Postgrid

PostGrid provides APIs for automating direct mail and address verification services, enabling businesses to send letters, postcards, and checks, as well as verify and standardize addresses in real-time.

developer tools

Get your MCP URL

Installation

1
Create a Spinrun account
Sign up for free — no credit card. 5,000 credits on the house.
Create free account
2
Copy your MCP server URL
Mint a Spinstack gateway key inside Spinrun. Your URL is https://mcp.spinrun.ro/mcp.
Log in
3
Add it to your MCP client
Paste the URL + bearer token into Claude Desktop or Cursor. Then invoke Postgrid tools from your agent.

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One MCP URL, every tool your team uses, hosted and audited.

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