brazil_real_curve

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Real (IPCA-linked) Brazilian sovereign zero-coupon curve, bootstrapped from Tesouro Direto NTN-B Principal (zero-coupon) and NTN-B (semi-annual real coupon) offered-security quotes. Built entirely from the bonds' own quoted real yields — no Focus/IPCA projection is used anywhere in this engine. curve_scope = "tesouro_direto_offered_securities" (see brazil_yield_curve). Note: Tesouro currently offers no short-dated real zero-coupon bond, so this curve typically has NO coverage for 1Y/2Y tenors — check `status` per tenor. Use when: you need Brazil's real (inflation-protected) rate curve. Do not use when: you need the nominal curve (brazil_yield_curve) or breakeven inflation (brazil_inflation_breakeven). Args: as_of: optional YYYY-MM-DD. Defaults to today. tenors: comma-separated subset of 1Y,2Y,3Y,5Y,7Y,10Y. Default: all. quote_side: "buy", "sell", or "mid" (default). payment_token: required in staging ($0.03/call per pricing.yaml).