> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://partner.ninjatrader.com/_mcp/server.

# Authentication


## API Docs

- Authentication [Access Token Request](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/access-token-request.md)
- Authentication [Exchange Short Grant Code](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/exchange-short-grant-code.md)
- Authentication [Me](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/me.md)
- Authentication [O Auth Token](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/o-auth-token.md)
- Authentication [Renew Access Token](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/renew-access-token.md)
- Authentication [Resend Device Approval](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/resend-device-approval.md)
- Authentication [Short Grant Code](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/short-grant-code.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/openapi.json)
- [OpenAPI YAML](https://partner.ninjatrader.com/connect/api/rest-api-endpoints/authentication/openapi.yaml)