Summary
Wraps the StupidAPIs YC rejection generator, which takes any startup idea and returns an instant rejection letter in the style of Y Combinator. There's exactly one tool: yc_rejection_generate. The encouragement is explicitly insincere. Part of the Pipeworx gateway ecosystem, so you can either connect to this specific endpoint or access it through the full Pipeworx gateway alongside 250+ other data sources. Requires an X-API-Key to authenticate. Useful if you're building a startup humor bot, need programmatic rejection letter generation for testing UI flows, or just want to roast business ideas on demand. Uses streamable HTTP transport.
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mcp-yc-rejection
yc-rejection MCP — wraps StupidAPIs (requires X-API-Key)
Part of Pipeworx — an MCP gateway connecting AI agents to 673+ live data sources.
Tools
| Tool | Description |
|---|---|
yc_rejection_generate | Instant YC rejection for any startup idea. Encouragement included. Encouragement is not sincere. |
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"yc-rejection": {
"url": "https://gateway.pipeworx.io/yc-rejection/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 673+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Yc Rejection data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →