If the client asks for a model not in the allowlist, the proxy now uses its
configured default instead of 400-ing. So switching the upstream to a Routstr
node is purely server-env (SASQUATCH_AI_BASE/KEY/MODELS) with no client redeploy.
AGENTS.md documents Routstr discovery (kind 38421, endpoints in 'u' tags), the
live nodes found, and the fund->key recipe.
The proxy now reads its upstream from SASQUATCH_AI_BASE + SASQUATCH_AI_KEY
(falling back to Netlify's injected OPENROUTER_* vars), and the model allowlist
is overridable via SASQUATCH_MODELS. Default behaviour is unchanged (gateway).
This makes switching to a sats-only provider a config change, e.g. Routstr:
SASQUATCH_AI_BASE=https://api.routstr.com/v1
SASQUATCH_AI_KEY=cashuA… (raw token) or sk-… (session)
NOTE: api.routstr.com was returning 404 (empty models) on 2026-09-27, so we are
NOT switching yet. Documented in AGENTS.md.
- netlify/functions/ai.mjs: optional Pro enforcement (SASQUATCH_REQUIRE_PRO=1).
Requires a NIP-98 kind-27235 auth header (x-sasquatch-auth) and, unless the
caller is a platform owner, an active Pro pass (x-sasquatch-pro = a
provider-authored zap receipt) verified OFFLINE — signature, user binding,
platform tag, and paid-amount → tier. Off by default.
- src/lib/proAuth.ts: signs the NIP-98 once per session (no Amber popup per
message) and attaches the Pro receipt.
- sasquatchBrain: threads auth headers through the proxy (streaming + non).
- useSasquatchPro: exposes the winning receipt event.
- Verified: 200 with the gate off, 401 with it on (env reset afterwards).
- netlify/functions/ai.mjs: POST /api/ai runs against Netlify's AI Gateway —
Netlify injects OPENROUTER_API_KEY + OPENROUTER_BASE_URL into Functions, so no
key is managed or shipped. Curated model allowlist, best-effort per-IP
throttle, CORS for web + Capacitor, and SSE streamed straight through.
- sasquatchBrain: call the proxy instead of OpenRouter directly; drop
VITE_OPENROUTER_API_KEY entirely; PROXY_MODELS set to the slugs that actually
work via the gateway (its ZDR policy blocks gemini/anthropic/gpt-4o-mini).
- netlify.toml: [functions] directory.
- Verified in production: POST https://skate-spots.org/api/ai -> 200.
