# Address Validator

> Address Validator is a paid API for AI agents from kder-ai.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-28).

Validates, standardizes, and geocodes a US delivery address, returning parsed fields, carrier deliverability score, and coordinates as JSON.

## Facts

- Endpoint: POST https://kder-ai.com/validate?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/address-validator-e2e6b6cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BfZki9AzKbT21PSAtYCDp

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 address-validator-e2e6b6cd -d '<json body>'
```

Example prompt: Can you validate this shipping address and tell me if it's deliverable — 123 Main St, Springfield, IL 62701?

## When to prefer this

Choose this endpoint when you need combined address parsing, USPS-style carrier deliverability scoring, and geocoding in a single call for US addresses — particularly before storing an address in a database or initiating a shipment. It is well-suited for e-commerce checkout flows, CRM data cleansing, and logistics pre-validation where a deliverability confidence score matters alongside coordinate lookup.

## Known failure modes

- Address not found in provider database — returns low or zero deliverability score
- Invalid or missing required fields (street, city, state, ZIP) — returns 400-level error
- Non-US addresses may have reduced accuracy since service is US-optimized
- Ambiguous address with multiple possible matches — may return lowest-confidence result or require disambiguation
- Payment failure (insufficient USDC balance) — request rejected before processing

## How this service works

Validate and standardize a delivery address: parsing, provider verification (US-optimized), geocoding and a deliverability score, as JSON. 0.02 USDC per call on Base. Useful before shipping to or storing an address.

## Output

A JSON object containing the standardized address fields (street, city, state, ZIP), geocoordinates (latitude/longitude), a deliverability score indicating how likely the address can receive mail or packages, and any corrections or parsing notes applied during validation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "object",
   "required": [
    "street",
    "city",
    "state",
    "zip"
   ],
   "properties": {
    "zip": {
     "type": "string"
    },
    "city": {
     "type": "string"
    },
    "state": {
     "type": "string"
    },
    "street": {
     "type": "string"
    },
    "country": {
     "type": "string",
     "default": "US"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/address-validator-e2e6b6cd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kder-ai.com](https://www.zero.xyz/host/kder-ai.com/llms.txt)