Prepare CSV, TSV, and TXT inputs correctly.
Guidelines for preparing high-volume bulk verification files, international E.164 phone formatting, RFC 5322 email syntax, and column mapping conventions.
phone_number,customer_id,country_code,first_name
+14155552671,CUST_1001,US,Alex
+447700900123,CUST_1002,GB,Jordan
+61491570156,CUST_1003,AU,TaylorAll requests require Bearer authorization with high-entropy secret tokens.
Bearer pv_live_...→Prevent duplicate jobs and safe automatic retries using 24h unique keys.
Idempotency-Key: uuid→Predictable Token Bucket model at 100 req/s with standard Retry-After headers.
100 req/s burst→Strict date-based compatibility guarantees with 12-month deprecation windows.
v1 (2026-08-11)→Test API Requests in Real Time
Build and simulate verification requests directly in your browser. Generates live code snippets and previews the exact response schema.
Configure request parameters and click Send Request to preview live execution.
Supported File Types & Limits
File SpecsFile formats supported across API and Customer Console.
phoneveriflo natively parses .csv, .tsv, .txt, and .xlsx files. Maximum file size: 50 MB or 100,000 rows per job file.
Live E.164 International Phone Normalizer
Type unformatted domestic numbers or international variations to test preflight normalization.
| Original Input | Detected Country | Canonical E.164 Output | Status |
|---|---|---|---|
(415) 555-2671 | US / CA | +14155552671 | Valid |
+44 7700 900123 | United Kingdom | +447700900123 | Valid |
0491 570 156 | US / CA | +10491570156 | Valid |
+49 (0) 30 123456 | Germany | +49030123456 | Valid |
Common Integration Questions
What happens if my file has unexpected extra columns?
Extra columns (such as Customer ID, First Name, Address) are safely passed through into the canonical export, preserving your original data structure.
Related Guides & API References
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