Similarity API Data Matching Tools
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Data Instantly
One platform, two ways to use it. A high-throughput matching API for builders, and Clean — five no-code tools that get you results in minutes. No sub. No install.
API · For builders
Similarity API
Deduplication & reconciliation across large, complex datasets — for teams who care about control, scalability and reliability.
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"We pipe millions of records through the API every day. Throughput is rock-solid and the docs are actually usable — a big upgrade from our old in-house setup."
Alex Chen
Lead Engineer · Series B SaaS
"My team uses the Diff and the Join Clean tools weekly — saves us multiple hours each! Very happy we discovered it."
Jeff Morales
Ops Manager · E-commerce
"The deduplication tool caught fuzzy duplicates our CRM export missed. I had results in under a minute and no one had to write a script."
Sarah Okafor
RevOps · B2B SaaS