{"uid":"cap_rIaSxzuiQ5ztpt_BCHgON","slug":"losbeto-br-archive-brazilian-market-data-historical-snapshot-dd9d8903","name":"Losbeto BR Archive — Brazilian Market Data Historical Snapshot","description":"OpenAI-compatible LLM gateway at $0.005/call — change base_url, pay in USDC. Plus pay-per-call market data: multi-oracle price consensus, sentiment, forex, equities, commodities, Brazil macro (BCB/B3) and crypto. No API keys, no accounts. USDC on Base, Solana and Algorand via x402.","url":"https://markets.losbeto.xyz/br-archive?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","properties":{"queryParams":{"type":"object","required":["day"],"properties":{"day":{"type":"string","description":"day parameter"}}}}},"output":{"type":"object","properties":{"example":{"type":"object","description":"What did Brazilian markets actually look like on a specific past day — provably? One signed, point-in-time snapshot per day: BCB macro (Selic, CDI, IPCA, IGP-M, PTAX), Ibovespa close and fear/greed, frozen exactly as published and signed Ed25519 with this node's key. Call ?day=YYYY-MM-DD (default: latest). The history cannot be backfilled or altered retroactively — verify the..."}}}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.09","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.09/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.09","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.09","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gM_Cpt43HSnoIuocnxXz1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.09","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a cryptographically signed, point-in-time snapshot of Brazilian market data (BCB macro indicators, Ibovespa, fear/greed) for a specific past date, verifiable via Ed25519 signature.","exampleAgentPrompt":"Pull the Losbeto BR archive snapshot for March 15, 2024 — I need the Selic rate, IPCA, PTAX, and Ibovespa close for that day, with the Ed25519 signature so I can verify it offline.","exampleUseCases":[{"title":"Historical macro audit for compliance report","prompt":"Get me the official BCB macro snapshot for January 31, 2024 — I need Selic, CDI, IPCA, IGP-M and PTAX exactly as they were published that day, plus the cryptographic signature so the auditor can verify it."},{"title":"Backtest using verified Ibovespa data","prompt":"Pull the Ibovespa closing price and fear/greed index for October 3, 2023 from the Losbeto BR archive — I'm backtesting a strategy and need a tamper-proof record of that day."},{"title":"Verify a broker's reported PTAX rate","prompt":"What was the PTAX exchange rate on November 10, 2023 according to the Losbeto signed archive? I want to check whether my broker's reported rate matches the BCB-sourced figure."}],"resultDescription":"A JSON object containing a signed, frozen snapshot of Brazilian macro and market indicators for the requested date: BCB-sourced Selic, CDI, IPCA, IGP-M, and PTAX rates; Ibovespa closing price and fear/greed index; plus an Ed25519 digital signature from the Losbeto node for offline tamper-proof verification. Data cannot be backfilled or retroactively altered.","failureModes":["Missing or invalid 'day' query parameter returns an error or defaults to latest snapshot","Requested date predates archive coverage — returns error indicating no record exists","Malformed date format (not YYYY-MM-DD) causes rejection","Service unavailable or payment not processed via x402 — 402 Payment Required response","Date in the future returns no data"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically verifiable, immutable historical record of Brazilian macro indicators (BCB: Selic, CDI, IPCA, IGP-M, PTAX) and Ibovespa data for a specific past date. It is uniquely suited for compliance, auditing, backtesting, or dispute resolution where tamper-evidence (Ed25519 signature) is required. Prefer this over generic financial data APIs when you need BCB-specific indicators or provable data integrity for Brazilian markets specifically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:36:05.338Z","isFirstParty":false,"canonicalSlug":"losbeto-br-archive-brazilian-market-data-historical-snapshot-dd9d8903"}