Email Reputation Score

x402

Email Reputation Score is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-10-10).

Calculates a 0-100 trust/risk score for an email address by assessing domain age, MX configuration, disposable domain detection, and provider reputation.

Price / call$0.0324

Seller volume →—

Success—

StatusUnknown

How this service works

Calculate a trust score for an email address. Assesses domain age, MX configuration, disposable domain detection, and email provider reputation. Returns a 0-100 risk score.

Output

A numeric risk score between 0 and 100, where higher values indicate higher risk. Includes sub-signals such as domain age, MX record configuration, whether the domain is a known disposable email provider, and overall email provider reputation.

Example use cases

Example prompt

“What's the trust score for john.doe@tempmail.org — is it a disposable address or from a reputable provider?”

Technical details

Endpoint

GEThttps://api.strale.io/x402/email-reputation-score?utm_source=zero.xyz

When to prefer

Use this endpoint when you need a composite, multi-signal email risk score rather than a simple format check or single-factor validation. Ideal for fraud prevention pipelines, user signup screening, KYC/AML workflows, or any scenario where you need to distinguish legitimate email addresses from disposable, newly registered, or low-reputation ones.

Side effects

Invalid or malformed email address returns a 400 error
Domain with no MX records may result in maximum risk score
Unknown or very new domains may yield conservative high-risk scores
Payment failure or insufficient USDC balance returns a 402 error

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "email": "test.user@gmail.com"
    }
  }
}

Schema · Request body

Field	Type	Description
emailrequired	string	Email address to score

Output

{
  "_meta": {
    "payment": {
      "method": "x402",
      "price_usd": 0.0324,
      "settlement_id": "0xa9198a612c1c1b3f35ea25d5788bf8a94e00e75f842ca4fb535e159e8484fed0"
    },
    "capability": "email-reputation-score",
    "latency_ms": 2,
    "provenance": {
      "source": "strale-email-reputation",
      "fetched_at": "2026-06-03T23:11:05.285Z"
    }
  },
  "email": "test.user@gmail.com",
  "domain": "gmail.com",
  "factors": [
    {
      "detail": "gmail.com is a well-known email provider",
      "factor": "reputable_provider",
      "impact": 18
    },
    {
      "detail": "5 MX record(s) found",
      "factor": "valid_mx",
      "impact": 10
    },
    {
      "detail": "Local part suggests non-personal address",
      "factor": "suspicious_local",
      "impact": -10
    }
  ],
  "risk_level": "medium",
  "email_valid": true,
  "provider_type": "major_provider",
  "reputation_score": 68
}

Schema · Response

{
  "email": {
    "type": "string"
  },
  "factors": {
    "type": "array"
  },
  "risk_level": {
    "type": "string"
  },
  "email_valid": {
    "type": "boolean"
  },
  "reputation_score": {
    "type": "integer"
  }
}

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