What are the best alternatives to api-designer?

The closest matches in the catalog are agent-designer by alirezarezvani, agent-workflow-designer by alirezarezvani, api-design-principles by wshobson. They were picked because their names, descriptions, tags and SKILL.md sections overlap most with api-designer’s, and they come from other repositories.

Which api-designer alternative is most popular?

api-design-principles by wshobson has the most GitHub stars of the alternatives listed here (39,066). Stars belong to the whole repository, so compare how many skills each repository contains too.

Are these alternatives free?

Yes. All of them are free to install from GitHub, and 3 of the 3 alternatives declare a recognized open-source license.

api-designer alternatives

3 skills from other authors that do a similar job to api-designer by Jeffallan. The most recently updated is api-design-principles (Aug 24, 2026).

Side-by-side comparison

Skill	Stars	License	Agents	Last update	Category	Install
api-designer by Jeffallan · this skill	11,060	MIT	Claude Code	Aug 7, 2026	Backend	`Plugin marketplace`
agent-designer by alirezarezvani	24,617	MIT	Claude Code, Codex, Cursor, Gemini CLI	Aug 17, 2026	Workflow	`Plugin marketplace`
agent-workflow-designer by alirezarezvani	24,617	MIT	Claude Code, Codex, Cursor, Gemini CLI	Aug 17, 2026	Workflow	`Plugin marketplace`
api-design-principles by wshobson	39,066	MIT	Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, Antigravity	Aug 24, 2026	Backend	`Plugin marketplace`

Alternatives are matched on overlapping names, descriptions, tags and SKILL.md sections, weighted by how rare each term is across the catalog. Data refreshed weekly from GitHub.

The alternatives

agent-designer

by alirezarezvani

Workflow

Use when the user asks to design a multi-agent system, pick an orchestration pattern (supervisor/swarm/pipeline), generate tool schemas for agents, or evaluate agent execution logs for cost, latency, and failure bottlenecks. Examples: 'design an agent architecture for research automation', 'generate Anthropic tool schemas from these tool descriptions', 'analyze these agent run logs for bottlenecks'. NOT for Claude Code workflow files (use workflow-builder) or single-agent prompt design (use agent-workflow-designer).

Claude CodeCodexCursor+1

25k MIT Updated Aug 17, 2026

agent-workflow-designer

by alirezarezvani

Workflow

Design production-grade multi-agent workflows with clear pattern choice (sequential, parallel, hierarchical), handoff contracts, failure handling, and cost/context controls. Use when architecting a multi-step agent pipeline, choosing between single-agent vs multi-agent approaches, or refactoring an LLM workflow that suffers from context bloat or unreliable handoffs.

Claude CodeCodexCursor+1

25k MIT Updated Aug 17, 2026

api-design-principles

by wshobson

Backend

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.

↑ Growing Claude CodeCodexCursor+3

39k MIT Updated Aug 24, 2026

Custom skills

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Frequently asked questions

What are the best alternatives to api-designer?: The closest matches in the catalog are agent-designer by alirezarezvani, agent-workflow-designer by alirezarezvani, api-design-principles by wshobson. They were picked because their names, descriptions, tags and SKILL.md sections overlap most with api-designer’s, and they come from other repositories.
Which api-designer alternative is most popular?: api-design-principles by wshobson has the most GitHub stars of the alternatives listed here (39,066). Stars belong to the whole repository, so compare how many skills each repository contains too.
Are these alternatives free?: Yes. All of them are free to install from GitHub, and 3 of the 3 alternatives declare a recognized open-source license.