Premier Letters

com.premierletters/mcpVersion 1.0.0

Send real pen-written letters, cards and postcards: quote, preview, order and track by mail.

Status

Responds278 msNov 14, 2026, 14:11 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:11 UTC
Latency: 278 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://www.premierletters.com/api/mcpResponds278 msNov 14, 2026, 14:11 UTC

No sign-in

Claude Code

claude mcp add --transport http premierletters https://www.premierletters.com/api/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: premierletters
Remote MCP server URL: https://www.premierletters.com/api/mcp

Cursor

{
  "mcpServers": {
    "premierletters": {
      "url": "https://www.premierletters.com/api/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"premierletters","type":"http","url":"https://www.premierletters.com/api/mcp"}'

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Tools

13 tools

Tools of Premier Letters
	Description		Read-only	Idempotent	Open world
`check_connection`Check whether the user approved a connect_account request. Returns status pending, denied, expired or claimed, or, exactly once, status approved with the api_key. Poll every 10-30 seconds.	Check whether the user approved a connect_account request. Returns status pending, denied, expired or claimed, or, exactly once, status approved with the api_key. Poll every 10-30 seconds.	Not declared	Not declared	Not declared	Not declared
`connect_account`Get a Premier Letters API key without the user copying one by hand. Pass the user's email and your name; we email them a link to approve (they can sign up from it if they have no account). Then call check_connection with the returned request_id and poll_secret every 10-30 seconds until it returns the api_key (returned once). Show the returned user_code to the user so they can match it on the approval page. No account or key needed to call this.	Get a Premier Letters API key without the user copying one by hand. Pass the user's email and your name; we email them a link to approve (they can sign up from it if they have no account). Then call check_connection with the returned request_id and poll_secret every 10-30 seconds until it returns the api_key (returned once). Show the returned user_code to the user so they can match it on the approval page. No account or key needed to call this.	Not declared	Not declared	Not declared	Not declared
`create_order`Create 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, "card_on_file" charges the caller's saved card immediately, "balance" pays from the prepaid account balance (no small-order handling fee; fails with insufficient_balance when short), or "checkout_session" returns a checkout_url for the human to complete payment in a browser. Envelope return address: an explicit no_return_address_ack: true always wins; otherwise a supplied return_address, else the account default. With neither address, set no_return_address_ack: true to send without one.	Create 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, "card_on_file" charges the caller's saved card immediately, "balance" pays from the prepaid account balance (no small-order handling fee; fails with insufficient_balance when short), or "checkout_session" returns a checkout_url for the human to complete payment in a browser. Envelope return address: an explicit no_return_address_ack: true always wins; otherwise a supplied return_address, else the account default. With neither address, set no_return_address_ack: true to send without one.	Not declared	Not declared	Not declared	Not declared
`create_topup_link`Create a Stripe Checkout link that adds prepaid credit (plus any bonus tier) to the authenticated account. Give checkout_url to the human to pay in a browser; the balance updates once they pay (check with get_balance). amount_cents must be a whole number between min_cents and max_cents from get_balance.	Create a Stripe Checkout link that adds prepaid credit (plus any bonus tier) to the authenticated account. Give checkout_url to the human to pay in a browser; the balance updates once they pay (check with get_balance). amount_cents must be a whole number between min_cents and max_cents from get_balance.	Not declared	Not declared	Not declared	Not declared
`get_balance`Get the authenticated account's prepaid balance (balance_cents) and the top-up rules: minimum and maximum top-up, bonus tiers and suggested amounts. Orders paid with payment.method "balance" skip the small-order handling fee. Use create_topup_link to add funds.	Get the authenticated account's prepaid balance (balance_cents) and the top-up rules: minimum and maximum top-up, bonus tiers and suggested amounts. Orders paid with payment.method "balance" skip the small-order handling fee. Use create_topup_link to add funds.	Not declared	Not declared	Not declared	Not declared
`get_order_status`Get an order's status, delivery/tracking summary, and per-recipient mail status.	Get an order's status, delivery/tracking summary, and per-recipient mail status.	Not declared	Not declared	Not declared	Not declared
`get_pricing`Get 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. Orders under 5 pieces carry a $0.99 per-piece handling fee (included in total_cents), waived when paid from a prepaid balance. Pass output_mode (printed_bw / printed_color, or facsimile for the handwriting printed on a laser printer) to quote a printed letter body instead of a pen-written one, and envelope_output_mode to quote a printed envelope. Or pass tier (luxe = letter and envelope written with a real pen; signature = pen-addressed envelope with a printed-handwriting letter; essential = printed handwriting throughout; print = printed type) and/or mailing (a whole built mailing: contents such as coupons, flyers, business cards; add-ons such as wax seals or QR codes; paper and envelope stock) to price it line by line. Every response lists the tiers with their per-piece price.	Get 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. Orders under 5 pieces carry a $0.99 per-piece handling fee (included in total_cents), waived when paid from a prepaid balance. Pass output_mode (printed_bw / printed_color, or facsimile for the handwriting printed on a laser printer) to quote a printed letter body instead of a pen-written one, and envelope_output_mode to quote a printed envelope. Or pass tier (luxe = letter and envelope written with a real pen; signature = pen-addressed envelope with a printed-handwriting letter; essential = printed handwriting throughout; print = printed type) and/or mailing (a whole built mailing: contents such as coupons, flyers, business cards; add-ons such as wax seals or QR codes; paper and envelope stock) to price it line by line. Every response lists the tiers with their per-piece price.	Not declared	Not declared	Not declared	Not declared
`list_extras`List the extra pieces that can go in each envelope with a Premier Letters order: printed inserts, printed letters, your own inserts, flyers, postcards, business cards. Each has options, a per-unit price in cents, a lead time and a purchase mode: "instant" pieces are charged with the order, "request" pieces are priced by staff after the order is placed. Pass them as `extras` on create_order. With an API key, the account's own prices apply.	List the extra pieces that can go in each envelope with a Premier Letters order: printed inserts, printed letters, your own inserts, flyers, postcards, business cards. Each has options, a per-unit price in cents, a lead time and a purchase mode: "instant" pieces are charged with the order, "request" pieces are priced by staff after the order is placed. Pass them as `extras` on create_order. With an API key, the account's own prices apply.	Not declared	Not declared	Not declared	Not declared
`list_handwriting_styles`List 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 available handwriting styles (fonts) for a letter order. Use the returned "id" as options.handwriting_style / handwriting_style when creating an order or previewing.	Not declared	Not declared	Not declared	Not declared
`list_orders`List the authenticated user's recent orders.	List the authenticated user's recent orders.	Not declared	Not declared	Not declared	Not declared
`list_templates`List the authenticated user's saved letter templates.	List the authenticated user's saved letter templates.	Not declared	Not declared	Not declared	Not declared
`preview_letter`Render a preview of a handwritten letter (as an SVG image) and get its price, before creating an order. Does not save anything.	Render a preview of a handwritten letter (as an SVG image) and get its price, before creating an order. Does not save anything.	Not declared	Not declared	Not declared	Not declared
`verify_address`Verify and standardize a US mailing address via USPS. Use before create_order to catch typos and get the USPS-standardized form.	Verify and standardize a US mailing address via USPS. Use before create_order to catch typos and get the USPS-standardized form.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Sep 21, 2026
Updated: Sep 21, 2026
Website: https://www.premierletters.com/developers⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): CommunicationSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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