Every free api gateway tier that clears our bar in 2026: 4 offers meet the criteria and 1 offer is demoted with a named reason. Recorded changes and a published ranking method. We could not confirm today's terms for 2 of them: on 1 the page we cite did not answer, and on 1 our own read did not confirm them. Each row says why.
Open-source API gateway — self-hosted: free forever under MPL-2.0, includes rate limiting, auth, analytics. Cloud: 48-hour free trial only, paid plans usage-based. Dashboard and developer portal included
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".
Event gateway — 10K events/month, 100K discarded requests, 3-day retention, 5 events/sec throughput. SOC2 compliant
Free tier includes 100K requests / month. Custom domains are $25/mo for 2 domains (max).
Kong Gateway is an open-source API, LLM and MCP gateway under Apache 2.0. It is self-hosted with no request or usage limits and includes the Kong Manager web UI. Kong Konnect is a separate hosted platform with a free trial and per-gateway paid plans. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-08, so we cannot confirm these terms today.
| Vendor | Free Tier | Key Limits | Durability | Read / catalogue date |
|---|---|---|---|---|
| Tyk | Open Source | Open-source API gateway — self-hosted: free forever under MPL-2.0, includes rate limiting, auth, analytics. Cloud: 48-ho... | stable | 2026-11-11 |
| Unkey | Free | API key management. The "Free" plan is priced at 0 USD / mo and lists "1k API keys", "150K valid requests / mo", "7-day ... read found the page different · 2026-11-08 |
improving effective 2026-11-05 |
2026-11-08 / 2026-10-18 |
| Hookdeck | Developer | Event gateway — 10K events/month, 100K discarded requests, 3-day retention, 5 events/sec throughput. SOC2 compliant | stable | 2026-11-08 |
| Zuplo | Free | Free tier includes 100K requests / month. Custom domains are $25/mo for 2 domains (max). | — | 2026-11-08 / 2026-10-18 |
We publish no ranking of these. Nothing we record measures popularity or generosity, so naming a best or a top few would be our preference rather than our data. We hold 4 free api gateway offers that clear our bar, each listed with the terms we publish and the date we last read them. Our ranking rule is published at /criteria.
4 offers meet our criteria for this category. Of those, 2 carry no recorded change to the terms we publish, 1 a recorded widening, and we publish no durability signal for 1. The Durability column below says which offer is in which group, and links the dated record behind every change. We withhold the class where the pricing page does not resolve or states no amount, tier or rate we can read, where we refused the last read, where the listing is gated, or where a narrowing in our records cites no source or no archived copy of the vendor's page has confirmed it. We do not rank these by how much you get, because the limits are not comparable without reading each vendor's page.