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Email Validator API (via X402-BROKER)
x402
Email Validator API (via X402-BROKER) is a paid API for AI agents from mcp-gateway.agentdiet.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-22).
Validates an email address and returns structured validation results, settling payment in USDC on Base via the x402 protocol.
Price / call$0.005
Success—
StatusUnknown
How this service works
Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.
Output
Returns a JSON object with a 'status' field ('ok' on success) and a 'data' object containing the validation result for the submitted email address. Also includes a 'roi_proof' object with a compression_ratio_pct metric.
Example use cases
Pre-send email validation for outreach
“Before I send this cold email campaign, can you validate 'prospect@startupxyz.io' to make sure it's a real, deliverable address?”
User registration email check
“Someone just signed up with the email 'user123@tempmail.org' — can you validate it to see if it's a legitimate address or a throwaway?”
CRM data cleanup
“I have a contact in my CRM with the email 'sarah.jones@oldcompany.net' — can you verify whether that email address is still valid?”
Technical details
Endpoint
GEThttps://mcp-gateway.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-use, agent-native email validation call settling in USDC via the x402 protocol, especially within an agentic or MCP workflow on Base. It is well-suited for one-off or low-volume email checks where you want to avoid subscription-based email validation SaaS. Prefer alternatives (e.g. ZeroBounce, NeverBounce) for high-volume bulk validation.
Side effects
- Missing 'email' query parameter — returns error or empty data
- Invalid email format passed as input — may return invalid/false validation result
- Payment failure via x402/USDC — 402 Payment Required response
- Gateway timeout or upstream service unavailability — 5xx error
- Unsupported HTTP method — only GET and POST accepted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "ok",
"roi_proof": {
"compression_ratio_pct": 91.4
}
}
}Tags
x402
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