app.vercel.proof-stack-lake/proofstack
Audited indie product business cases with source-backed pricing, revenue and pricing benchmarks.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http proofstack 'https://proof-stack-lake.vercel.app/mcp'{
"mcpServers": {
"proofstack": {
"type": "http",
"url": "https://proof-stack-lake.vercel.app/mcp"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
ProofStack MCP Server
Remote Model Context Protocol server for ProofStack — a library of researched indie product cases with published pricing, revenue disclosures where available, and source links. Research depth, freshness, and translation coverage vary by case; this is not a financial audit.
Endpoint (Streamable HTTP, no auth required):
https://proof-stack-lake.vercel.app/mcpTools
| Tool | What it does |
|---|---|
search_cases | Search the published product library by keyword, category, business model, or acquisition channel |
get_case | Full case detail: pricing tiers, revenue disclosures, acquisition operations, what to copy / what not to copy, and available source URLs |
pricing_benchmarks | Median first paid tier, free-tier prevalence, and paywall-capability distribution, computed from published pricing pages |
Example client configuration
{
"mcpServers": {
"proofstack": {
"url": "https://proof-stack-lake.vercel.app/mcp"
}
}
}Works with any MCP client that supports remote Streamable HTTP servers (Claude Desktop / Claude Code, Cursor, etc.).
Source code
The server implementation is open (Apache-2.0) in src/: mcp.ts is the exact JSON-RPC/tool logic running at the endpoint above, and pricingBenchmark.ts is the benchmark computation. The data source contract is documented in database-contract.ts; the underlying dataset is open too (CC BY 4.0) at proofstack-dataset.
Data honesty rules
- Revenue that is not publicly disclosed is returned as
unknown— never estimated. - Acquisition narratives are researched from first-party sources; cases that have not been researched yet say so explicitly instead of returning template text.
- Cases include available source URLs with evidence grades (A/B/C). Check each case’s research status and sources before relying on its claims.
Open dataset: the full case library and benchmarks are downloadable at proofstack-dataset (CC BY 4.0).
More machine-readable context: llms.txt · Pricing benchmarks · Case library
Free tool: AI-visibility check
Can GPTBot and ClaudeBot actually read your site? Run the free check (robots rules, llms.txt, sitemap, server rendering, JSON-LD) and get a shareable scorecard + README badge: https://proof-stack-lake.vercel.app/ai-check
Local / evaluation adapter
Requires Node.js 22 or later. Run node stdio.mjs to expose the same public tools over newline-delimited JSON-RPC stdio. This adapter forwards tool requests to the public endpoint above; it does not require a database credential, read local files, or host a separate dataset. Only JSON-RPC responses go to stdout. An endpoint outage returns a protocol error instead of invented data. The adapter supports this endpoint's JSON responses; it is not a general-purpose SSE proxy.
For Glama: build steps [], CMD arguments ["node", "stdio.mjs"], Node.js 24, no environment variables. Publishing an evaluation release does not require paid hosting.
Frequently asked questions
What is app.vercel.proof-stack-lake/proofstack?
Audited indie product business cases with source-backed pricing, revenue and pricing benchmarks.
How do I install app.vercel.proof-stack-lake/proofstack?
It runs as a remote server. In Claude Code: claude mcp add --transport http proofstack 'https://proof-stack-lake.vercel.app/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does app.vercel.proof-stack-lake/proofstack need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is app.vercel.proof-stack-lake/proofstack open source?
Yes. Its code is on GitHub under the Apache-2.0 license.
Who maintains app.vercel.proof-stack-lake/proofstack?
It is published by lttxzmj. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.