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JSON Email Fields Check
x402
JSON Email Fields Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-12).
Validates and normalizes email address fields within a JSON object or array of field values, returning counts, normalized values, and a versioned deterministic result.
Price / call$0.001
Success—
StatusUnknown
How this service works
JSON Email Fields Check: JSON Email Fields Check checks selected fields for bounded email address shape from bounded caller-supplied values without an external provider. Call JSON Email Fields Check before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Email Fields Check as versioned deterministic JSON. Price: $0.001 USD…
Output
Returns a versioned deterministic JSON result containing: validation findings per field (pass/fail), normalized email values, counts of valid vs. invalid entries, and a versioned result contract identifier. No external calls or data retention occur.
Example use cases
Pre-pipeline email field validation
“I'm about to push this batch of user records to our email marketing platform — can you check the 'email' and 'contact_email' fields in each JSON object to make sure they're properly formatted before we send them over?”
Agent handoff data quality gate
“Before you pass this structured form submission to the downstream booking tool, validate that the 'user_email' and 'cc_email' fields are valid email addresses and return the normalized values and any that failed.”
Onboarding form payload check
“We just received a new onboarding JSON payload with fields including 'primary_email', 'admin_email', and 'billing_email' — can you run an email format check on all three and tell me how many passed, which normalized correctly, and if any are malformed?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/json-email-fields-checkWhen to prefer
Choose this endpoint when you need a lightweight, self-contained, in-memory email format check on specific fields of a JSON object without relying on an external email validation service. It is especially well-suited as a pre-flight gate before handing structured data to a downstream tool with a strict contract, or when you need deterministic, versioned validation results for auditability. Prefer alternatives if you need MX record verification, deliverability scoring, or bulk email list enrichment.
Side effects
- Field names provided do not exist in the supplied object — endpoint may return zero matches or empty findings
- Malformed input JSON object causing a parse or schema error
- Fields array exceeds 256 items or object exceeds 128 properties — returns a bounds error
- Email strings that are syntactically ambiguous may yield indeterminate validation results
- Network or payment (x402) failure before the call completes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fields | array | Fields supplied to JSON Email Fields Check; used only for this bounded calculation and processed in memory without retention. |
| object | object | Object supplied to JSON Email Fields Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"passed": true,
"invalid_fields": []
},
"schema": "delx/util-json-email-fields-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "14a697153fc689e4765cb0c2d3675e79a6a20064fbebc18292ed7e83b508bf1e",
"external_calls": 0
},
"operation": "data_batch:json_email_fields_check"
}
}Tags
x402
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