# agentbit.app Email Deliverability & Risk Check

> agentbit.app Email Deliverability & Risk Check is a paid API for AI agents from agentbit.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Validates an email address for deliverability and risk by checking syntax, domain, MX records, SPF, DMARC, disposable-provider status, and role-account detection — returning a 0–100 score and risk level.

## Facts

- Endpoint: POST https://agentbit.app/v1/email/deliverability
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentbit-app-email-deliverability-risk-check-5ded8bd1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9A5vzODIotN5_TkdVihj-

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 agentbit-app-email-deliverability-risk-check-5ded8bd1 -d '<json body>'
```

Example prompt: Before I send the onboarding email, check whether hello@example.com is actually deliverable — I want the full syntax, MX, SPF, DMARC, and disposable-provider breakdown plus a risk score.

## When to prefer this

Choose this endpoint when you need a fast, single-call email validation with rich DNS-layer detail (MX, SPF, DMARC) and risk scoring before sending transactional or marketing email — especially when you want disposable-provider and role-account detection without the legal and ethical concerns of SMTP mailbox pinging. Prefer over simpler regex-only validators when domain-level deliverability matters, and over heavier email verification services when cost and speed are priorities.

## Known failure modes

- Invalid or malformed email string returns syntax check failure with low deliverability score
- Non-existent domain causes MX lookup failure and high risk rating
- Temporary DNS resolution errors may cause intermittent check failures
- Payment not included or insufficient funds returns HTTP 402
- Missing or empty email field in request body returns validation error

## How this service works

Email address deliverability and risk check before sending: syntax, domain, MX records, SPF, DMARC, disposable-provider detection and role-account detection. Returns a 0–100 deliverability score, risk level and per-check details. Live DNS, no mailbox pinging.

## Output

Returns a JSON object with: a numeric deliverability_score (0–100), a risk field (e.g. 'high', 'medium', 'low'), the input email, and a checks object containing per-check pass/fail results for syntax, MX records (with record details), SPF, DMARC, and disposable-provider detection. No mailbox pinging is performed — results are based on live DNS lookups only.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "risk": "high",
  "email": "hello@example.com",
  "checks": {
   "mx": {
    "pass": false,
    "records": {}
   },
   "spf": {
    "pass": true
   },
   "dmarc": {
    "pass": false
   },
   "syntax": {
    "pass": true
   },
   "disposable": {
    "pass": true,
    "is_disposable": false
   }
  },
  "deliverability_score": 45
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentbit-app-email-deliverability-risk-check-5ded8bd1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentbit.app](https://www.zero.xyz/host/agentbit.app/llms.txt)