Comparison
wavalid vs. WASBB
How wavalid compares to WASBB's Bulk WA Number Checker Chrome extension for validating numbers before you send.
Best fit for teams that need automation beyond the browser
WASBB handles large local uploads well, up to 100,000 rows, entirely inside Chrome. wavalid checks numbers through its own systems rather than your WhatsApp Web session, and adds a REST API and MCP server on top of bulk CSV and a Chrome extension.
Try wavalid freeBest overall
wavalid, for one credit price, bulk CSV, an API, and an MCP server.
Best for very large local-only uploads
WASBB, if you want to process up to 100,000 rows locally in the browser without an API.
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 WASBB falls short
Runs against your own WhatsApp Web session
As a Chrome extension, checks run through your logged-in WhatsApp Web account rather than a separate backend.
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, no dashboard
Checks and history live inside the extension, with no hosted dashboard to revisit results from another device.
Want checks that don't depend on your own WhatsApp Web session?
Try wavalid freeFeature by feature
| Feature | wavalid | WASBB |
|---|---|---|
| Real-time single check | ||
| Bulk CSV validation | yes, up to 100,000 rows | |
| REST API | Not offered | |
| MCP server | Not offered | |
| Chrome extension | ||
| Requires your own WhatsApp Web login | ||
| Country coverage | 195+ | Global, 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 to a dashboard you can revisit.
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. WASBB, answered
See how wavalid checks a list
Validate a sample list in minutes, no credit card required.