Back to Browse
BR Data API – SELIC & CDI Rates
x402
BR Data API – SELIC & CDI Rates is a paid API for AI agents from brasil-data-x402.wagner-proc.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Returns the current Brazilian SELIC target rate and annualized CDI rate as published by Banco Central do Brasil (BCB).
Price / call$0.005
Success—
StatusUnknown
How this service works
Clean, normalized Brazilian public data (CNPJ, CEP, BCB rates, PTAX, holidays/business days, banks/ISPB) for AI agents. Paid endpoints use x402 (HTTP 402, USDC) — no signup or API key. Not affiliated with Receita Federal, Banco Central or Correios.
Output
A JSON object containing two sub-objects: 'selic_target' with the current SELIC rate (% a.a.), its as_of date, and unit; and 'cdi_annualized' with the current annualized CDI rate (% a.a.), its as_of date, and unit. Data is clean and normalized from BCB sources.
Example use cases
Fixed income yield benchmark check
“I'm evaluating a Brazilian CDB investment — can you pull the current SELIC target and CDI annualized rate so I can compare the offered yield against the benchmark?”
Automated Brazilian rate monitoring
“Every morning, fetch the latest SELIC target and CDI rate from the Brazilian central bank and alert me if either has changed since yesterday.”
Financial report data enrichment
“I'm building a report on Brazilian macroeconomic conditions — grab today's SELIC and CDI rates, including what date they're as of, so I can include them in the summary.”
Technical details
Endpoint
GEThttps://brasil-data-x402.wagner-proc.workers.dev/v1/rates/selic?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need clean, normalized, ready-to-use SELIC and CDI rate data from Banco Central do Brasil without requiring an API key or signup. Ideal for AI agents that need Brazilian interest rate data on demand with micro-payment pricing via x402/USDC. Prefer over scraping BCB directly or maintaining your own rate polling infrastructure.
Side effects
- 402 Payment Required if USDC payment via x402 is missing or insufficient
- 503 or upstream error if BCB data source is temporarily unavailable
- Stale as_of dates if BCB has not published updated rates (e.g. weekends or holidays)
- Network timeout from the Cloudflare Workers endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"selic_target": {
"unit": "% a.a.",
"as_of": "2026-10-07",
"value": 13.75
},
"cdi_annualized": {
"unit": "% a.a.",
"as_of": "2026-10-06",
"value": 13.65
}
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"