Compare Mossaik and vector.express free tiers side by side. Pricing, limits, change history, and risk assessment for developers.
We are not publishing a free-tier verdict for either Mossaik or vector.express. The page we cite for Mossaik states no amount, tier or rate we can read when we last looked, on 2026-10-13. The page we cite for vector.express states no amount, tier or rate we can read when we last looked, on 2026-10-13. We are not comparing the two pricing histories.
A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn and not restored, a product retired — does not lapse with time. A badge carrying a date states the record it rests on; a badge with no date rests on no record in force.
No recorded pricing changes for Mossaik.
No recorded pricing changes for vector.express.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
curl https://agentdeals.dev/api/changes?vendor=Mossaik
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Mossaik
curl https://agentdeals.dev/api/changes?vendor=vector.express
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=vector.express