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Email Typo Suggestion API
x402
Email Typo Suggestion API is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Suggests corrections for common email address typos, catching domain and TLD errors via Levenshtein distance against 23 popular domains
Price / call$0.005
Success—
StatusUnknown
How this service works
Suggest typo corrections for an email address. Catches domain typos (gmial.com → gmail.com) and TLD typos (.con → .com) via Levenshtein distance against 23 common domains. Use ?email=user@gmial.con. Built for AI agents validating signup forms, reducing bounce rates.
Output
Returns a suggested corrected email address where domain or TLD typos are detected, using Levenshtein distance comparison against 23 common email domains. Includes the original input, the suggested correction, and likely the specific part corrected (domain or TLD).
Example use cases
Example prompt
“The user just typed 'john.doe@gmial.con' into our signup form — can you check if that email has a typo and suggest what they probably meant?”
Technical details
Endpoint
GEThttps://api.x402node.dev/identity/email-suggestWhen to prefer
Use this endpoint when validating user-submitted email addresses at signup or form submission time, especially to catch common typos like gmial.com, yahooo.com, or .con TLDs before sending transactional emails. Prefer this over full email validation services when you specifically need typo correction suggestions rather than deliverability checks or MX record lookups.
Side effects
- No suggestion returned if the email is already valid or matches a known domain
- False positives for legitimate obscure domains not in the 23-domain reference list
- Payment failure if USDC balance is insufficient (x402 protocol error)
- Malformed email input may return error or no suggestion
- Edge cases with subdomains or internationalized email addresses may not be handled
Input
{
"email": "john.doe@gmial.con"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_hint": "x402 paid endpoints for AI agents — x402node.dev (utilities) · cn402.com (Chinese culture)",
"input": "john.doe@gmial.con",
"domain": "gmial.con",
"confidence": "medium",
"local_part": "john.doe",
"suggestion": "john.doe@gmail.com",
"suggested_tld": "com",
"is_known_domain": false,
"suggested_domain": "gmail.com",
"domain_typo_distance": 2
}Tags
x402
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