# catch-all-hint-bulk

> catch-all-hint-bulk 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).

Checks up to 20 domains in one concurrent call to determine if each has a catch-all (accept-all) mailbox configuration, returning results in input order with per-item errors.

## Facts

- Endpoint: GET https://intel.rallylive.ca/bulk/email/catch-all-hint
- 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/catch-all-hint-bulk-08922414
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_48tDn9IIj4_m7fOfnmb7z

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 catch-all-hint-bulk-08922414
```

Example prompt: Check all 20 domains in my prospect list — acme.com, globex.io, initech.net, and 17 others — to see which ones have catch-all mailbox configurations so I know which email addresses might be risky to send to.

## When to prefer this

Use this endpoint when you have a list of 2–20 domains and need catch-all mailbox hints for all of them efficiently in a single paid call rather than making multiple sequential single-domain requests. It is the right choice for lead enrichment pipelines, cold outreach pre-screening, and email verification workflows where batch throughput matters and you want results in the same order as your input.

## Known failure modes

- Invalid or malformed domain names return per-item errors without failing the whole batch
- Exceeding 20 domains per call results in a request error
- Network timeouts on individual domains contribute to the failure count
- Domains with no MX records may return indeterminate catch-all status
- Rate limiting or payment failure blocks the entire batch call

## How this service works

Bulk catch all hint: up to 20 domains in one call, processed concurrently, results returned in input order with a per-item error field and a count of failures. Same answer per item as the single /email/catch-all-hint endpoint (Catch-all mailbox hint). Batch enrichment for agents that hold a list. $0.01 per batch.

## Output

An ordered array of per-domain results matching the input order, each containing the catch-all hint status (same answer as the single /email/catch-all-hint endpoint), a per-item error field if the lookup failed, and a top-level count of total failures across the batch.

## 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/catch-all-hint-bulk-08922414/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)