Yc Reader

This is a read-only interface to the yc-oss API, an unofficial open-source dataset of all publicly launched Y Combinator companies that updates daily from YC's own Algolia index. It's pure curl and jq, no auth needed. You can pull company profiles, filter by batch or industry, find who's hiring, or dig into diversity data across 5,700+ companies going back to 2005. The API is just static JSON files on GitHub Pages, so it's fast and reliable. Best for startup research, competitive analysis, or building datasets around the YC ecosystem without scraping or hitting rate limits. The skill doc includes solid jq filter examples for common queries.

skills.sh installs: 3.1K
GitHub stars: 3.5K
last updated: Aug 21, 2026

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Install

$ npx -y skills add himself65/finance-skills --skill yc-reader --agent claude-code

Installs into .claude/skills of the current project.

Files

Y Combinator Reader (Read-Only)

If your host has not already executed the shell probes below (for example, in Codex), run the commands inside the ! wrappers with its shell tool before choosing a setup path. Use the actual output; if shell access is unavailable, report that limitation.

Fetches Y Combinator company data from the yc-oss/api, an unofficial open-source API that indexes all publicly launched YC companies. The data is sourced from YC's Algolia search index and updated daily via GitHub Actions.

This is a read-only data source. It provides company profiles, batch listings, industry/tag breakdowns, hiring status, and diversity data. No write operations exist — the API serves static JSON files.

No authentication required. The API is public and free. Just use curl to fetch JSON endpoints.

Step 1: Verify Prerequisites

This skill only needs curl (to fetch data) and jq (to parse/filter JSON). Both are pre-installed on most systems.

!`(command -v curl > /dev/null && echo "CURL_OK" || echo "CURL_MISSING") && (command -v jq > /dev/null && echo "JQ_OK" || echo "JQ_MISSING")`

If JQ_MISSING, install it:

SKILL.md on GitHub

Details

Repository: github.com/himself65/finance-skills
Categories: Backend & APIs, Data Science & ML, Release Management, Automation & Workflows, Finance & Trading
First seen: Jun 3, 2026