# Phone Number Intelligence Lookup

> Phone Number Intelligence Lookup is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-31).

Looks up metadata and intelligence for a phone number, including carrier, line type, and related attributes, via a pay-per-call x402 micropayment endpoint.

## Facts

- Endpoint: GET https://x402helper.xyz/89e509/phone/intel?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phone-number-intelligence-lookup-531f0a28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PJEJPNRi2R3XDgCMAAAN9

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 phone-number-intelligence-lookup-531f0a28
```

Example prompt: Can you look up the carrier and line type for the phone number +14155552671?

## When to prefer this

Choose this endpoint when you need per-call phone number intelligence at low cost ($0.006 USDC) and are already operating in an x402 micropayment-enabled agent environment. It is suitable for one-off lookups, CRM enrichment, pre-send validation for messaging campaigns, or fraud screening pipelines where paying per lookup is preferable to a monthly subscription. Supports both E.164 and national format inputs with optional country code.

## Known failure modes

- Missing required 'number' query parameter returns an error
- Invalid or unrecognizable phone number format may return an empty or failed result
- Number provided without country code in national format without 'country' param may fail to parse
- Payment failure via x402 protocol blocks access entirely
- Rate limiting or quota exhaustion may return a 402 or 429 error

## How this service works

X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.

## Output

Returns a JSON object with a 'result' field containing phone number intelligence data (such as carrier, line type, country, and validation status) and a 'success' boolean indicating whether the lookup succeeded.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "number"
     ],
     "properties": {
      "number": {
       "type": "string",
       "default": null,
       "description": "Phone number. E.164 (e.g. +14155552671) or a national number when 'country' is also given."
      },
      "region": {
       "type": "string",
       "default": null,
       "description": "Alias of 'country' (ISO-3166 alpha-2)."
      },
      "country": {
       "type": "string",
       "default": null,
       "description": "Optional ISO-3166 alpha-2 country code (e.g. US, GB, DE) for national-format input."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {},
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phone-number-intelligence-lookup-531f0a28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402helper.xyz](https://www.zero.xyz/host/x402helper.xyz/llms.txt)