# Provenance stamped 2026-10-07 (roadmap#943): written by an API Evangelist sweep (undated — the file carries no date and git cannot supply one), not # harvested from the provider. `method: generated` so the economics campaign may replace it with a # dated, verbatim transcription; every figure below is unverified until it does. method: generated plans: - name: Public (Free) description: >- The Olympus Protocol Metrics API and OHM Supply APIs are fully public and free to use with no authentication required. All endpoints are served through Cloudflare with a one-hour edge cache TTL for data routes. No API keys, registration, or rate limit headers are documented. The date-range query window is capped at 366 days per request by the server-side METRICS_API_MAX_RANGE_DAYS setting. url: https://docs.olympusdao.finance/ tags: - Free - Public - No Authentication rate_limits: - period: none documented limit: none documented features: - Daily protocol metrics (OHM price, APY, index, supply, treasury value) - Daily treasury asset records per token/wallet/chain - Daily OHM supply attribution records - Date-range queries up to 366 days - 'CORS open (access-control-allow-origin: *)' - No API key required - OpenAPI specification at /openapi.json x-canonical: generated: '2026-10-08' vocabulary: all/0-working/economics/plans-canonical.yml models: [] units: [] plans: - name: Public (Free) access: other model: unstated model_how: derived units: [] periods: []