Inbox Zero vs SubmitMyStartup — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Inbox Zero vs SubmitMyStartup
In-depth architectural comparison of the Inbox Zero and SubmitMyStartup MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Inbox Zero
Workplace & Productivity · Local stdio
Quality: 60/100 (Good) | Auth: OAuth 2.0
SubmitMyStartup
Workplace & Productivity · Remote HTTP/SSE
Quality: 56/100 (Good) | Auth: No auth required
Verdict Summary: Choose Inbox Zero if you need specialized Workplace & Productivity tools running via a local process. Choose SubmitMyStartup if your workspace requires Workplace & Productivity integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Inbox Zero when:
You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
You have access to required keys: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, MICROSOFT_CLIENT_ID, MICROSOFT_CLIENT_SECRET, GOOGLE_BASE_URL, MICROSOFT_BASE_URL.
Primary tools included: AI personal assistant for inbox organization and reply drafting, Natural language AI rules for custom email handling, Reply Zero tracking for reply and follow-up management.
An MCP server for Inbox Zero. Adds functionality on top of Gmail like finding out which emails you need to reply to or need to follow up on.
SubmitMyStartup is a free, AI- and MCP-ready guide to where to submit your startup. It covers startup directories, launch directories, SaaS directories and Product Hunt alternatives, with real submission results: whether each is really free, the catch, the fees and the wait. Get a shortlist from the planner, or connect Claude or ChatGPT to submitmystartup.com/mcp and ask where to launch your startup.Remote MCP server at https://submitmystartup.com/mcp (Streamable HTTP, read-only, no sign-in or API key). It is also in the official MCP Registry as com.submitmystartup/mcp. Docs: https://submitmystartup.com/api/#mcp
Category & Scope
Tools & Capabilities Breakdown
Inbox Zero Tools (6)
AI personal assistant for inbox organization and reply drafting
Natural language AI rules for custom email handling
Reply Zero tracking for reply and follow-up management
Bulk unsubscriber and archiver tools
Smart filing of attachments to Google Drive or OneDrive
Slack and Telegram integration for chat-based inbox control
SubmitMyStartup Tools (5)
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Inbox Zero is categorized under Workplace & Productivity and uses a local stdio subprocess. In contrast, SubmitMyStartup belongs to Workplace & Productivity using remote streaming HTTP/SSE transport. Select Inbox Zero when you need capabilities focused on workplace & productivity and SubmitMyStartup when you require tools for workplace & productivity.
Shortlist places to submit or launch a startup (directories, launch sites, communities, editorial sites) that fit a founder's product and limits. Use it when someone asks where to list, launch, or promote their startup or product. Returns a ranked list: Free with no catch first, then free with a catch, then paid by lowest listed price, then cost not on record. Within each group: shortest wait, then fewest unknown facts, then name. Never ranked by my own traffic results. Each result gives the cost and catch (cost, free), what the free path needs (needs), the wait, why it fits (why), which facts the query needs that are not on record (unknown), the list's notes, when it was last checked, and rowUrl, the place's row on the website. Leave out any filter that doesn't matter. Use get_directory for every fact about one place, and list_filters for allowed values and example arguments.
get_directory
Every fact about one place on the list, for when a founder asks about a specific directory or launch site. Returns a short summary (cost and catch, what the free path needs, the wait, review, backlink, rowUrl), then the full record: the list's notes and Free? label, structured facts (cost, what it accepts, free-path requirements, wait, review, backlink), where each fact came from and when, the status of the maintainer's own attempt, and links. Look it up by id (from find_directories or search), name, or website URL.
list_filters
The allowed values for find_directories: product types (and the types each implies), audiences, formats, sections of the list, requirements for cannot, the limited regions on record, price currencies, counts, and example arguments for common questions.
search
Keyword search over the list of places to submit a startup. A place's exact name or website ("Indie Hackers", "indiehackers.com") puts it first. Asking for free ("free", "no cost", "$0") leaves out places that are paid only. Product words ("web app", "SaaS", "AI tool", "mobile app") keep only places that take that kind of product. Kind-of-place words ("launch site", "directory", "community") put places of that kind first. Other words match names, websites, regions, and the list's notes. For example "free launch sites for a web app", "AI tool directories", or "Australia". Returns up to 20 places, best match first, each with id, title, url (its row on submitmystartup.com, for citing), and a one-line summary. A query with no specific words returns the best free places. Use fetch with an id for the full record, and find_directories to shortlist by a founder's product and limits.
fetch
The full record of one place on the list, as readable text: cost and catch, what the free path needs and doesn't, the wait, review, backlink, which products, audiences, stages, and regions it takes, the list's notes, when it was last checked, the maintainer's own attempt, and where each fact came from. Takes an id from search or find_directories; a name or website also works. Returns id, title, text, url (the place's row on the website, for citing), and metadata.