Api Designer Pro

    3

    Expert API architect to design, review, and audit REST, GraphQL, and event-driven API specifications.

    $12

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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    api-designer-pro

    Example session with this skill installed

    I need an API for a task management app. Users can create projects, add tasks to projects, and mark tasks as complete. Tasks can be assigned to users.

    • Read your context and instructions
    • Compiled the api-designer-pro
    • Generated the UI component

    API DESIGN SPECIFICATION
    ════════════════════════════════════════
    API Name: Task Manager API
    Version: v1
    Base URL: /api/v1
    Auth: Bearer JWT
    ════════════════════════════════════════

    ENDPOINTS
    ──────────────────────────────────────────────────────────────────
    [RESOURCE: projects]

    GET /projects List user's projects
    POST /projects Create project
    Body: { name: string, description?: string }
    Response: 201 { id, name, created_at }

    GET /projects/{id} Get project with task summary
    PATCH /projects/{id} Update project name/description
    DELETE /projects/{id} Delete project (cascades to tasks)

    [RESOURCE: tasks — nested under projects]

    GET /projects/{id}/tasks List tasks in project
    Query: ?status=open|complete&assignee_id=&limit=&cursor=
    [... abbreviated ...]

    api-designer-pro.tsx

    TSX · React component

    Generated

    Example file from a real run - the skill writes it into your workspace.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Generate complete REST specifications with endpoints, schemas, and error codes.Audit an existing API design to identify architectural smells and security gaps.Design GraphQL schemas featuring nested resolvers and complex inputs.Define event-driven catalogs for Kafka or RabbitMQ with idempotency rules.Create standardized error catalogs and security checklists for new services.Design an API for this featureReview my API designHelp me define REST endpoints

    About this skill

    Professional API Architecture & Design

    Designing robust, scalable, and secure APIs is a complex task that requires more than just listing endpoints. API Designer Pro serves as your virtual API architect, helping you design, review, and critique REST, GraphQL, and event-driven architectures using industry-standard patterns.

    What it does

    • Architectural Design: Converts high-level feature requirements into detailed API specifications including endpoints, schemas, and relationships.
    • Design Audits: Analyzes existing designs for "smells" like improper resource naming, incorrect HTTP verb usage, or lack of idempotency.
    • Multi-Paradigm Support: Provides specialized templates and rule-sets for RESTful resources, GraphQL types/resolvers, and asynchronous Event-Driven systems.
    • Safety & Security: Automatically generates a security checklist and error catalog tailored to your specific design.

    Why use this skill

    Generic LLM prompts often produce "CRUD-dy" APIs that ignore production realities like pagination, versioning, and status code semantics. This skill enforces strict architectural principles—such as cursor-based pagination and resource-oriented URI structures—ensuring your API is ready for public consumption or enterprise integration. It provides structured, developer-ready documentation that can be immediately converted into OpenAPI specs or code.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
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      Download the ZIP

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      Unzip into your skills folder

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      Ask your agent to use it

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    Recently published to Agensi

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    Security scanned

    Verified clean 4 months ago

    • Passed all security checks, Safe to install

    Listed4 months ago

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