MoltSets

MoltSets is an API first B2B enrichment service, deliberately scoped to five operations: people search, company search, email enrichment, phone enrichment, and email validation. There is no dashboard by design. Consumption is over REST or a native MCP server, which is the point of the product: it is meant to sit underneath an orchestration tool such as Clay or a coding agent, not beside it. The vendor describes an in house database that falls through to a multi vendor waterfall when a record is missing, and returns business and personal emails with a risk score plus carrier verified mobile numbers. Its developer site publishes a genuine OpenAPI 3.1.0 specification.

Two caveats belong in front of any evaluation, and both come from the vendor own materials. First, MoltSets entered closed beta around June 2026, so it is roughly two months old, access is by enrollment form rather than self serve signup, and there is no independent review base on G2 or Capterra to corroborate its data quality claims. Second, the unlimited framing is about pricing, not physics: the FAQ concedes the service is limited by rate limits, using burst and pause windows with weekly record caps, and the API returns remaining record counters. Third party vendor data also draws separate token charges. The company is bootstrapped, founded by Adam Robinson, and its parent is Retention.com, which also owns RB2B.