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Parse and Validate a Phone Number with Uproc

Parse and validate the format of a phone number using Uproc.

Parse and validate a phone number using Uproc.

Setup

The workflow uses Uproc’s legacy v2 process API. In Open Flow, create secret Variables for the Uproc account email and API key and bind them to Auth Username and Auth Password in Parse the phone number. Run with a phone number, including its international prefix.

In n8n, connect a Uproc API credential and set the phone number in Create Phone Item. Run either format manually.

Behavior

Each run submits a phone number for Uproc to parse and check its format and prefix. Each response item is marked valid when its message.valid value converted to text equals true, matching the source condition. Open Flow returns each item with a valid flag in the results array. n8n routes matching and nonmatching items to the true and false outputs of Phone is Valid?. An array response is treated as individual items in both formats. The response data is retained without filtering. Request failures stop the run. Open Flow has a 30-second HTTP timeout, a 4 MiB response limit, and a 1 MiB Code output limit.

Inspiration & credits

Changes to the source

Open Flow accepts the phone number as a run input and exposes the branch decision alongside each result.

Adapted from Verify phone numbers in Zie619/n8n-workflows. The matching n8n community listing credits Miquel Colomer. The original template does not state a separate license.

The collection’s MIT notice is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see repository licensing.

MIT License

Copyright (c) 2025 Zie619

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.