# Email List Hygiene Report

> Email List Hygiene Report is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Analyzes up to 50 email addresses in one call and returns a hygiene report with duplicate detection, syntax validation, disposable/role/free-webmail flagging, MX record checks, and a keep/review/remove split.

## Facts

- Endpoint: GET https://intel.rallylive.ca/email/list-hygiene
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/email-list-hygiene-report-a4de8118
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v-lDwoarkZhCM7kTor1Tc

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 email-list-hygiene-report-a4de8118
```

Example prompt: Can you run a hygiene check on these email addresses from our latest signup form — flag any duplicates, invalid syntax, disposable domains, role addresses, and tell me which ones to keep, review, or remove?

## When to prefer this

Choose this endpoint when you need a fast, low-cost ($0.01) batch hygiene check on a small email list (up to 50 addresses) that combines multiple quality signals — syntax, MX, disposable, role, duplicates — into a single actionable keep/review/remove report. Prefer it over single-address validators when you need a holistic list-level analysis and segmentation in one call, especially before sending email campaigns or importing into a CRM or ESP.

## Known failure modes

- Input list exceeds 50 addresses — the endpoint only supports up to 50 per call
- Malformed or missing input parameter results in a 400 error
- MX lookup may time out for slow DNS resolvers, potentially misclassifying valid domains
- Disposable domain detection depends on a domain blocklist that may not cover brand-new disposable providers
- Payment failure or insufficient USDC balance returns a 402 error

## How this service works

Email list hygiene report for up to 50 addresses in one $0.01 call: duplicates, invalid syntax, disposable domains, role addresses, free-webmail share, domains without MX, and a keep / review / remove split. Clean a signup or CRM list before sending.

## Output

Returns a structured hygiene report covering: duplicate address list, syntax-invalid addresses, disposable domain detections, role address detections (e.g. info@, support@), free-webmail share percentage, domains missing MX records, and a three-way split of the input list into keep / review / remove categories.

## 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",
     "properties": {}
    }
   },
   "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/email-list-hygiene-report-a4de8118/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)