Stannp provides a direct mail API enabling users to send postcards and letters programmatically.

Use it from your agent

One ClawLink account serves every agent you run. Pick the guide for yours, or connect Stannp once and call the same tools from all of them.

Stannp for OpenClawInstall, pair, connect, first prompt

Stannp for Hermes AgentInstall, pair, connect, first prompt MCPClaude Code, Cursor, any MCP clientCLI login or the remote MCP server

Setup

Connect Stannp through ClawLink's hosted setup.

Auth: Paste one API key. The credential stays on the ClawLink server; your agent holds only a ClawLink key you can revoke.
Where: the ClawLink dashboard, or ask your agent to connect it.

What your agent can do

Stannp exposes 32 tools through ClawLink. The 29 most used are listed here; your agent sees all of them.

Tool	What it does	Kind
`stannp_create_campaign_sample`	Produce a PDF sample of your campaign	Write
`stannp_get_account_balance`	Retrieve the current account balance	Read
`stannp_get_campaign`	Retrieve details of a specific campaign	Read
`stannp_get_campaign_available_dates`	Get available dates for scheduling a campaign (up to 30 days)	Read
`stannp_get_campaign_cost`	Get the estimated cost of booking a campaign	Read
`stannp_get_contact`	Retrieve details of a specific contact	Read
`stannp_get_current_user`	Get information about the currently authenticated user including rate limit status	Read
`stannp_get_reporting_summary`	Get a status summary on individual items within a date range	Read
`stannp_list_campaigns`	Get a list of all campaigns	Read
`stannp_list_contacts`	List all contacts	Read
`stannp_list_folders`	Get a list of folders in your secure file transfer area	Read
`stannp_list_groups`	Get a list of mailing groups on your account	Read
`stannp_list_mailpieces`	Retrieve mailpiece objects sent within a date range	Read
`stannp_list_templates`	List all templates associated with the account	Read
`stannp_validate_address`	Validate a postal address	Read
`stannp_add_recipient_to_group`	Add a recipient to a recipient group	Write
`stannp_add_recipients_to_group`	Add existing recipients to a mailing list group	Write
`stannp_create_campaign`	Create a new direct mail campaign on the platform	Write
`stannp_create_folder`	Create a folder in your secure file transfer area	Write
`stannp_create_group`	Create a new recipient group in Stannp	Write
`stannp_create_letter`	Create a letter with mail merge to insert address and variable data	Write
`stannp_create_postcard`	Create a postcard	Write
`stannp_create_selection`	Create a new recipient selection for targeting in Stannp	Write
`stannp_import_recipients`	Import recipients from a CSV or XLS file into a Stannp recipient group	Read
`stannp_merge_pdfs`	Merge multiple PDF files into a single file	Write
`stannp_recalculate_group`	Recalculate a group to ensure stats are up to date	Read
`stannp_upload_file`	Upload a file to your secure file transfer area	Write
`stannp_cancel_postcard`	Cancel a postcard if processing has not started yet	Write
`stannp_remove_recipients_from_group`	Remove recipients from a group without deleting them	Write