INDIVIDUAL MCP TOOL
update_user_defaults
Update agent spend guardrails and default payment behavior for the connected account.
LIVE ENDPOINT
https://www.tinypostcard.com/api/mcp
Connect to this endpoint to inspect the live schema for update_user_defaults and invoke it with your own arguments.
Indexed input schema
{}Risk classification
Potential side effects detected · medium confidence · heuristic, not a guarantee.
- A tool name or description contains a write-action term.
- A tool name or description suggests a financial action.
Parent server
CONNECT WITH APPROVAL
Client installation
Review this server and its permissions before adding it. Secret placeholders must be set locally.
Codex
~/.codex/config.toml
[mcp_servers.tinypostcard]
url = "https://www.tinypostcard.com/api/mcp"
enabled = true
Claude Code
.mcp.json
{
"mcpServers": {
"tinypostcard": {
"type": "http",
"url": "https://www.tinypostcard.com/api/mcp"
}
}
}
Claude Desktop
Settings → Connectors → Add custom connector
Name: tinypostcard
Remote MCP URL: https://www.tinypostcard.com/api/mcp
Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.
Cursor
.cursor/mcp.json
{
"mcpServers": {
"tinypostcard": {
"url": "https://www.tinypostcard.com/api/mcp"
}
}
}
Visual Studio Code
.vscode/mcp.json
Add to Visual Studio Code{
"servers": {
"tinypostcard": {
"type": "http",
"url": "https://www.tinypostcard.com/api/mcp"
}
}
}
Generic MCP
Client-specific MCP configuration
{
"name": "tinypostcard",
"transport": "streamable-http",
"url": "https://www.tinypostcard.com/api/mcp"
}
MCP Inspector
Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.
Related tools
get_account— Use this first to understand whether the current connector call is signed in, API-key authenticated, or guest-only.list_templates— Use this to find reusable postcard templates.validate_address— Validate and normalize a sender or recipient address before preparing a physical postcard send.search_contacts— Search the connected tinypostcard account contacts.get_contact— Fetch a single contact with full address details.get_user_defaults— Read connected account defaults and agent spend guardrails.create_postcard_draft— Create a reusable draft for the split draft -> quote -> preview -> send flow.quote_postcard_send— Return current price, token cost, and payment options for a draft before preview or send.