Unkey offers a free tier ("Free"). We are not publishing a free-tier verdict for Zuplo. The only record that would rate Zuplo is a change we could not check against an archived copy of Zuplo's page, so we are not publishing a rating for it. We are not publishing a stability rating for Zuplo. 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180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn and not restored, a product retired — does not lapse with time.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.
API key management. The "Free" plan is priced at 0 USD / mo and lists "1k API keys", "150K valid requests / mo", "7-day logs retention", "30-day audit log retention" and "Unlimited APIs".
Free tier includes 100K requests / month. Custom domains are $25/mo for 2 domains (max).
Pricing Change History
Unkey
increasedeffective 2026-11-05low impact
On November 5, 2026, Unkey's pricing page raised the Free API plan's log retention from 1 day to 7 days and its audit log retention from 3 days to 30 days. Pro went from 7 and 14 days to 90 days of each. Unkey's commit is titled "Fix API Management log retention on the pricing page" and reads: "Free is 7 days of logs and 30 days of audit logs (was 1 / 3 days)." Keys, requests and the $0 price are unchanged. Source ↗
reduceddiscovered 2026-08-28 · effective date unknownmedium impact
No longer in force (2026-11-05). Log retention on the free plan narrowed from 7 days to 1, and audit log retention from 30 days to 3. Keys, requests and APIs are unchanged and the plan is still priced at nothing. Reversed 2026-11-05: Unkey's pricing page again gives the Free API plan 7 days of log retention and 30 days of audit log retention. Unkey's commit of 2026-11-05 reads: "Free is 7 days of logs and 30 days of audit logs (was 1 / 3 days)." Source ↗
Zuplo
reduceddiscovered 2026-08-28 · effective date unknownhigh impact
The free tier now has a limit of 100K requests/month, not 1M. The free tier also does not include custom domains. Unconfirmed. We could not check this change against an archived copy of Zuplo's page, so it does not count toward the rating.Source ↗
Watch Both Vendors for Pricing Changes
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.