Comparison
wavalid vs. WA Number Bulk Checker
How wavalid compares to WA Number Bulk Checker, a Chrome extension for verifying WhatsApp numbers, for validating lists before you send.
Best fit if you need an API, not just a browser extension
WA Number Bulk Checker runs entirely inside Chrome against your own WhatsApp Web session. wavalid checks numbers through its own systems, so nothing touches your WhatsApp account, and it also ships a REST API and MCP server for automation.
Try wavalid freeBest overall
wavalid, for one credit price, bulk CSV, an API, and an MCP server.
Best for a free one-off browser check
WA Number Bulk Checker, if you only need an occasional check inside Chrome and don't mind using your own WhatsApp Web session.
Best developer fit
wavalid's REST API and MCP server plug straight into AI agents and pipelines.
Evaluation criteria
Bulk support, pricing clarity, WhatsApp focus, and account safety.
Where WA Number Bulk Checker falls short
Runs against your own WhatsApp Web session
As a Chrome extension, it checks numbers through your logged-in WhatsApp Web account rather than a separate backend, which ties results to your own account being active.
No REST API or MCP server
It's browser-only, so there's no way to call it from a backend job, CRM automation, or AI agent.
Chrome-only
Checks can only be run from a desktop browser with the extension installed, not from a dashboard, mobile, or server.
Want checks that don't depend on your own WhatsApp Web session?
Try wavalid freeFeature by feature
| Feature | wavalid | WA Number Bulk Checker |
|---|---|---|
| Real-time single check | ||
| Bulk CSV validation | ||
| REST API | Not offered | |
| MCP server | Not offered | |
| Chrome extension | ||
| Requires your own WhatsApp Web login | ||
| Country coverage | 195+ | Not stated |
| Pricing model | Credits | Free extension |
Which should you choose?
Choose based on whether you need backend automation, account safety, or a fully self-serve browser tool.
For quick one-off checks
wavalid's free single-number test or Chrome extension, without logging into your own WhatsApp Web session.
For agencies and marketers
wavalid's bulk CSV upload at one flat credit price, with results saved for later.
For developers
wavalid's REST API and MCP server return single or bulk WhatsApp checks with predictable response fields, ready for AI agents.
wavalid vs. WA Number Bulk Checker, answered
See how wavalid checks a list
Validate a sample list in minutes, no credit card required.