Can I use Lob as a CLI?

Yes. KosmoKrator exposes a Lob CLI through kosmo integrations:call and the provider shortcut command. Commands can return JSON for scripts, CI, and coding agents.

Can I expose Lob through MCP?

Yes. The KosmoKrator MCP gateway can expose selected Lob tools to clients such as Claude Code, Cursor, Codex, and other MCP-compatible tools.

Where are Lob credentials stored?

Lob credentials are configured in KosmoKrator's local integration settings and reused by CLI, Lua, and MCP gateway surfaces.

Can I deny write access for Lob MCP tools?

Yes. Start the gateway with --write=deny for read-only clients, or use ask/allow only for trusted workspaces.

Lob MCP, CLI, and Lua Integration for AI Agents

Lob integration docs for AI agents: MCP gateway setup, Lob CLI commands, Lua API reference, credentials, and function schemas.

7 functions 5 read 2 write API key auth

Submit Lob feedback View package source

Lob for agents

Credentials can be configured manually in web or CLI hosts.

Use this integration from Lua code mode, the headless integrations CLI, or the KosmoKrator MCP gateway. The same package metadata powers all three surfaces.

Machine-Readable Metadata

integration_slug: lob
route_slug: lob
package: lob
auth_strategy: api_key API key
cli_setup_supported: true
cli_runtime_supported: true
mcp_gateway_supported: true
lua_supported: true
supports_multi_account: true

Quick Links

Lua APIAgent-facing namespace and function reference. Lob CLIHeadless setup and direct function calls. Lob MCPMCP gateway setup for external clients. Submit feedbackReport missing tools, auth problems, wrong docs, or runtime issues. ContributeAdd tools or improve metadata in the integrations repo.

Lob MCP Client Matrix

Use these pages when a specific agent client or framework needs copy-pasteable MCP setup for Lob.

Claude Code Lob MCP setup for Claude Code. Cursor Lob MCP setup for Cursor. Codex Lob MCP setup for Codex. OpenAI Agents Lob MCP setup for OpenAI Agents SDK. Claude Agent SDK Lob MCP setup for Claude Agent SDK. Vercel AI SDK Lob MCP setup for Vercel AI SDK. LangChain Lob MCP setup for LangChain. LangGraph Lob MCP setup for LangGraph. CrewAI Lob MCP setup for CrewAI. MCP clients Lob MCP setup for Generic MCP Clients.

Lob CLI Matrix

Use these pages for direct Lob CLI workflows in scripts, CI, cron, and agent wrappers.

CI Lob CLI for CI. Cron Jobs Lob CLI for cron jobs. Shell Scripts Lob CLI for shell scripts. Headless Automation Lob CLI for headless automation. Coding Agents Lob CLI for coding agents.

Function Catalog

Function	Type	Parameters	Description
`lob.lob_list_letters`	Read `read`	2	List letters with pagination. Returns a page of letter objects sorted by creation date (newest first).
`lob.lob_get_letter`	Read `read`	1	Retrieve details of a specific letter by its Lob ID, including delivery status, tracking info, and the letter URL.
`lob.lob_create_letter`	Write `write`	6	Create and send a letter via Lob. Provide recipient and sender addresses (as address IDs or inline address objects), plus an HTML file or template ID for the letter content.
`lob.lob_list_postcards`	Read `read`	2	List postcards with pagination. Returns a page of postcard objects sorted by creation date (newest first).
`lob.lob_get_postcard`	Read `read`	1	Retrieve details of a specific postcard by its Lob ID, including delivery status, tracking info, and thumbnails.
`lob.lob_create_postcard`	Write `write`	5	Create and send a postcard via Lob. Provide recipient and sender addresses (as address IDs or inline address objects), plus HTML or template IDs for the front and back.
`lob.lob_get_current_user`	Read `read`	0	List saved addresses in the Lob account. Returns all verified addresses that can be used as sender or recipient for letters and postcards.