send0 vs inboxmcp
send0 is an MCP server published by send0-dev. Marketplaces we read that list it: 1 (Official MCP Registry). inboxmcp is an MCP server published by zhlei07. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-17. 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 |  send0 |  inboxmcp |
|---|---|---|
| Official MCP Registry | Listed Version: 0.2.1 Downloads/month (npm): 412 Downloads/week (npm): 412 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Listed Version: 0.4.0 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 | send0 | inboxmcp |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (api.send0.dev/mcp) | Remote server (app.inboxmcp.ai/mcp) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 3, secrets among them: 1 | Not published |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/send0-dev/send0-v2 | github.com/zhlei07/inboxmcp |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-13 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 44 h ago, requires a key | Responded 12 h ago, requires a key |
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
send0
Email inboxes for AI agents: create an address, wait for codes and links, send and reply in threads.
inboxmcp
Connect inboxes to your AI, with built-in progress and optional owner-confirmed outgoing email.
How to run each
send0 As a remote MCP server
claude mcp add --transport http send0 https://api.send0.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"Requires: SEND0_API_KEY (secret), Authorization header
inboxmcp As a remote MCP server
claude mcp add --transport http inboxmcp https://app.inboxmcp.ai/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Both endpoints responded at the last daily 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
The marketplaces of inboxmcp publish no settings it asks for, so we do not compare settings.
What it can do: send0 · What it can do: inboxmcp · Compare two other plugins
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.