Craigslist for agent skills, curated by a human
Skillbay is a curated marketplace of AI agent skills (SKILL.md packages) that publishers and developers can browse, install, buy, or sell. Each skill includes human review and before-and-after examples, and the site exposes a JSON API and MCP server for integration.
Craigslist for agent skills, curated by a human is developer tools software teams evaluate for developer tools. Use this page to review pricing, integration signals, and the best alternatives before you commit.
Profile facts come from the vendor source. AiMatch labels unknown pricing or API details instead of estimating them.
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Quick Overview
Best for: Developer Tools
What it does
Developer Tools software for decision-makers comparing workflow fit and alternatives.
Best fit
Developer Tools
Pricing snapshot
Free from Free
Next step
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Craigslist for agent skills, curated by a human
Skillbay is a curated marketplace for AI agent skills—SKILL.md packages that teach coding agents to perform tasks. Each skill is reviewed by a human and includes before-and-after evidence showing the same prompt answered without and with the skill, enabling buyers and integrators to judge the material impact of a skill. The site exposes a JSON API (OpenAPI 3.1 spec) and an MCP server for easy integration; free skills are directly installable from a published index and via a provided npx command. Sign-in is required only for actions that need it (buying paid skills, selling, admin).
high quality AI skills marketplace. every skill is reviewed by a person and shows the same prompt answered without and with the skill. curated by @skeptrune.
Own this listing?
Claim this page for a one-time $29 to add pricing, features, screenshots, verified owner details, and a clearly labeled 30-day category position after the profile is live.
Claim this listing for $29Key Features
Curated skill listings with human reviews
Every skill is reviewed by a person and shows before-and-after evidence: the same prompt answered without and with the skill.
SKILL.md packages
Skills are packaged as SKILL.md files that teach coding agents how to do a job; skill files and examples are exposed on the skill page.
JSON API with OpenAPI spec
Everything on the site is available via a JSON API and a Full OpenAPI 3.1 spec (https://skillbay.sh/openapi.json).
MCP server for tool integration
An MCP server (https://skillbay.sh/mcp) exposes operations as tools and permits browsing and installing free skills without signing in.
Direct install for free skills
Free skills are published for direct install via a well-known index or the provided npx command (index at /.well-known/agent-skills/index.json; 'npx skills add https://skillbay.sh').
Search, categories, and newest endpoints
API endpoints support listing categories, searching skills with filters (q, category, free), and retrieving newest skills.
Pricing
Free skills are available and can be installed directly from the public index or via 'npx skills add https://skillbay.sh'.
Free skills
Free- Published in the public index
- Direct install via npx or index
- Browsable via API
Paid skills
Pricing set per skill (sign-in required to buy)- Paid/premium listing determined by seller
- Purchase flow requires authentication
Use Cases
Discover agent skills
Browse categories, newest listings, or run full-text search via the API to find skills that match a task or domain.
Install free skills into agents
Install free, approved skills directly via the published index or with 'npx skills add https://skillbay.sh' to add capabilities to agents.
Buy or sell premium skills
Purchase paid skills or publish/sell your own; the MCP server asks for sign-in only when an operation requires it (buying a paid skill, selling, admin).
Integrate skill discovery into tooling
Use the JSON API and MCP server to integrate skill search, details, and installs into developer workflows or automation.
Integrations
MCP server
Provides an operations-as-tools interface (https://skillbay.sh/mcp) so clients that support MCP can browse and install skills without raw HTTP.
JSON API / OpenAPI
A full JSON API is available with an OpenAPI 3.1 spec (https://skillbay.sh/openapi.json) for programmatic access to search, listings, and skill details.
Benefits
Limitations
Frequently Asked Questions
No verified FAQs are available.
Getting Started
- 1 Step 1: Browse the site or call the API endpoints (e.g., GET /api/v1/categories, GET /api/v1/skills?q=<words>) to find skills.
- 2 Step 2: Open a skill detail (GET /api/v1/skills/<slug>) to read the SKILL.md, file list, and before-and-after examples; judge whether the improvement is worth it.
- 3 Step 3: Install free skills via the published index (.well-known/agent-skills/index.json) or run 'npx skills add https://skillbay.sh'; use the MCP server (https://skillbay.sh/mcp) for tool-based integration. Sign-in is required only for purchases or selling.
Support
docs
OpenAPI specification and API documentation available at https://skillbay.sh/openapi.json and site documentation pages.
mcp
MCP server endpoint and usage guidance at https://skillbay.sh/mcp for tool-based access.
site help/blog
Help and blog sections are linked from the site for additional guidance (site homepage: https://skillbay.sh).
API
OpenAPI 3.1 spec available at https://skillbay.sh/openapi.json
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