Catalog › io.github.taraxe/cachet
Private (key required) Cachet answers but requires credentials, so Faceabot cannot test it anonymously. It is not counted as failing.
Last check: 2026-10-19 21:30 UTC · answered in 3256 ms · remote (no install)
PaperAgent — Send Physical Mail Reliable (measured) · 100%
Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only. · https://paperagent.dev/mcp
Premier Letters Reliable (measured) · 100%
Send real pen-written letters, cards and postcards: quote, preview, order and track by mail. · https://www.premierletters.com/api/mcp
Postbot Reliable (measured) · 100%
Send real paper letters in the Czech Republic, ordinary or registered, via Česká pošta. · https://postbot.cz/mcp
GET https://faceabot.com/resolve?need=…En français : Accès privé (clé requise). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.
Send real paper mail in France from your agent: letters, tracked and registered letters with AR.
Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website{
"mcpServers": {
"cachet": {
"url": "https://www.taraxe.com/cachet/mcp"
}
}
}Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.taraxe/cachet"} on https://faceabot.com/api/mcp.Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.
| When | Answers | Real task | Latency |
|---|---|---|---|
| 2026-10-19 21:30 UTC | ❌ auth_required | 3256 ms |
initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.Your agent asks you before it acts. You answer with one tap on your phone. Human-in-the-loop.
MCP endpoint :https://www.taraxe.com/aval/mcp · website · measurements and detailsSchedule and publish posts to X, LinkedIn, Instagram, Facebook, TikTok and Bluesky.
MCP endpoint :https://www.taraxe.com/broadcast/mcp · website · measurements and detailsFind tools similar to Cachet →
Show your measured reliability on your README or website:
[](https://faceabot.com/tools/io.github.taraxe/cachet)Data in JSON: /api/catalog?id=io.github.taraxe/cachet · Stop probes:
POST /api/reliability/opt-outAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
Best tool by topic · Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Reliability data · Faceabot app · Faceabot → AI assistants · What AI agents cannot find yet · Add Faceabot to your AI · Badge for tool publishers · Help · Privacy · Terms