Connect Hermes to Postal Data Api
Set up in minutes
Choose where it runs
On your computer through your own Hermes, or hosted in the cloud. The rest of setup adapts to your choice:
Pick what it can do in Postal Data Api
A preset of real Postal Data Api operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Postal Data Api
One sign-in. The agent acts through your account, scoped to the operations you picked.
Add your personal MCP link
The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Hermes first calls in. Hermes connects when it next starts a session.
1. Run this in your terminal
2. Answer no when asked if the server requires authentication — the link itself is the key
<your-link> is your personal server URL — setup mints it for you.
Tools Hermes gets
Postal Data Api
6 toolsGet the city, state and coordinates for a postal code.
Check whether a postal code exists; valid=false is a successful response.
Validate 1–1,000 records in input order, including mixed countries.
Find postal codes by city; US queries require state or ST.
Get all country-specific metadata using the recommended metacode endpoint.
Query the deprecated metazip alias; prefer Get Postal Code Metadata for new workflows.
About Hermes
Frequently asked questions
More ways to connect
More tools for Hermes
Use Postal Data Api with other agents
Open your Hermes agent in one click.
NoClick runs Hermes for you with Postal Data Api wired in as tools. Connect your account and run.