# Suverse US City ZIP Code Lookup

> Suverse US City ZIP Code Lookup is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Returns all ZIP codes with coordinates for a given US city and state code, sourced from Zippopotam.us postal data.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-postal-us-city-zips
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-us-city-zip-code-lookup-77a43a9d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hsalt1dI8p8vkkNPAgpof

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability suverse-us-city-zip-code-lookup-77a43a9d -d '<json body>'
```

Example prompt: Can you get me all the ZIP codes and their coordinates for Denver, Colorado? I need them for territory mapping.

## When to prefer this

Use this endpoint when you need a comprehensive list of all ZIP codes within a specific US city along with their geographic coordinates. It is ideal for territory mapping, delivery zone configuration, and address validation workflows where you need city-level postal granularity. Prefer this over manual lookups or geocoding APIs when you need the full ZIP code inventory for a city rather than a single coordinate.

## Known failure modes

- Invalid or unrecognized state code returns an error or empty result
- City name misspelling or non-existent city returns empty or null results
- Cities spanning multiple counties or with ambiguous names may return incomplete results
- Rate limiting or payment failure ($0.06 USDC x402) blocks the request
- Non-US locations are not supported by this endpoint

## How this service works

Given a US state code and a city name, return every ZIP code in that city with coordinates. Useful for territory mapping and address validation. Free Zippopotam.us postal data.

## Output

A list of all ZIP codes belonging to the specified US city and state, each accompanied by geographic coordinates (latitude and longitude), sourced from Zippopotam.us free postal data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/suverse-us-city-zip-code-lookup-77a43a9d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)