Integrate Lob with Claude, Cursor, Chatbots & AI Agents MCP Server

Send physical mail programmatically with an API for postcards, letters, and checks that integrates into your digital workflows.

GDPR Free for Subscribers

Compatible with every major AI agent and IDE

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

autocomplete

Autocomplete address on Lob

Suggest address completions

create

Create check on Lob

Send a physical check

create

Create letter on Lob

Supports certified mail and custom inserts. Send a physical letter

create

Create postcard on Lob

Supports HTML or PDF for front and back. Send a physical postcard

get

Get mail tracking on Lob

Track a mail piece

list

List letters on Lob

List sent letters

list

List postcards on Lob

List sent postcards

verify

Verify intl address on Lob

Verify an international address

verify

Verify us address on Lob

Verify a US address

Security & Code Integrity Audit

Every tool in the Lob MCP Server is continuously audited by the Vinkius Security Engine. We guarantee zero-trust payload isolation, strict data boundaries, and deterministic execution for enterprise-grade AI agents.

A+Score: 100

How Vinkius protects your data

Is there a risk of the AI "going crazy" and deleting important company data?

No. With Vinkius, the AI operates on "rails". It can only make the exact moves you authorized in the tool's settings. It cannot invent routes, access other networks in your company, or decide to delete random files. If the action isn't in the approved catalog, the attempt is blocked instantly.

Can I send letters and postcards through the AI agent?

Yes. Create and send letters with PDF/HTML content and postcards with custom designs. Track delivery through the postal system.

Can I audit what my AI agents are doing with this integration?

Yes, Vinkius provides an immutable, HMAC-chained audit log. Every tool execution, payload, and response is tracked in real-time on your dashboard, giving you complete visibility into your agent's actions.

Does the AI train on my tools or API data?

No. Vinkius enforces a strict Zero-Retention policy. Your data simply passes through our secure servers to complete the requested action and is instantly forgotten. Nothing you do here is ever stored, logged, or used to train any artificial intelligence.

Automated Workflows using Lob

Connect your AI agents and chatbots (Claude, ChatGPT, Cursor) with the Lob MCP server to manage operations across the following domains.

Optimizing direct mail with Claude

Connect the Lob server to enable direct mail workflows. The integration provides structured schemas for Claude to mutate marketing automation data.

ChatGPT address verification Automation

Integrate the Lob server to handle address verification requests natively. It provides the schemas required for ChatGPT and Cursor to manage marketing automation data.