Lob MCP by usefulapi

Last 30 days

Uptime

100%

Response time

331 ms typical, 331 ms slowest 5%

Last check

6 h ago

Next check

any minute now

How to call it

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "lob-mcp-by-usefulapi": {
      "type": "http",
      "url": "https://lob.usefulapi.io/mcp"
    }
  }
}

18 tools

• lob_verify_us_address

  Validate & standardize a US address, returning deliverability, corrected components, and a confidence score. Pass either a single freeform `address` string OR structured `primary_line`/`city`/`state`/`zip_code`. Non-mutating (no mail sent). Lob API: POST /v1/us_verifications.

• lob_verify_intl_address

  Validate & standardize a non-US address. `country` (2-letter ISO code) is required. Non-mutating (no mail sent). Lob API: POST /v1/intl_verifications.

• lob_us_zip_lookup

  Return the cities and state associated with a US ZIP code. Non-mutating. Lob API: POST /v1/us_zip_lookups.

• lob_us_autocomplete

  Suggest complete US addresses from a partial primary line — useful for address entry. Non-mutating. Lob API: POST /v1/us_autocompletions.

• lob_list_postcards

  List sent/scheduled postcards, newest first. Lob API: GET /v1/postcards.

• lob_get_postcard

  Retrieve a single postcard by id, including status, PDF url, and expected delivery. Lob API: GET /v1/postcards/{id}.

• lob_list_letters

  List sent/scheduled letters, newest first. Lob API: GET /v1/letters.

• lob_get_letter

  Retrieve a single letter by id, including status, PDF url, and tracking. Lob API: GET /v1/letters/{id}.

• lob_list_checks

  List sent/scheduled checks, newest first. Lob API: GET /v1/checks.

• lob_get_check

  Retrieve a single check by id, including amount, status, and check number. Lob API: GET /v1/checks/{id}.

• lob_list_self_mailers

  List sent/scheduled self-mailers, newest first. Lob API: GET /v1/self_mailers.

• lob_list_addresses

  List saved address records, newest first. Lob API: GET /v1/addresses.

• lob_get_address

  Retrieve a single saved address record by id. Lob API: GET /v1/addresses/{id}.

• lob_list_templates

  List saved HTML templates usable as postcard/letter artwork. Lob API: GET /v1/templates.

• lob_create_address

  Create a reusable saved address record (does NOT send any mail). Returns an address id (adr_…) usable as `to`/`from` in mail tools. Lob API: POST /v1/addresses.

• lob_create_postcard

  ⚠️ SENDS A REAL POSTCARD and charges your Lob account (use a test_ key to avoid real mail/charges). `to` and `from` accept an existing address id (adr_…) or an inline address object. `front`/`back` accept an HTML string, a hosted asset URL, or a template id (tmpl_…). Cancelable o

• lob_create_letter

  ⚠️ SENDS A REAL LETTER and charges your Lob account (use a test_ key to avoid real mail/charges). `to`/`from` accept an address id (adr_…) or inline object. `file` accepts an HTML string, a hosted PDF/URL, or a template id (tmpl_…). `color` is required. Cancelable only before `se

• lob_cancel_postcard

  Cancel a postcard before its send_date so it is never mailed (and not billed). Fails if the send window has passed. Lob API: DELETE /v1/postcards/{id}.

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