Lob MCP Server for Cline 21 tools — connect in under 2 minutes
Cline is an autonomous AI coding agent inside VS Code that plans, executes, and iterates on tasks. Wire Lob through Vinkius and Cline gains direct access to every tool. from data retrieval to workflow automation. without leaving the terminal.
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Vinkius Desktop App
The modern way to manage MCP Servers — no config files, no terminal commands. Install Lob and 2,500+ MCP Servers from a single visual interface.
{
"mcpServers": {
"lob": {
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
}
}
}
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Lob MCP Server
Lob MCP Server enables AI agents to send physical mail directly from your applications. Create and mail letters, postcards, and checks programmatically through Lob's print and mail API. Verify US and international addresses, autocomplete partial addresses, and manage your address book. Build reusable HTML templates for personalized mailings. Perfect for automating vendor payments, customer communications, marketing campaigns, payroll checks, and direct mail operations. All mail is printed, processed, and delivered within 24 hours via USPS integration.
Cline operates autonomously inside VS Code. it reads your codebase, plans a strategy, and executes multi-step tasks including Lob tool calls without waiting for prompts between steps. Connect 21 tools through Vinkius and Cline can fetch data, generate code, and commit changes in a single autonomous run.
The Lob MCP Server exposes 21 tools through the Vinkius. Connect it to Cline in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Lob to Cline via MCP
Follow these steps to integrate the Lob MCP Server with Cline.
Open Cline MCP Settings
Click the MCP Servers icon in the Cline sidebar panel
Add remote server
Click "Add MCP Server" and paste the configuration above
Enable the server
Toggle the server switch to ON
Start using Lob
Ask Cline: "Using Lob, help me...". 21 tools available
Why Use Cline with the Lob MCP Server
Cline provides unique advantages when paired with Lob through the Model Context Protocol.
Cline operates autonomously. it reads your codebase, plans a strategy, and executes multi-step tasks including MCP tool calls without step-by-step prompts
Runs inside VS Code, so you get MCP tool access alongside your existing extensions, terminal, and version control in a single window
Cline can create, edit, and delete files based on MCP tool responses, enabling end-to-end automation from data retrieval to code generation
Transparent execution: every tool call and file change is shown in Cline's activity log for full visibility and approval before committing
Lob + Cline Use Cases
Practical scenarios where Cline combined with the Lob MCP Server delivers measurable value.
Autonomous feature building: tell Cline to fetch data from Lob and scaffold a complete module with types, handlers, and tests
Codebase refactoring: use Lob tools to validate live data while Cline restructures your code to match updated schemas
Automated testing: Cline fetches real responses from Lob and generates snapshot tests or mocks based on actual payloads
Incident response: query Lob for real-time status and let Cline generate hotfix patches based on the findings
Lob MCP Tools for Cline (21)
These 21 tools become available when you connect Lob to Cline via MCP:
autocomplete_us_address
Autocomplete a partial US address
cancel_letter
Only works if status is still "processing". Cancel a letter before it enters production
create_address
Requires name and address_line1. Create a new address in your Lob address book
create_bank_account
Requires description, routing_number, account_number, account_type (company/individual), and signatory. Add a bank account for sending checks
create_check
Requires recipient (to), bank account ID, and amount. Optional: memo, logo, description. Create and mail a physical check through Lob
create_letter
Requires recipient (to), sender (from), and file content. Supports HTML templates with merge variables, color options, and mail type selection. Create and mail a physical letter through Lob
create_postcard
Requires recipient (to) and front design. Optional: back design, message, merge variables. Create and mail a physical postcard through Lob
create_template
Create a reusable HTML template for mailings
delete_address
Delete an address from your Lob address book
get_address
Get details of a specific address
get_check
Get details of a specific check by ID
get_letter
Get details of a specific letter by ID
get_postcard
Get details of a specific postcard by ID
get_template
Get details of a specific template
list_addresses
Use optional limit to control result count. List addresses in your Lob address book
list_bank_accounts
Use optional limit to control result count. List bank accounts in your Lob account
list_checks
Track payments, audit disbursements. List physical checks sent through Lob
list_letters
Each letter includes status, tracking number, and expected delivery date. Use optional limit to control result count. List physical letters sent through Lob. Track mailings, check delivery status, and review letter history
list_postcards
Use optional limit to control result count. List physical postcards sent through Lob
list_templates
List HTML templates for mailings
verify_us_address
Verify and standardize a US address
Example Prompts for Lob in Cline
Ready-to-use prompts you can give your Cline agent to start working with Lob immediately.
"Send a letter to John Doe at 123 Main St, New York, NY 10001 with our welcome package HTML template"
"Verify if this address is deliverable: 185 Berry St, San Francisco, CA 94107"
"Send a $500 check to ABC Consulting for consulting services rendered in March"
Troubleshooting Lob MCP Server with Cline
Common issues when connecting Lob to Cline through the Vinkius, and how to resolve them.
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Lob + Cline FAQ
Common questions about integrating Lob MCP Server with Cline.
How does Cline connect to MCP servers?
Can Cline run MCP tools without approval?
Does Cline support multiple MCP servers at once?
Connect Lob with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
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GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Lob to Cline
Get your token, paste the configuration, and start using 21 tools in under 2 minutes. No API key management needed.