yc-rejection
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@yc-rejectionReject my idea for a blockchain-based toaster"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
mcp-yc-rejection
yc-rejection MCP — wraps StupidAPIs (requires X-API-Key)
Part of Pipeworx — an MCP gateway connecting AI agents to 1476+ live data sources.
Tools
Tool | Description |
| Instant YC rejection for any startup idea. Encouragement included. Encouragement is not sincere. |
Related MCP server: NUVC MCP Server
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"yc-rejection": {
"url": "https://gateway.pipeworx.io/yc-rejection/mcp"
}
}
}What this endpoint actually serves
tools/list at https://gateway.pipeworx.io/yc-rejection/mcp returns the tools in the table
above plus the shared Pipeworx meta-tools — ask_pipeworx,
discover_tools, search_within, remember/recall and the rest of the
gateway-wide set. So the tool count you see is larger than this table: a
single-pack endpoint currently lists roughly 30 shared tools alongside the
pack's own. The connection's initialize response states its exact scope, and
is the authoritative answer for a given day.
This is deliberate, not multiplexing by accident. The meta-tools are what let a
scoped connection answer a question this pack does not cover — via
ask_pipeworx, which routes across the whole catalog — without you adding a
second MCP server. There is currently no way to mount a pack endpoint without
them; if the extra schemas cost you more context than the routing is worth,
connect to the full gateway once rather than to several pack endpoints.
Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}Both URLs reach the same gateway and the same 1476+ data sources. The
only difference is which pack's tools are listed directly; ask_pipeworx
reaches all of them from either one.
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:
ask_pipeworx({ question: "your question about Yc Rejection data" })The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
This server cannot be deployed
Maintenance
Related MCP Connectors
Score, validate, and pressure-test startup ideas with AI from Claude or any MCP agent.
Deterministic sealed verdicts on public claims and startup ideas (0-LLM claim-safety guardian).
Generate MantleKit setup plans and launch-ready SaaS blueprints from a product idea.
Record your pitch in Claude or ChatGPT and get instant feedback on your delivery.
Related MCP Servers
- AlicenseAqualityDmaintenanceValidates startup ideas with a deterministic scorecard, evidence brief, and verdict before code is written, integrating with MCP-aware build agents to avoid building dead-on-arrival products.19 npmMIT

NUVC MCP Serverofficial
AlicenseNot gradedqualityDmaintenanceProvides VC-grade startup intelligence, allowing founders to validate ideas and VCs to screen deals using tools like scoring, investor matching, and financial analysis.7 npmMIT- AlicenseAqualityDmaintenanceAnalyzes startup ideas against 6 sources (GitHub, HN, npm, PyPI, Google, Reddit) with LLM-powered intent parsing to assess competition, demand, and gaps.1MIT
- AlicenseNot gradedqualityCmaintenanceEvaluates startup ideas with a humorous, brutal verdict, including number of pivots required, a funny comparable, and a realistic YC rejection reason.13 npmMIT