Premier Letters
com.premierletters/mcp · 1.0.0
Send real pen-written letters, cards and postcards: quote, preview, order and track by mail.
Nobody here has read this server's code, because it publishes none. The description above is the maker's own, from the registry. A connection test shows whether it answers and what tools it says it has; it never calls a tool, so it cannot show what one does with your data.
Where it sits in the directory's order
What can be seen from outside, weighed as the directory publishes.
Observable signals: 60 of 100 points (at most 60 here)
| Input | Points | What was seen |
|---|---|---|
| Source published | held at 0 | No entry here publishes source: that is what puts it in this directory. |
| Licence stated | held at 0 | With no files, there is nothing for a licence to be stated in or held against. |
| Advisory state | held at 0 | Advisory databases index packages, and these entries publish none, so there is nothing to look up. |
| Auth declared | 15 of 15 | The registry entry declares a key or a token. |
| Latest connection test reached it | 20 of 20 | The latest test had its handshake answered. |
Where it answers
https://www.premierletters.com/api/mcpstreamable-httpAuthorizationoptional, secret: Bearer <your Premier Letters API key> (create one at https://www.premierletters.com/settings/api-keys). Optional for get_pricing, list_handwriting_styles and verify_address.
Connection test
The MCP handshake, then a request for the tool list, with no key and no data of yours. Run nightly, and by anyone, at most once every ten minutes per server.
It completed the handshake and listed 8 tools.
- Protocol
- 2025-06-18
- Calls itself
- premier-letters 1.0.0
- Handshake time
- 137 ms
- HTTP status
- 200
The tools it lists (8, as of 32 hours ago)
The tool-description rules found nothing in these descriptions. They look for instructions aimed at a model and for hidden characters; they cannot see what a tool does when it runs.
get_pricingGet a live price quote for a Premier Letters order. Pass char_count (or letter_count for a rough estimate) plus optional mailing_option and paper_type to get a per-piece and total price, in cents. No account needed.
list_handwriting_stylesList available handwriting styles (fonts) for a letter order. Use the returned "id" as options.handwriting_style / handwriting_style when creating an order or previewing.
list_templatesList the authenticated user's saved letter templates.
verify_addressVerify and standardize a US mailing address via USPS. Use before create_order to catch typos and get the USPS-standardized form.
preview_letterRender a preview of a handwritten letter (as an SVG image) and get its price, before creating an order. Does not save anything.
create_orderCreate and pay for a Premier Letters order — a real, handwritten letter mailed via USPS. Requires a Premier Letters API key. Use get_pricing or preview_letter first to confirm the price. For payment, either "card_on_file" charges the caller's saved card immediately, or "checkout_session" returns a checkout_url for the human to complete payment in a browser.
get_order_statusGet an order's status, delivery/tracking summary, and per-recipient mail status.
list_ordersList the authenticated user's recent orders.
How this entry becomes a listing
For the maker. The catalogue lists what it can read, and this server publishes nothing to read yet. There are two routes, and only the first is open today.
Publish the source Open today
- Put the server's source in a public repository on github.com, with a licence.
- Keep a server.json in that repository naming this server,
com.premierletters/mcp, and declare the repository in it:"repository": { "url": "https://github.com/owner/repo", "source": "github" }, adding"subfolder"when the server lives in a folder. - Publish that version to the official MCP registry.
- The nightly registry sweep records the declaration. This page stays, dated, and says the source is declared but not yet read.
- The catalogue reads declared repositories at a pinned commit, in batches run by hand, and lists the servers that meet the batch's rules (among them a server.json at that commit naming the server, an https endpoint and a licence). When it lists this server, this page links to the listing. There is no schedule, so no date can be promised.
List it through the maker studio Not open yet
From the official MCP registry, last updated there 16 days ago. The registry entry · www.premierletters.com