For vendors
One POST. The marketplace does the rest.
Sign each lead with your per-source secret and send it. Field mapping normalizes your schema, tier routing finds the highest-paying eligible lane, and the cascade keeps moving inventory until it clears.
Paid for what clears, not what you send.
Tier routing
Each source maps to lanes by priority — premium inventory enters high, aged data enters low. You see exactly which lane bought each lead.
Cascade fill
Unsold leads re-auction down the fallback chain automatically. The terminal Overflow tier means fill rates stay honest and high.
Quality loop
Dispute rates and buyer dispositions roll up into a per-source score. Strong sources earn priority routing; weak ones see it coming.