John M. Lax here, founder at SureConnect.
No data provider will offer a free API to check their data against another source — not now, not ever. They sell data, so giving away comparisons doesn’t align with their business model.
Sure, it would save sales teams time and money, but they want to monetize every record.
I’ve tried pitching a model where SureConnect flags bad numbers so providers can update or remove them without charging customers — but so far, no one’s been open to it.
