# Bulk Email Verifier

> Bulk Email Verifier is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Verifies up to 20 email addresses in a single call, returning syntax, MX, disposable, role-address, free-provider flags, mail provider, deliverability verdict, and a batch summary.

## Facts

- Endpoint: GET https://intel.rallylive.ca/bulk/email-verify
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bulk-email-verifier-2ebb4267
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MVsXxV6_ttB22oos5m9_l

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 bulk-email-verifier-2ebb4267
```

Example prompt: Can you verify this batch of 15 email addresses for me and tell me which ones are deliverable, which are disposable or role-based, and who their mail providers are?

## When to prefer this

Choose this endpoint when you need to verify multiple email addresses at once at very low cost ($0.01 for up to 20), especially for email list hygiene, pre-send campaign cleaning, or CRM audits. It is more cost-efficient than single-address verification endpoints when processing lists. Prefer it over single-address email verification when handling batches of 2–20 addresses per operation.

## Known failure modes

- Missing or empty email list input returns an error
- More than 20 addresses per call may be rejected or truncated
- Malformed query parameters return a 400-level error
- MX lookups may time out for obscure or slow DNS zones
- Disposable provider database may not cover very new throwaway domains
- Payment failure via x402 protocol prevents the call from completing

## How this service works

Bulk email verification: up to 20 addresses in one $0.01 call. For each: syntax, MX presence, disposable and role-address flags, free-provider flag, mail provider and a deliverable verdict with reason, plus a summary count. Email list cleaning at a twentieth of the per-address price.

## Output

For each email address: syntax validity, MX record presence, disposable flag, role-address flag, free-provider flag, detected mail provider name, deliverability verdict (e.g. deliverable/undeliverable/risky), and a reason string. Also includes an overall batch summary with counts per verdict category.

## 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/bulk-email-verifier-2ebb4267/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)