# Rotary Agency ZIP Code Lookup API

> Rotary Agency ZIP Code Lookup API is a paid API for AI agents from rotaryagency.uk, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-15).

Looks up structured location data (city, state, county, timezone, coordinates, etc.) for a given US ZIP code

## Facts

- Endpoint: GET https://rotaryagency.uk/api/free/zip?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rotary-agency-zip-code-lookup-api-a8582ebf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LJgs8ZQdKKL5CaIpydcWn

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 rotary-agency-zip-code-lookup-api-a8582ebf
```

Example prompt: What city, state, and county does ZIP code 90210 belong to, and what timezone is it in?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call ZIP code lookup without a subscription, especially in agentic workflows where you only need occasional ZIP-to-location resolution. At $0.002/call it is cost-effective for low-to-medium volume use. Prefer alternatives if you need bulk batch processing or international postal code support.

## Known failure modes

- Invalid or non-existent ZIP code returns an error or empty result
- Non-US ZIP codes may not be supported
- Malformed ZIP code (wrong length or non-numeric) returns a validation error
- Rate limiting or payment failure results in a 402 or 429 response

## How this service works

Free-source data APIs (100% margin, no proxy, $0.002/call): ...

## Output

Returns a structured JSON object containing location details for the given ZIP code, typically including city name, state, county, latitude, longitude, timezone, and potentially area code or population data.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "varies": "endpoint-specific structured JSON"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rotary-agency-zip-code-lookup-api-a8582ebf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rotaryagency.uk](https://www.zero.xyz/host/rotaryagency.uk/llms.txt)