# B3 Tesouro Direto APIs

**Canonical:** https://apis.io/apis/b3-exchange/b3-tesouro-direto-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/tesouro-direto

B3 Tesouro Direto 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 Government Bonds, Reference Data, and Positions. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

Treasury Direct platform APIs - the Bonds API serves reference data for Brazilian public bonds (name, maturity, Selic code, platform identifiers), Positions serves investor position balances, and Orders covers operations on the Tesouro Direto platform.

## Machine-readable artifacts (7)

- **Documentation** — https://developers.b3.com.br/apis/tesouro-direto
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/openapi/b3-exchange-tesouro-direto-bonds-openapi.json
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/openapi/b3-exchange-tesouro-direto-positions-openapi.json
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/openapi/b3-exchange-tesouro-direto-orders-openapi.json
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/overlays/b3-exchange-tesouro-direto-bonds-overlay.yaml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/overlays/b3-exchange-tesouro-direto-positions-overlay.yaml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/b3-exchange/refs/heads/main/overlays/b3-exchange-tesouro-direto-orders-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 OTC (Balcão) APIs](https://apis.io/apis/b3-exchange/b3-otc-balcao-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

Government Bonds, Reference Data, Positions

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