Lob MCP by usefulapi

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Runs in the cloud
• Transport: Streamable HTTP
• Category: Other

Install

Pick the AI app you use, then copy the settings.

Passed 4/4 checks · What you ask goes through the maker’s server (lob.usefulapi.io)

claude mcp add --transport http lob https://lob.usefulapi.io/mcp

{
  "mcpServers": {
    "lob": {
      "url": "https://lob.usefulapi.io/mcp"
    }
  }
}

{
  "servers": {
    "lob": {
      "type": "http",
      "url": "https://lob.usefulapi.io/mcp"
    }
  }
}

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

• 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}.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 11, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

• ✓ Pass

  Still maintained

  Code last changed yesterday

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 753 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 18 tool descriptions and found no hidden instructions to the AI

User reviews

No reviews yet

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Compared with others in Otheri

• More stars than 0% of the other 19235 servers in this category
• Published to the registry more recently than 97% of the other 19235 servers in this category
• Basic checks equal to or better than 100% of the other 19235 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

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Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

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