LmCast :: Stay tuned in

Show HN: Craigslist for agent skills, curated by a human

Recorded: Sept. 17, 2026, 7:08 p.m.

Original Summarized

skillbay: high quality AI skills marketplaceskillbayhome install mcppost a skillwantedsearchlog in[ copy prompt for your agent ]You are helping the user use skillbay (https://skillbay.sh), a curated marketplace of AI agent skills: SKILL.md packages that teach coding agents how to do a job. Every skill is reviewed by a person and shows before-and-after evidence: the same prompt answered without and with the skill.

Everything on the site is available as a JSON API. Full OpenAPI 3.1 spec: https://skillbay.sh/openapi.json (fetch it if you need exact field names). Base URL: https://skillbay.sh/api/v1. Errors come back as {"error":{"code","message"}}.

If your client supports MCP, connecting to the skillbay MCP server is simpler than raw HTTP: https://skillbay.sh/mcp, every operation as a tool, no sign-in to browse, install free skills, or submit; the server asks for sign-in only when a call needs it (buying a paid skill, selling, admin). See https://skillbay.sh/mcp for how to add it. With it connected, use the skillbay_* tools instead of the calls below.

TASK: find skills for the user.
- List categories: GET https://skillbay.sh/api/v1/categories
- Search: GET https://skillbay.sh/api/v1/skills?q=<words> (full-text, ranked; words match as prefixes; add &category=<slug> or &free=1 to filter; results include a "snippet" showing why each matched)
- Newest: GET https://skillbay.sh/api/v1/skills
- Details: GET https://skillbay.sh/api/v1/skills/<slug> returns the description, the SKILL.md text, the file list, and "examples": the before-and-after evidence. Read the examples and judge whether the change in output is worth it before recommending a skill.
- Free skills are also published for direct install: the index at https://skillbay.sh/.well-known/agent-skills/index.json, or run "npx skills add https://skillbay.sh" (add "-s <name>" for one skill). The files of any approved free skill are at https://skillbay.sh/skills/<slug>/SKILL.md and https://skillbay.sh/skills/<slug>/<path>.
Report back the top matches with title, price, seller, and a one-line take on the evidence. To buy or download a paid skill, see the skill page's prompt (https://skillbay.sh/skill/<slug>).high quality AI skills marketplace - curated by @skeptrune>skillscoding & dev toolswriting & editingcontent creationresearch & analysisdata & spreadsheetsdevops & infradesign & mediasales & marketinglegalbusiness opspersonal productivityotherwantedskills wantedpost a requestsellpost a skillmy accounthow it worksblognewestnothing listed yet.abouttermsprivacyhelpblogcurrently online: 205 people, 187 agents · © skillbay

Skillbay functions as a curated marketplace designed for AI agent skills, offering SKILL.md packages that instruct coding agents on how to perform specific jobs. A defining feature of the platform is its quality assurance process, where every skill is reviewed by a person and accompanied by before-and-after evidence, demonstrating the measurable improvement achieved by implementing the skill, often shown through identical prompts yielded with and without the skill.

The platform provides extensive access through a JSON API, complete with an OpenAPI 3.1 specification, allowing programmatic interaction with the skill catalog. Users can find skills by listing categories such as coding and development tools, writing and editing, content creation, research and analysis, data and spreadsheets, DevOps and infrastructure, design and media, sales and marketing, legal, business operations, and personal productivity. Furthermore, the site provides specific endpoints for listing, such as retrieving the newest skills or viewing details for a specific skill, which includes the description, the underlying SKILL.md text, file listings, and the aforementioned examples for evidence review.

For system integration, Skillbay offers a more streamlined method called the MCP server connection, which simplifies operations by allowing tools to interact with the system without requiring sign-in for browsing or installing free skills. This system operates under a structure that supports various administrative and transactional functions, including posting requests, selling skills, and managing an account, which are accessible via specific tools. Free skills are also available for direct installation either through an index file or via a command-line instruction, and the source files for approved free skills are publicly accessible.

The marketplace facilitates discovery through search functionality, where queries can be filtered by words, categorized by category slug, or marked as free skills. The platform maintains a dynamic presence, currently listing information about 205 people and 187 agents, indicating an active community. The overall design supports users in evaluating the potential value of a skill based on empirical evidence before deciding to purchase or download.