I Built a Phone Validation API — Live on RapidAPI published: true tags: python, fastapi, api, productivity
Pablo Cueto has developed a Phone Validation API that offers comprehensive phone number validation capabilities. The API can validate formats, detect country and region, identify carriers, and determine line types. It is built using FastAPI and Python, and is available for use on RapidAPI with a free tier for testing.
- ▪The Phone Validator Pro API validates phone numbers in various formats including E.164 and international formats.
- ▪It can detect the country, region, timezone, and carrier/operator of the phone number.
- ▪The API supports batch validation for up to 100 numbers per request.
DEV.to (Top) files mainly under programming. We currently carry 4,924 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/pabscueto/i-built-a-phone-validation-api-live-on-rapidapi-published-true-tags-python-fastapi-api-a9g |
| Publication time | Sat, 16 May 2026 19:48:28 +0000 |
| Retrieval time | 2026-05-16T20:10:19.039Z |
| Last seen | 2026-05-16T20:10:19.039Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | _IZFmeFCjqV5 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3931788) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Ing. Pablo Cueto Posted on May 16 I Built a Phone Validation API — Live on RapidAPI published: true tags: python, fastapi, api, productivity #python #fastapi #productivity #api Validating phone numbers sounds simple until you realize regex won't tell you if a number is mobile, landline, or VoIP — or what country it belongs to. I built Phone Validator Pro, a REST API that does all of that in a single request.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
