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Losbeto Brazilian Business Day Counter (ANBIMA 252)
x402
Losbeto Brazilian Business Day Counter (ANBIMA 252) is a paid API for AI agents from markets.losbeto.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Counts Brazilian bank business days between two dates using the ANBIMA 252 convention and returns the day count plus the du/252 year fraction for BRL rate calculations
Price / call$0.01
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
Returns a JSON object containing the count of Brazilian bank business days between the two input dates calculated under the ANBIMA 252 convention, and the corresponding du/252 year fraction ready to use as an exponent for CDI or other BRL rate calculations. Carnaval, Good Friday, Corpus Christi (Easter-dependent), and Consciência Negra (national since 2024) are correctly handled. No upstream calls are made.
Example use cases
CDI rate annualization for BRL bond
“I need to price a Brazilian CDI-linked bond maturing on December 15, 2025 — can you get me the business day count and the du/252 year fraction from today, July 1, 2025, to maturity so I can annualize the rate correctly?”
Interest rate swap tenor calculation
“For a BRL interest rate swap that starts March 3, 2025 and ends March 3, 2026, how many ANBIMA business days are in that period and what's the corresponding 252-convention year fraction?”
Derivatives desk holiday-aware day count
“I'm pricing a Brazilian DI futures contract and need to know the exact number of bank business days between August 1, 2025 and January 2, 2026 — make sure Carnaval, Corpus Christi, and Consciência Negra are accounted for correctly.”
Technical details
Endpoint
GEThttps://markets.losbeto.xyz/br-bizdays?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a correct, Brazil-specific ANBIMA 252 business day count for BRL fixed income pricing, CDI annualization, or derivatives tenor calculations. It correctly handles Easter-dependent holidays (Carnaval, Good Friday, Corpus Christi) and the 2024 national status of Consciência Negra — errors a hardcoded table would silently introduce. Prefer it over generic business-day calculators that lack Brazil-specific holiday rules, and over building your own table which would require constant maintenance.
Side effects
- Missing required 'from' or 'to' query parameters returns an error
- Malformed date strings (non-ISO format) may cause parsing errors
- Dates outside the supported holiday table range may return incorrect counts
- Payment failure via x402 (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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