# B3 OTC (Balcão) APIs

**Canonical:** https://apis.io/apis/b3-exchange/b3-otc-balcao-apis/  
**Provider:** B3 (Brasil Bolsa Balcão) — https://apis.io/providers/b3-exchange/  
**Base URL:** https://developers.b3.com.br:8065  
**Documentation:** https://developers.b3.com.br/apis/api-balcao

B3 OTC (Balcão) APIs is one of 10 APIs that [B3 (Brasil Bolsa Balcão)](https://apis.io/providers/b3-exchange/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include OTC, Fixed Income, and Registration. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

Registration, custody, and consultation APIs for the OTC segment - bank funding instruments (CDB, RDB, LCA, LCI, LF, LIG), credit notes (CCB, CPR, NC), OTC derivatives (swaps, flexible options, term contracts), liens and collateral, plus the NoMe Public-Info API for OTC public information consultation.

## Machine-readable artifacts (3)

- **Documentation** — https://developers.b3.com.br/apis/api-balcao
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/openapi/b3-exchange-otc-public-info-openapi.json
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/overlays/b3-exchange-otc-public-info-overlay.yaml

## Other B3 (Brasil Bolsa Balcão) APIs (9)

- [B3 Investor Area (Área do Investidor) APIs](https://apis.io/apis/b3-exchange/b3-investor-area-apis/)
- [B3 Tesouro Direto APIs](https://apis.io/apis/b3-exchange/b3-tesouro-direto-apis/)
- [B3 Listed Markets (Listados) APIs](https://apis.io/apis/b3-exchange/b3-listed-markets-apis/)
- [B3 ISIN API](https://apis.io/apis/b3-exchange/b3-isin-api/)
- [Banco B3 APIs](https://apis.io/apis/b3-exchange/b3-banco-b3-apis/)
- [B3 Insurance (Seguros) APIs](https://apis.io/apis/b3-exchange/b3-insurance-apis/)
- [B3 Authentication APIs](https://apis.io/apis/b3-exchange/b3-authentication-apis/)
- [B3 Market Data Feed (UMDF)](https://apis.io/apis/b3-exchange/b3-market-data-feed-umdf/)
- [B3 UP2DATA](https://apis.io/apis/b3-exchange/b3-up2data/)

## Tags

OTC, Fixed Income, Registration

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/b3-exchange/b3-otc-balcao-apis/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/b3-exchange/.