manage AI Gateway rate limits; discover Foundation Model API endpoints at runtime; integrate endpoints into Databricks Apps; or stream from off-platform clients (Vercel AI SDK v6, standalone Node.js). NOT for: training, MLflow autologging, UC registration, custom PyFunc/ResponsesAgent authoring (databricks-ml-training); Knowledge Assistants/Supervisor Agents (databricks-agent-bricks); MLflow evaluation (databricks-mlflow-evaluation).
document-api-endpoint
getsentry/skills
Document and type a Sentry API endpoint. Write or fix @extend_schema decorators, specify response TypedDicts, type request parameters, correct type drift between the declared schema and the runtime response, and validate the generated spec. Use when asked to "document an endpoint", "add OpenAPI docs", "add/fix @extend_schema", "type an endpoint response", "fix the response type", "fix type drift", "reuse a response type", "split an overloaded endpoint", "specify the response schema", "add a TypedDict response", "migrate a legacy api-docs path", "fix a parameter type", or "make an endpoint public" / "promote an endpoint" (promotion is one section here).
gangtise-copilot
daymade/claude-code-skills
Gangtise (岗底斯投研) OpenAPI skill suite installer and diagnostic tool. One-click install 19 official skills (data, research, utility), configure accessKey/secretAccessKey, run health diagnostics. Trigger when user mentions Gangtise, 岗底斯, any gangtise-* skill, credential setup, or reports errors like 'token is invalid' / '接口地址错误'.
zod
secondsky/claude-skills
TypeScript-first schema validation and type inference. Use for validating API requests/responses, form data, env vars, configs, defining type-safe schemas with runtime validation, transforming data, generating JSON Schema for OpenAPI/AI, or encountering missing validation errors, type inference issues, validation error handling problems. Zero dependencies, compact core (~5kb gzipped; zod/mini ~1.9kb).
api-versioning
codewithmukesh/dotnet-claude-kit
>
stripe-webhooks
hookdeck/webhook-skills
>
roblox-security
sentinelcore/roblox-skills
Use when writing Roblox game scripts that handle player actions, currencies, stats, damage, or any RemoteEvent/RemoteFunction communication. Use when reviewing code for exploitable patterns, implementing anti-cheat logic, validating client requests on the server, or setting up rate limiting.
dingtalk-connection
xiaomingx/moltbot-connector-feishu-dingtalk
Bridge DingTalk outgoing webhook messages to Clawdbot Gateway and send replies back to DingTalk sessions. Use when setting up DingTalk as a messaging channel, troubleshooting webhook delivery, or running the local bridge service.
syncfusion-react-data-manager
syncfusion/react-ui-components-skills
Implements Syncfusion DataManager for local/remote binding, CRUD, querying, caching, and middleware. Supports JsonAdaptor, ODataAdaptor, ODataV4Adaptor, UrlAdaptor, WebApiAdaptor, WebMethodAdaptor, RemoteSaveAdaptor, GraphQLAdaptor, CustomDataAdaptor, and CustomAdaptor. Covers Query class, filtering, sorting, paging, grouping, persistence, offline mode, caching, and error handling.
grpc-service-development
aj-geddes/useful-ai-prompts
>
fastapi-microservices-development
manutej/luxor-claude-marketplace
Comprehensive guide for building production-ready microservices with FastAPI including REST API patterns, async operations, dependency injection, and deployment strategies
api-design-patterns
bobmatnyc/claude-mpm-skills
Comprehensive API design patterns covering REST, GraphQL, gRPC, versioning, authentication, and modern API best practices
orval
orval-labs/orval
Generate type-safe API clients, TanStack Query/SWR hooks, Zod schemas, MSW mocks, Hono server handlers, MCP servers, and SolidStart actions from OpenAPI specs using Orval. Covers all clients (React/Vue/Svelte/Solid/Angular Query, Fetch, Axios), custom HTTP mutators, authentication patterns, NDJSON streaming, programmatic API, and advanced configuration.
rate-limiting-implementation
aj-geddes/useful-ai-prompts
>
webhook-development
aj-geddes/useful-ai-prompts
>
expressjs-development
manutej/luxor-claude-marketplace
Comprehensive Express.js development skill covering routing, middleware, request/response handling, error handling, and building production-ready REST APIs
pp-figma
mvanhorn/printing-press-library
Every Figma endpoint, plus codegen-ready frame extracts, comments audit, orphans finder, tokens diff Trigger phrases: `extract a figma frame for codegen`, `compact figma file context for AI`, `find unresolved figma comments`, `figma stale components`, `diff figma design tokens`, `figma file fingerprint for CI`, `replay figma webhook deliveries`, `where is this figma variable used`, `use figma`, `run figma-pp-cli`.
neo4j-graphql-skill
neo4j-contrib/neo4j-skills
Build and configure a GraphQL API backed by Neo4j using @neo4j/graphql v7 (current) or v5 (LTS).
api-changelog-versioning
aj-geddes/useful-ai-prompts
>
spring-boot-development
manutej/luxor-claude-marketplace
Comprehensive Spring Boot development skill covering auto-configuration, dependency injection, REST APIs, Spring Data, security, and enterprise Java applications
neo4j-aura-provisioning-skill
neo4j-contrib/neo4j-skills
Provisions and manages Neo4j Aura instances via CLI (aura-cli v1.7+) or REST API.
api-versioning-strategy
aj-geddes/useful-ai-prompts
>
webhook-integration
aj-geddes/useful-ai-prompts
>
ln-775-api-docs-generator
levnikolaevich/claude-code-skills
Configures Swagger/OpenAPI documentation for backend APIs. Use when adding interactive API docs to a project.
celery-expert
martinholovsky/claude-skills-generator
Expert Celery distributed task queue engineer specializing in async task processing, workflow orchestration, broker configuration (Redis/RabbitMQ), Celery Beat scheduling, and production monitoring. Deep expertise in task patterns (chains, groups, chords), retries, rate limiting, Flower monitoring, and security best practices. Use when designing distributed task systems, implementing background job processing, building workflow orchestration, or optimizing task queue performance.