🧭 Aggregators (one key, many providers) · no card · provisional — added recently, two weeks of probes still to pass · live — last verified by a probe on 2026-09-17 · portal.nousresearch.com · back to the whole list
Nous Research’s inference portal behind its Hermes Agent: a $0 Free plan limited to the models it prices at zero — eight on 2026-09-16, Step 3.7 Flash and Laguna S 2.1 among them — on an OpenAI-compatible API
step-3.7-flash, laguna-s-2.1
The portal’s plan table reads “Free $0 Free models only Standard rate limits $0 monthly credits Try Hermes”, and the Hermes Agent guide has you “create a Nous Portal account (or sign in), choose the Free plan, and authorize Hermes” — “The :free tag is what keeps it on the no-cost plan”. No rate-limit figure is published and no page read mentions a card. The keyless catalog prices eight rows at zero; a call without a key answers HTTP 402 with a payment offer, so the free models want the portal’s key. Read 2026-09-16
https://inference-api.nousresearch.com/v1NOUS_PORTAL_API_KEY — get one at https://portal.nousresearch.comstepfun/step-3.7-flash:free, poolside/laguna-s-2.1:free, poolside/laguna-xs-2.1:free, inclusionai/ling-3.0-flash-fin:free, inclusionai/ling-3.0-flash-sante:free, upstage/solar-pro4:free, meituan/longcat-2.0:free, stealth/union-alpha:free, every listed family required at a zero price2026-09-17 — Added to the list: Nous Research’s inference portal behind its Hermes Agent: a $0 Free plan limited to the models it prices at zero — eight on 2026-09-16, Step 3.7 Flash and Laguna S 2.1 among them — on an OpenAI-compatible APIGenerated from registry.yaml on 2026-09-18 and re-verified twice a week; the full list, the Atom feed and the machinery are at https://github.com/mvalentsev/awesome-free-ai-coding.