CoinW Checker: bulk CoinW verification, API & CSV output guide

CoinW exchange checker helps compliance see if a contact is linked to an exchange account.

CoinW Checker (coinw) is Cheker.pro bulk CoinW verification. This guide covers mass phone checks, coinw API, phone intelligence, list hygiene before SMS/messengers, and CSV export for CRM.

Who it is for

CoinW Checker is used by SMS hubs, performance marketing, crypto compliance, call centers and SaaS with Reseller API. If your pipeline segments «has CoinW / not» — this task type covers bulk at scale.

What CoinW Checker does

CoinW account verification. Each input line becomes one CSV row with result fields.

Task type: coinw. Family: CoinW. Input type: phone.

Pricing and output on CoinW Checker landing. Run tasks in dashboard.

Input file format

Upload TXT or CSV: phone numbers in international format (E.164 recommended, e.g. +14155552671). One file = one country only (country code in every line: Brazil 55, US 1, Russia 7).

• Minimum: 2,000 lines per task
• Maximum: 10,000,000 lines (large files auto-split)
• E.164 recommended: +country code, no spaces or brackets
• See format preview in the upload form at CoinW Checker

Do not mix phone, email and username in one file. From Excel export a single column to CSV — avoid formulas and scientific notation.

Output fields

• Number
• coinw: yes/no

Interpret Number · coinw: yes/no with a clear rule: «yes» → CoinW channel candidate; «no» → SMS/email fallback or exclude from campaign.

Use cases

• Marketing runs a separate sequence for "CoinW: yes".
• Marketing runs a separate sequence for "CoinW: yes".
• Marketing runs a separate sequence for "CoinW: yes".

How to run a check

1. Sign up at Cheker.pro and top up USDT
2. Open CoinW Checker — TXT/CSV upload form
3. Wait for completion in «Мои задачи»
4. Download CSV into CRM / SMS hub / BI
5. Automation: Reseller API — coinw

Common mistakes

• Local format without country code → false «no» results.
• Mixed countries in one file → API rejection or wrong output.
• Confusing CoinW registration with «number is reachable» — different signals.
• Treating «no» as permanent block without re-check after 7–14 days.
• Bulk-check without legal basis (GDPR / local telecom rules) — validation does not replace consent.

Crypto compliance

CoinW signal confirms registration trace, not ownership. Combine with velocity and device ID.

Related CoinW checkers

• CoinW Email Checker (coinw_email) — CoinW email account validation and detection

FAQ

How is CoinW Checker different from other CoinW checkers?

Task type coinw: CoinW account verification. Output: Number · coinw: yes/no. Compare family variants in the checker catalog and coinw landing.

Minimum batch size and file format for coinw?

Minimum 2,000 lines. phone numbers in international format (E.164 recommended, e.g. +14155552671). One country per file. Format hints on the upload page.

How much does CoinW Checker cost?

Pay-as-you-go USDT: per-line billing at checker rate. Current price per 10k lines on the coinw card and dashboard after top-up.

API for CoinW Checker?

Yes. Reseller API: POST /api/v1/check with task type coinw. Keys: API keys, docs: /docs.

Is bulk checking legal?

Use only lists with opt-in or other lawful basis (GDPR, local rules). Cheker.pro acts as processor on your instructions; you define retention and consent policy.

Summary: CoinW Checker is the bulk layer for CoinW. Catalog: coinw · run → · Cheker.pro blog