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Losbeto BR Archive — Brazilian Market Data Historical Snapshot
x402
Losbeto BR Archive — Brazilian Market Data Historical Snapshot is a paid API for AI agents from markets.losbeto.xyz, paid per call via x402, $0.09/call, status unknown (last checked 2026-10-12).
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.
Price / call$0.09
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
Historical macro audit for compliance report
“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.”
Backtest using verified Ibovespa data
“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.”
Verify a broker's reported PTAX rate
“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.”
Technical details
Endpoint
GEThttps://markets.losbeto.xyz/br-archive?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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