Connect-MCP

Lob MCP by usefulapi

io.usefulapi/lob · v1.11.1

Verify US & international addresses and send physical mail (postcards, letters, checks) via Lob.

MCPremoteno credentialsDocuments & PDF

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Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 18 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 86/100

What it does: 18 tools · 14 read, 4 write (incl. delete/pay) · Developer tools, Documents & PDF

Test call lob_verify_us_address: needs a key: HTTP 401 (846 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +8
  • Read/write annotations: +5
  • Safe test call: +8
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://lob.usefulapi.io/mcp

Tools

18 tools listed at last check
  • 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 only before `send_dat
  • 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 `send_date`. Lob API: P
  • 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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