PaperAgent — Send Physical Mail vs io.github.iancollins27/mailsnail
PaperAgent — Send Physical Mail is an MCP server published by paperagent.dev. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.iancollins27/mailsnail is an MCP server published by iancollins27. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-24. 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 |  io.github.iancollins27/mailsnail | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.1.0 No figure published Not marked · First seen |
Listed Version: 0.6.0 Downloads/month (npm): 105 Downloads/week (npm): 13 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 | PaperAgent — Send Physical Mail | io.github.iancollins27/mailsnail |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | No figure on GitHub | 0 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (paperagent.dev/mcp) | On your machine (mailsnail) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 7, secrets among them: 2 |
| Licence | Not stated | Not stated |
| Repository (differs) | Not stated | github.com/iancollins27/mailsnail |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-18 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | no remote endpoint we check |
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
PaperAgent — Send Physical Mail
Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.
io.github.iancollins27/mailsnail
Send USPS letters, postcards & certified mail from any agent. No signup; pay-per-piece via Stripe.
How to run each
PaperAgent — Send Physical Mail As a remote MCP server
claude mcp add --transport http letters https://paperagent.dev/mcpio.github.iancollins27/mailsnail As a local MCP server: npm package
claude mcp add --env "CLICK2MAIL_PASSWORD=<YOUR_CLICK2MAIL_PASSWORD>" --env "LOB_API_KEY=<YOUR_LOB_API_KEY>" --env "MAIL_PROVIDER=<YOUR_MAIL_PROVIDER>" --transport stdio mailsnail -- npx -y mailsnailRequires: CLICK2MAIL_PASSWORD (secret), LOB_API_KEY (secret), MAIL_PROVIDER
Commands built only from what the marketplaces declare; the full set for every client is on each card.
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 PaperAgent — Send Physical Mail publish no settings it asks for, so we do not compare settings.
What it can do: PaperAgent — Send Physical Mail · What it can do: io.github.iancollins27/mailsnail · 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.