com.premierletters/mcp
Premier Letters
Send real pen-written letters, cards and postcards: quote, preview, order and track by mail.
alive probed 2026-10-12 · HTTP 200
8tools
2.3ktokens in Claude Opus 5.5
2.3ktokens in Claude Code
1.1 %of a 200k context window
1.3ko200k_base estimate
635 msto initialize
522 msto list tools
- Endpoint
- https://www.premierletters.com/api/mcp (streamable-http)
- Host
- www.premierletters.com
- Protocol
- 2025-06-18
- Reports itself as
- premier-letters 1.0.0
- Capabilities
- tools
- Instructions
- 613 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-12. Counted again when the tool definitions change. Method.
- Website
- https://www.premierletters.com/developers
- Registry
- active, updated 2026-09-21 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| create_order | 398 | 32 % |
| get_pricing | 287 | 23 % |
| preview_letter | 162 | 13 % |
| verify_address | 131 | 10 % |
| list_templates | 87 | 7 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-12 11:31 | alive | 816 ms | 8 | 2.3k | 1.3k |
| 2026-10-05 13:34 | alive | 635 ms | 8 | 2.2k | 1.2k |
| 2026-10-05 00:19 | alive | 229 ms | 8 | 1.2k | |
| 2026-10-04 09:57 | alive | 1.1 s | 8 | 1.2k | |
| 2026-10-04 07:51 | alive | 936 ms | 8 | 1.2k | |
| 2026-10-03 20:31 | alive | 944 ms | 8 | 1.2k | |
| 2026-10-03 17:49 | alive | 688 ms | 8 | 1.2k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.premierletters/mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.