saas-corpus vs app.vercel.proof-stack-lake/proofstack
saas-corpus is a plugin bundle for AI coding tools published by Starbuck245. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). app.vercel.proof-stack-lake/proofstack is an MCP server published by proof-stack-lake.vercel.app. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-18. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  saas-corpus |  app.vercel.proof-stack-lake/proofstack |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 2 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | saas-corpus | app.vercel.proof-stack-lake/proofstack |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 2 (better) | 0 (worse) |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (proof-stack-lake.vercel.app/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/starbuck245/saas-founder-corpus | github.com/lttxzmj/proofstack-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 2 days ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
saas-corpus
A citation-backed knowledge base of how real B2B SaaS companies were actually built. Adds 153 entries to Claude Code: 25 company case studies (Figma, Stripe, Linear, Notion, Snowflake, Datadog, Cursor, Harvey, Atlassian, Ramp, and 15 more), 100+ atomic notes with verbatim founder quotes and dated metrics, 8 function guides (PLG, sales-led, pricing, fundraising, hiring, founder leadership), 4 stage playbooks (pre-seed through scale), 7 failure post-mortems (Quibi, Fast, WeWork, Theranos, Jawbone, Clubhouse, Homejoy), 4 framework syntheses (Obviously Awesome, Play Bigger, MEDDPICC, Crossing the Chasm), and benchmark tables. When you ask Claude about SaaS strategy, fundraising, pricing, GTM, or founder decisions — instead of generic LLM advice, you get specific cases with verbatim quotes, dated numbers, and explicit "when this pattern applies / when it does NOT apply" guardrails to prevent cargo-culting. Every claim cites primary sources (S-1 filings, founder interviews, annual letters). Updated regularly. MIT l
app.vercel.proof-stack-lake/proofstack
Audited indie product business cases with source-backed pricing, revenue and pricing benchmarks.
How to run each
saas-corpus As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install saas-corpus@claude-communityapp.vercel.proof-stack-lake/proofstack As a remote MCP server
claude mcp add --transport http proofstack https://proof-stack-lake.vercel.app/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only app.vercel.proof-stack-lake/proofstack has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: saas-corpus · What it can do: app.vercel.proof-stack-lake/proofstack · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.